Yep excellent - left earbud stopped charging and this video fixed it. What a terrible design flaw, the internal battery goes below 1V and the charging circuit stops working. Sennheiser should be ashamed.
@@artursk2899So..... If you are correct, and I doubt that very much, you forget to charge them for a few months and they become bin fodder. If this is the case, there should be a warning in the paperwork or a notification in the software. They are much too expensive for this fault to be deliberate.
@@markjordan4593 actually this can happen with li-ion batteries. I had restored two batteries by using an external charger, granted, it was a long time ago, but the general idea is that even if they report they are empty, there is still some charge left, to protect the battery, once that charge is lost, you need to "jump start it", this might degrade it. I do not know about LiPo batteries, but it would not be unheard of. Sennheiser already claimed that there was an issue with their battery supplier, that is why they are exchanging defective ones with MTW4, if yours is dead and you still under warranty.
I fixed my MTW 3. My problem was finding a power source. I had one staring at me right in the face. An old battery for a UPS backup case. It had 8 volts on it. I used it to charge my right earbud which stopped working a few days ago. I jump charged it for about 2 minutes. Reassembled it, and put it back in the case. Started charging immediately. After 5 minutes I wanted to check to see if any lights were blinking. The red light was blinking. That was the 1st sign of life. Put it back in the charger and charged it some more. Decided to pair both buds up and test for sound. Paired up with no problem. Connected it to the Smart Control app. Smart Control app showed only 20% charge for the bud I fixed. Before I had only 10% charge, so Im making progress. BTW on the sound test, the buds sounded great, like they were new. Thanks so much for this video. Too bad I didnt try this sooner. Yesterday I ordered a pair of MTW 4 on Amazon.
I came across this and thought there was no way it would work... then I read all the comments and decided to give it a shot. Took a bit to disassemble the earbud, but heat gun on low setting definitely helped loosen the glue. I didn't have the standalone holder for 3 AA batteries, so I just used something I had with 2 AAs, loosely connected two copper wires I had to the ends of the batteries and to the connector ends of my multimeter (black to negative, red to positive), then held the leads where they are shown in the video for 3 minutes. Put it back together and problem solved! Thank you so much for this!
I was in the same position as many people here and this also worked for me! I'm not at all handy when it comes to electrical/DIY things, but I picked up a multimeter at the local hardware store and was able to work through the easy steps from this video. In case helpful for others, I did not have a heat gun and so simply used a hairdryer on low heat. I also didn't have a tray for batteries and so simply used the remote control for my TV to charge the earbud up from ~ 0.9V to just over 3.0V. It took a few minutes of charging in the case (with the case plugged in) for it to regain charge, but it's now working great. Thanks! Excellent video.
@@diplodocus3 I had the hairdryer on the lowest heat setting and holding it 2-3 cm away from the earbud. I applied heat for 15-20 seconds. You don't want to heat the earbud too much, so try after this much time. If it doesn't start to open up, give it another 20 seconds or so.
@@gompthis13 Thanks! Finally fixed the left bud today! Got a hint from iFixit's videos to put pressure on the bud in a vice (i did it with a plyer) and pry open. But a new surprise for me: Right bud audio has started acting up 🤡
Fixed!! You delivered THE tutorial to fix the most common MTW3 bug :)) I just found a pair of MTW3 and after deepcleaning they looked pretty neat! Turns out right bud is dead. After finding your tutorial I gave it a last try and what should I say? It worked on point! Very happy with a new pair of BT Buds :)) Thank you, Alex!
Man, what a life saver you are! Thanks a lot! My second pair (first one was returned for the same reason) stopped working last week and I've moved to a country where the warranty is only available for products bought locally. This fixed it completely! Let's just hope it won't drain out again.
Did your procedure exactly in the same way you explained it in the video and it works great, perfectly !!!! Thank you kindly !!!! 🍺🍾 Would also like tò add a foot note: My left earbud was measured at a pitiful 0.91 volts prior tò beginning the charging process and after the one minute mark was still only 2.8 so i decided tò let It rest for 5 minutes and then give It another one minute. That did the truck ! One minute charge, rest (only because the battery was effectively dead !), then a second one minute charge, put it in the charging case for several hours and now it's breathing again !!!! 💪👏👍
This video was extremely helpful! I travel for a living and Sennheiser wouldn't help me unless I went back to the country I bought them in. After watching this video and some help of my husband both earbuds work again after a month of being broken. Very Greatful for people like you who post very helpful and educational content! I've had these less then 10 months and this would have been my third replacement. I'm happy I was able to get these to work again with the assistance of this video❤
Carried out this fix on my left MTW3 which wasn't showing any signs of life. I didn't have any sort of AA, AAA battery options to hand, so used my portable USB charge pack (which was showing as outputting 5V) for 1 minute. I cut one end off a USB cable and used the red and black cables within, and then plugged the other into my battery pack. Worked perfectly thank you!
I was on the verge of throwing my earphones away, but thanks to you, I don’t have to anymore! As a Sennheiser-loving Japanese person, I was really fed up with these earphones, so your help was truly appreciated. With love from Japan.
Thank you Alex! AGAIN! My L earbud failed last year and I fixed it using your video instructions. Now my R earbud just failed. Fixed it again with your video. You are brilliant!!
I had a dead left twr3 earbud not charging. After following the instructions from this/your video it works like a charm. You are my hero of the day. Thank you!
Thank you for sharing this. I just tried it on a pair of white TW3s and it worked :-) I did use a small amount of heat from a heat gun to help open the case. The left bud was at 1.2V. RC helicopter controller had 4 AAs so I tapped +ve and -ve from 3 of them to give 4.5V. Waiting for the left bud to complete charge in the case (it's gone from 30% to 40% which sounds promising...). Planning to use a small amount of impact adhesive on case reassembly, but not too much in case I have to do this again!
@@tosejancevski8680 no ,inside is charging controller and it refuse to charge below "safe voltage". You must open it to give a voltage kick directly to the battery and also best option is to replace battery.
God, man, ty a lot, today mortyng my right ear don't work, but I had everything to solve this problem, 5 mins and Work!!! Bro love you, I read the forums and knew about this problem, but I didn’t have a solution, thank you thank you thank you bro that your latest video saved me from disappointment
Really cool. Did it yesterday as soon as I saw your video, using 5V / GND of a Raspberry for charging. Both earbuds were below 1V so no life sign what so ever, got them up to 3.5 V using your method then put them in case. Now both fully charged and well alive :) Thank you !
A thousand thanks from THAILAND. Since October’22, It’s my 4th pair. The first 2 pair were returned because of sharp noise from the R side. The 3rd one because of R side didn’t wake up anymore after 3 months. This is the last one as it has been out of warranty period and it got problem same as the third one. So lucky that I found your tutorial. Now the problem is solved. Still wonder that anyone experienced this problem repeatedly ?
It seems the warranty still not completely solve the problem. That's why the Sennheiser Momentum True Wireless 4 there is a part saying the battery is from other suppliers, in-app that prevent the battery overly charge~ That makes the owner of Sennheiser Momentum True Wireless 3 feels cheated. #iwantmymoneyback 😂
@@alexv3311. I’ve seen several reviews of MTW4. It really looks similar to our MTW3. The difference seems to be only color of the ear buds and color of logo on the charging case. They make me think about it’s just the remanufacture of returned MTW3 with new battery to take our money again. 😢😢
Thank you so much for this tutorial. My earbud is now charging again. I just have the problem now, that the casing opens too easily at the seam now. Any type of glue you can recommend to reseal it? Quick tip for anyone attempting this themselves: If you don't have a "fancy" battery case like in the video or another 4.5V - 5V power source, you can just put the batteries in series (positive pole on negative) and tape them together. This should additively up the voltage.
@@mattolika I used the wires of my multimeter. Although one end of these cables had recessed contacts. I just used some aluminum foil to get in there and connect up these to the battery poles. I used the pointy contacts for probing on the headphones.
Thanks a ton.. It really did solve the issue. I really like the headphones but was about to throw them .. Was really dishearted when the sennheiser team did not even respond. Thank you for putting this on.
Much appreciated! send them back tree times under warranty and always gotten replacements. Now the warranty has ran out i can fix them myself. Took a few tries but got there.
Finaly fixed these 🎉😊 Thank you. You can do the same with a 9V as well just be sure to not hold the connection to long at a time. Works well if u hold for 10s at a time for a total of around a minute. 🎉 Love how these sound so really happy Iw got them going again ✨🤙🏼
Fixed my issue. Took a few goes to yo get Battery volt up( no meter) keep trying!!! Still not impressed with how often a premium product having such a common problem.
Perfect. Thanx a lot Alex. My first pair of MTW3s were replaced under warranty because of the dead L earbud. And i was strugguling with the same issue with the newer ones also. 350-400 bucks saved.
THANK YOU !!!!!!!!!!!!!!!!!!! 100% fixed !!! Left side stopped working after just three months of use!! I was going to throw it in the trash because Sennheiser's technical support in Brazil is terrible!! I bought the left side on EBAY for $80 (include postal service ) but when it gets here, I'll have to pay another US$80 ( Brazilian extortion tax...!!! ) US$160 for left side only. I should have tried your repair before buying the left side!! It will be kept in backup 🙂
Hallo @OctavioPessoa2009, I'm also from Brazil and I'm facing the same issue as you faced. Are you from São Paulo Capital? If yes, have you tried to use the Technical Support from here? I'm having the same issue for the second time and I really want to test this solution from Alex V. I'm just not so sure if the warranty is already expired, I need to check with them, but seems to be impossible, due to the fact that they don't even hang up the phone and the e-mail seems to be wrong :( Did you use 3 Batteries AAA in parallel as in the video? Was it easy to do? Thanks in advance :D
Hello ! I'm from Rio , and yes, its IMPOSSIBLE to contact technical support, they don't respond email and phone I give up! If you bought your tws outside Brazil ( my case) there is only a 3 month warranty. If you bought here, (with Sennheiser Brasil) It has a two-year warranty...... but its impossible contact Brazilian tech sup! I use 4 AAA and its very easy !!! Just follow the video 🙂 @@AndrewAoyague
Hello :-) I live in Rio. It's impossible to contact Sennheiser support Brazil, no one answers the phone or responds to email., If you purchased from Sennheiser Brazil, you have a 2-year warranty, otherwise, only 3 months. About video repair, its super easy !! i use 4 AAA batteries in parallel just follow the video 🙂@@AndrewAoyague
@@OctavioPessoa2009 really nice to know it. Did you take around 5V, or less than that? Or even high? I'm a little bit afraid to use the wrong value for the power supply tension and then loose my phone, even thought it's not working at the moment :( Was it easy to open it?
@@AndrewAoyague Charge between 4.5 and 5v,. To open, you won't be able to do so without first heating the edges. use a hairdryer for about 3 minutes to soften the glue and for close , you won't need glue :-)
Thanks man, really appreciate it, 250 bucks saved, what a shame for sennheiser, but what a sound they deliver. From Latinoamérica, it worked. It was hard to turn it on, but finally, GOT IT!!: No need of multimeter= just if you have the same model as in the video. Just + & - cables, 3 AAA and try!!! I am very happy!
You are a legend. Fixed it with your hack, was worried since I didn't even have the warranty and I had bought them literally 4 months ago. Would advise people not to buy this.
@evanqashanna3447 no you can't charge it while close. You need to open it and it is very safe to use 9 volt I did it that way 9 volt red and black wire from it and did like the video said same poles. You need to reach charing of 3.5 or 3.6 of voltage then put it inside the case and it will work. Mine was dead for 1 year and suddenly saw they video and I did it and wow it working. Spend 3 mins 4 mins till the battery reach 3.5 volt at least.
@evanqashanna3447 hair dryer but put it to high hot air use it for 3 mins then carefully try to open it. After you finish fixing it put silicone the same place the glue was to seal it thanks.
It worked for me and now my earbuds are working again!!! Thank you very much for this!!! The earbud batteries are not charging up to 100%, they remain around 80% to 70%, but I guess this is another problem. Such a shame that this phones got this huge problem! I enjoy their sound, but this unreliability made me switch to Airpods Pro 2.
Thats Amazing. You saved my sennheiser with this video. Just use adapter with multiple voltage with below 5 volts and it works again. Marvellous. You are life saver. Thank you very much, sir! ❤
Great stuff! This saved my second pair (which had been already a warranty replacement for the same reason). Unbelievable what the engineers did... Just forget to put them in the charger for some time and they die!!! Shame on Sennheiser for that, which is particularly sad because they sound really great.
you're a godsend. I really was not looking forward to having to go through the warranty replacement process... again 😂 despite its negatives the internet is great because of folks like you who share their knowledge purely to help others.
Thanks to your video I solved it, the right earphone was no longer charging, unlike the video I improvised with a cable to charge the Xiaomi smartband, the contacts matched those of the earphone battery so I tried, the first test failed by heating the battery but it continued not to charge and work. On the second attempt I noticed some small shocks and I feared I had reversed the polarity so I tried again by reversing the side and after this attempt the earphone started charging correctly again, thank you very much, you were a great help 😉💪🙏👏❤
Thank you for this! I was doubting that I can do this myself but it WORKED! I’m now having slight trouble in holding the earpiece tightly with the case. Anyways, just wanted to say Thanks!
Mine got fixed today by using this tutorial. Just make sure the volt of the earbuds must be atleast 3.4+ so it can continue to work in the charging case. If its only 3.3 below it will just show red light one flash. No blue and green. So glad this tutorial existed
This tutorial is really the way to fix this common issue. It’s awesome, simple, but pretty unknown. Hopefully some more people will try and be fine with it :)
Just fixed following the exact method. I purposely bought one multimeter from Mr DIY yesterday to fix the problem. When I refer back to your video, only I realised it is exactly the same which makes it much easier as I am not really an electrical person. My left earbud was about 0.8 V and I charged using A23 12V battery.
It works , thanx, left was all dead and ad 10% but made no connection , no lights , but now it turns on again and make connection and play sounds , for now it only charge to 80% but I let it on the power for a while to see if it goes up till 100
This was the fix I needed. Thanks! Worked like a charm, though I had to charge it for about 3-5min before I got high enough volts for it to turn back on when put together. 0.7/0.9vDC on my buds though. Were in storage for about 8 months.
This worked for me. I used a 9v and juiced my earbud for a minute which got me just over 3v on the earbud. That was enough to get it to charge in the case. I got the earbud housing open just by gently prying with my thumbnail. Awesome video. Thank you.
Thanks a lot @alex V . Sorry I don't know you name. The steps worked wonders. It fixed my headset. Right one had gone dead and this was a replacement set that Sennheiser had sent me against the flawed momentum 1 that I had bought BIG BIG THANKS! Keep making such helpful videos.
This fix worked successfully for me. However, three weeks after I asked for help from Sennheiser they came back with this: • Leave the earbuds in the charging case for at least 30 minutes. • If the battery is deeply discharged/the LEDs do not respond after half an hour, put the earbud in the case for 10 seconds, take it out for 5 seconds and repeat the process 10 times to reach the low charge threshold to overcome. It's too late for me to try the approach of repeatedly putting the earbud in the case for 10 seconds but it might save someone else from the hassle of dismantling their earbud.
After 2 years, my left earbud was "dead", no LED light, no connection. I tried unpairing and factory reset (see the TW3 manual for the method). I had put on a larger rubber ring, and maybe didn't get it set into the charging case correctly? I pushed down on the two power contacts in the case, wiped the bud power connections and the case connections with a paper towel, and set the earbuds back in the case, plugged in USB overnight. They both work now!
Great video, thank you! I had the same issues and fixed the problem exactly as instructed. However, I think I might have put too much "heat" when dissembling, because now the upper part of the casing is going out very easy. Any suggestions how to fix it - should I use instant glue or is there another way?!
I didn’t expect to have to do this to a pair of earbuds costing nearly £300 after only 13 months, but it worked a treat, thank you. What glue would you recommend for holding the case together afterwards?
Thank you It worked!!!!!!!! Both ear buds is working again !!! But its not sealed its loose what did you use to stick it again sir? @sennheiser pls fix this issue your product is expensive yet your product is like china made but with good audio quality. Poor QC ypu should fix this. This is the first and last sennheiser product that i will buy.
hey, thanks a ton for this video! i was about to give up on my sennheisers, but your tutorial totally saved them. appreciate the clear and easy-to-follow instructions. You’re a true hero!🍻🤜🤛
Alex thank you very much. I sent it to warranty when it happened first time and it took 2 months to send a new pair of them. But it happened after 4 -5 months later again. So I tried your solution and BANG it worked!. Only issue is it repeats once a week and have to do it again :(
I WANT TO THANK YOU FROM THE BOTTOM OF NY MY HEART FOR WHAT COULDVE BEEN A $200 WASTE OF MONEY ❤ But serious talk, why did this happened at all? Is there a preventative action? Like, not leaving earbuds out for too long? I dont understand why this happen.
Welp, just used this video and a hacked up USB cable for a stable 5v supply and jump started an earbud successfully (if a little too melty for getting too close to that heat gun). So thanks!
man, you made my day. I tried it with my Momentum TW 3 and it is working like a charm. I didn't have a setup to connect 3*1.5V batteries serial way. I used my power bank to do it which I was sure about it produces 5V and 4A. After applying the fix, I also want to say something for Sennheiser. It is totally a bullshit! I've heard few things more ridiculous! So far, I was calling myself as an engineer. it is my profession. but I'm not anymore from today on if the system designer of that product have been hired with a fuck'n engineer title!
Great video man :D Could you please do a video about replacing the battery when they finally died or stop working ? Which battery should one get that suits the MTW 3 ?
I have the same problem. Both of earbuds just stopped working. Last time they were pretty low and I didnt charge them for days and now they do not react at all. And these are my second earbuds that I am goind to bring back...insane..
Hi. Thanks for sharing. Will this remove the water resistance in the earbud? I think yes because the glue was removed. Do you think we can glue again to keep the water resistance for the earbud?
This tragedy happened to me today. Still under warranty. I am able to DIY and fixed the charging problem according to your advice Shall never buy any sennheiser products and highly not recommend to other music lovers
Yep excellent - left earbud stopped charging and this video fixed it. What a terrible design flaw, the internal battery goes below 1V and the charging circuit stops working. Sennheiser should be ashamed.
It's to protect you from exploding LiPo batteries. LiPos that have been discharged below 3 Volts should be discarded and replaced.
@@artursk2899So..... If you are correct, and I doubt that very much, you forget to charge them for a few months and they become bin fodder. If this is the case, there should be a warning in the paperwork or a notification in the software. They are much too expensive for this fault to be deliberate.
@@markjordan4593 actually this can happen with li-ion batteries. I had restored two batteries by using an external charger, granted, it was a long time ago, but the general idea is that even if they report they are empty, there is still some charge left, to protect the battery, once that charge is lost, you need to "jump start it", this might degrade it. I do not know about LiPo batteries, but it would not be unheard of. Sennheiser already claimed that there was an issue with their battery supplier, that is why they are exchanging defective ones with MTW4, if yours is dead and you still under warranty.
Do you think its s battery issue or motherboard issue?
@@artursk2899 Do you think its s battery issue or motherboard issue?
I fixed my MTW 3. My problem was finding a power source. I had one staring at me right in the face. An old battery for a UPS backup case. It had 8 volts on it. I used it to charge my right earbud which stopped working a few days ago. I jump charged it for about 2 minutes. Reassembled it, and put it back in the case.
Started charging immediately. After 5 minutes I wanted to check to see if any lights were blinking. The red light was blinking. That was the 1st sign of life. Put it back in the charger and charged it some more. Decided to pair both buds up and test for sound. Paired up with no problem. Connected it to the Smart Control app. Smart Control app showed only 20% charge for the bud I fixed. Before I had only 10% charge, so Im making progress. BTW on the sound test, the buds sounded great, like they were new.
Thanks so much for this video. Too bad I didnt try this sooner. Yesterday I ordered a pair of MTW 4 on Amazon.
I came across this and thought there was no way it would work... then I read all the comments and decided to give it a shot. Took a bit to disassemble the earbud, but heat gun on low setting definitely helped loosen the glue. I didn't have the standalone holder for 3 AA batteries, so I just used something I had with 2 AAs, loosely connected two copper wires I had to the ends of the batteries and to the connector ends of my multimeter (black to negative, red to positive), then held the leads where they are shown in the video for 3 minutes. Put it back together and problem solved! Thank you so much for this!
I was in the same position as many people here and this also worked for me! I'm not at all handy when it comes to electrical/DIY things, but I picked up a multimeter at the local hardware store and was able to work through the easy steps from this video. In case helpful for others, I did not have a heat gun and so simply used a hairdryer on low heat. I also didn't have a tray for batteries and so simply used the remote control for my TV to charge the earbud up from ~ 0.9V to just over 3.0V. It took a few minutes of charging in the case (with the case plugged in) for it to regain charge, but it's now working great. Thanks! Excellent video.
How close to the hairdryer? And how much time?
@@diplodocus3 I had the hairdryer on the lowest heat setting and holding it 2-3 cm away from the earbud. I applied heat for 15-20 seconds. You don't want to heat the earbud too much, so try after this much time. If it doesn't start to open up, give it another 20 seconds or so.
@@gompthis13 Thanks! Finally fixed the left bud today! Got a hint from iFixit's videos to put pressure on the bud in a vice (i did it with a plyer) and pry open. But a new surprise for me: Right bud audio has started acting up 🤡
Fixed!! You delivered THE tutorial to fix the most common MTW3 bug :))
I just found a pair of MTW3 and after deepcleaning they looked pretty neat! Turns out right bud is dead. After finding your tutorial I gave it a last try and what should I say? It worked on point! Very happy with a new pair of BT Buds :))
Thank you, Alex!
Welcome 👍👍
@@alexv3311ok will try this
Man, what a life saver you are! Thanks a lot! My second pair (first one was returned for the same reason) stopped working last week and I've moved to a country where the warranty is only available for products bought locally. This fixed it completely! Let's just hope it won't drain out again.
Did your procedure exactly in the same way you explained it in the video and it works great, perfectly !!!! Thank you kindly !!!! 🍺🍾
Would also like tò add a foot note:
My left earbud was measured at a pitiful 0.91 volts prior tò beginning the charging process and after the one minute mark was still only 2.8 so i decided tò let It rest for 5 minutes and then give It another one minute. That did the truck !
One minute charge, rest (only because the battery was effectively dead !), then a second one minute charge, put it in the charging case for several hours and now it's breathing again !!!! 💪👏👍
Great 👍
This video was extremely helpful! I travel for a living and Sennheiser wouldn't help me unless I went back to the country I bought them in.
After watching this video and some help of my husband both earbuds work again after a month of being broken.
Very Greatful for people like you who post very helpful and educational content! I've had these less then 10 months and this would have been my third replacement. I'm happy I was able to get these to work again with the assistance of this video❤
Carried out this fix on my left MTW3 which wasn't showing any signs of life. I didn't have any sort of AA, AAA battery options to hand, so used my portable USB charge pack (which was showing as outputting 5V) for 1 minute. I cut one end off a USB cable and used the red and black cables within, and then plugged the other into my battery pack. Worked perfectly thank you!
Ohh! A powerbank you mean? Because this would be the answer i need
Yea a small powerbank was what I used, seemed to do the trick
I was on the verge of throwing my earphones away, but thanks to you, I don’t have to anymore! As a Sennheiser-loving Japanese person, I was really fed up with these earphones, so your help was truly appreciated. With love from Japan.
Thank you Alex! AGAIN! My L earbud failed last year and I fixed it using your video instructions. Now my R earbud just failed. Fixed it again with your video. You are brilliant!!
Indeed a live saver bro. I just had these earbuds for 3 weeks and both buds won't charge anymore. This fixed everything man thank you so much 💯👌
Welcome ✌️
I am a Japanese who was saved by you.
My best thanks to you.
Thank you very much.
Welcome 👍 You are Awesome 😎
I had a dead left twr3 earbud not charging. After following the instructions from this/your video it works like a charm. You are my hero of the day. Thank you!
Thank you for sharing this. I just tried it on a pair of white TW3s and it worked :-) I did use a small amount of heat from a heat gun to help open the case. The left bud was at 1.2V. RC helicopter controller had 4 AAs so I tapped +ve and -ve from 3 of them to give 4.5V. Waiting for the left bud to complete charge in the case (it's gone from 30% to 40% which sounds promising...). Planning to use a small amount of impact adhesive on case reassembly, but not too much in case I have to do this again!
Can fix buds without open?and try to hit the pins in the earbud with 3 AAA batteries?
@@tosejancevski8680 no ,inside is charging controller and it refuse to charge below "safe voltage". You must open it to give a voltage kick directly to the battery and also best option is to replace battery.
God, man, ty a lot, today mortyng my right ear don't work, but I had everything to solve this problem, 5 mins and Work!!! Bro love you, I read the forums and knew about this problem, but I didn’t have a solution, thank you thank you thank you bro that your latest video saved me from disappointment
Really cool. Did it yesterday as soon as I saw your video, using 5V / GND of a Raspberry for charging. Both earbuds were below 1V so no life sign what so ever, got them up to 3.5 V using your method then put them in case. Now both fully charged and well alive :) Thank you !
Awesome 👍👍
how long did you charge it for with the 5 v
@@saulo5216 like 20/30 seconds
A thousand thanks from THAILAND. Since October’22, It’s my 4th pair. The first 2 pair were returned because of sharp noise from the R side. The 3rd one because of R side didn’t wake up anymore after 3 months. This is the last one as it has been out of warranty period and it got problem same as the third one. So lucky that I found your tutorial. Now the problem is solved. Still wonder that anyone experienced this problem repeatedly ?
It seems the warranty still not completely solve the problem. That's why the Sennheiser Momentum True Wireless 4 there is a part saying the battery is from other suppliers, in-app that prevent the battery overly charge~ That makes the owner of Sennheiser Momentum True Wireless 3 feels cheated.
#iwantmymoneyback 😂
@@alexv3311. I’ve seen several reviews of MTW4. It really looks similar to our MTW3. The difference seems to be only color of the ear buds and color of logo on the charging case. They make me think about it’s just the remanufacture of returned MTW3 with new battery to take our money again. 😢😢
@@alexv3311 I'm facing the same issue with MTW4, left earbud dead, will it work?
Thank you so much for this tutorial. My earbud is now charging again. I just have the problem now, that the casing opens too easily at the seam now. Any type of glue you can recommend to reseal it?
Quick tip for anyone attempting this themselves: If you don't have a "fancy" battery case like in the video or another 4.5V - 5V power source, you can just put the batteries in series (positive pole on negative) and tape them together. This should additively up the voltage.
What wires did u use to touch the poles to the earphones? 🙏
@@mattolika I used the wires of my multimeter. Although one end of these cables had recessed contacts. I just used some aluminum foil to get in there and connect up these to the battery poles. I used the pointy contacts for probing on the headphones.
Thanks a ton.. It really did solve the issue. I really like the headphones but was about to throw them .. Was really dishearted when the sennheiser team did not even respond. Thank you for putting this on.
Much appreciated! send them back tree times under warranty and always gotten replacements. Now the warranty has ran out i can fix them myself. Took a few tries but got there.
Finaly fixed these 🎉😊 Thank you. You can do the same with a 9V as well just be sure to not hold the connection to long at a time. Works well if u hold for 10s at a time for a total of around a minute. 🎉 Love how these sound so really happy Iw got them going again ✨🤙🏼
Fixed my issue. Took a few goes to yo get Battery volt up( no meter) keep trying!!!
Still not impressed with how often a premium product having such a common problem.
Does anybody know which hole is positive/negative? I want to try without taking it apart first.
Perfect. Thanx a lot Alex. My first pair of MTW3s were replaced under warranty because of the dead L earbud. And i was strugguling with the same issue with the newer ones also. 350-400 bucks saved.
THANK YOU !!!!!!!!!!!!!!!!!!! 100% fixed !!! Left side stopped working after just three months of use!! I was going to throw it in the trash because Sennheiser's technical support in Brazil is terrible!! I bought the left side on EBAY for $80 (include postal service ) but when it gets here, I'll have to pay another US$80 ( Brazilian extortion tax...!!! ) US$160 for left side only. I should have tried your repair before buying the left side!! It will be kept in backup 🙂
Hallo @OctavioPessoa2009, I'm also from Brazil and I'm facing the same issue as you faced.
Are you from São Paulo Capital? If yes, have you tried to use the Technical Support from here? I'm having the same issue for the second time and I really want to test this solution from Alex V. I'm just not so sure if the warranty is already expired, I need to check with them, but seems to be impossible, due to the fact that they don't even hang up the phone and the e-mail seems to be wrong :(
Did you use 3 Batteries AAA in parallel as in the video? Was it easy to do?
Thanks in advance :D
Hello ! I'm from Rio , and yes, its IMPOSSIBLE to contact technical support, they don't respond email and phone I give up! If you bought your tws outside Brazil ( my case) there is only a 3 month warranty. If
you bought here, (with Sennheiser Brasil) It has a two-year warranty...... but its impossible contact Brazilian tech sup! I use 4 AAA and its very easy !!! Just follow the video 🙂 @@AndrewAoyague
Hello :-) I live in Rio. It's impossible to contact Sennheiser support Brazil, no one answers the phone or responds to email., If you purchased from Sennheiser Brazil, you have a 2-year warranty, otherwise, only 3 months. About video repair, its super easy !! i use 4 AAA batteries in parallel just follow the video 🙂@@AndrewAoyague
@@OctavioPessoa2009 really nice to know it. Did you take around 5V, or less than that? Or even high? I'm a little bit afraid to use the wrong value for the power supply tension and then loose my phone, even thought it's not working at the moment :(
Was it easy to open it?
@@AndrewAoyague Charge between 4.5 and 5v,. To open, you won't be able to do so without first heating the edges. use a hairdryer for about 3 minutes to soften the glue and for close , you won't need glue :-)
Great job bro. But i’d rather return mine (both not working) and claim warranty. Thanks!
Are you based in the US? How long does it take for them to fix it and ship it back?
Thanks man, really appreciate it, 250 bucks saved, what a shame for sennheiser, but what a sound they deliver. From Latinoamérica, it worked. It was hard to turn it on, but finally, GOT IT!!: No need of multimeter= just if you have the same model as in the video. Just + & - cables, 3 AAA and try!!! I am very happy!
what a piece of junk these things are. left em on a shelf for a year and they dont even turn on anymore, but they show as charging on the case.
Yea same thing thats happening with mine
Mine same but only for a few days
Same thing.....
Same
Same
This worked , thank you! Used AA batteries. Sennheiser needs to get their quality under control. My mw2s did the same thing
Great work👍 Agreed, they should change us new SMTW4 indeed 🤔
@@alexv3311 CONFIRM & TOTALLY AGREE
You are a legend. Fixed it with your hack, was worried since I didn't even have the warranty and I had bought them literally 4 months ago. Would advise people not to buy this.
Appreciate it bro used 9 volt battery to charge the 2 buds after one year of not using now it’s back to life big thanks for you 🎉
Is it safe to use 9 volt? I just bought one used and the right one is not working.
Can I also charge it without opening it?
@evanqashanna3447 no you can't charge it while close. You need to open it and it is very safe to use 9 volt I did it that way 9 volt red and black wire from it and did like the video said same poles. You need to reach charing of 3.5 or 3.6 of voltage then put it inside the case and it will work. Mine was dead for 1 year and suddenly saw they video and I did it and wow it working. Spend 3 mins 4 mins till the battery reach 3.5 volt at least.
@@alidaalah thx for the fast reply! Will definitely try this.
Just one more question how did you open it?
What did u use to heat it?
Thx again
@evanqashanna3447 hair dryer but put it to high hot air use it for 3 mins then carefully try to open it. After you finish fixing it put silicone the same place the glue was to seal it thanks.
It worked for me and now my earbuds are working again!!! Thank you very much for this!!! The earbud batteries are not charging up to 100%, they remain around 80% to 70%, but I guess this is another problem. Such a shame that this phones got this huge problem! I enjoy their sound, but this unreliability made me switch to Airpods Pro 2.
Awesome. Used a 9v battery instead. Easier to charge with alligator clips too.
Thats Amazing. You saved my sennheiser with this video. Just use adapter with multiple voltage with below 5 volts and it works again. Marvellous. You are life saver. Thank you very much, sir! ❤
Great stuff! This saved my second pair (which had been already a warranty replacement for the same reason). Unbelievable what the engineers did... Just forget to put them in the charger for some time and they die!!! Shame on Sennheiser for that, which is particularly sad because they sound really great.
thanks! Used 5v from a cut USB cord and it works again!
you're a godsend. I really was not looking forward to having to go through the warranty replacement process... again 😂
despite its negatives the internet is great because of folks like you who share their knowledge purely to help others.
Thanks to your video I solved it, the right earphone was no longer charging, unlike the video I improvised with a cable to charge the Xiaomi smartband, the contacts matched those of the earphone battery so I tried, the first test failed by heating the battery but it continued not to charge and work. On the second attempt I noticed some small shocks and I feared I had reversed the polarity so I tried again by reversing the side and after this attempt the earphone started charging correctly again, thank you very much, you were a great help 😉💪🙏👏❤
Thank you for this! I was doubting that I can do this myself but it WORKED! I’m now having slight trouble in holding the earpiece tightly with the case. Anyways, just wanted to say Thanks!
You saved me returning mine to sennheiser with this video. Thank you very much, sir!
I like it, thank you. I will have to try this. It looks very promising.
I really appreciate you putting this video together.
Mine got fixed today by using this tutorial. Just make sure the volt of the earbuds must be atleast 3.4+ so it can continue to work in the charging case. If its only 3.3 below it will just show red light one flash. No blue and green. So glad this tutorial existed
@@martinlouis4492 awesome, thanks for letting me know. I'll post my results when I get time to do this. 🙏
This tutorial is really the way to fix this common issue. It’s awesome, simple, but pretty unknown. Hopefully some more people will try and be fine with it :)
this worked like a charm..thanks so much champ!!!!
this is a major flaw on Sennheiser part
Thank you so much !!! Now my earbud are working again ... Salute from Malaysia 👏👏👏
Awesome 👍👍 From Sabah 😄
hi, nak tanya, pakai apa yang cable tu, sebab tak jumpa nak beli?
From kl malaysia too. Anyone kind to help to fix mine?
Just fixed following the exact method. I purposely bought one multimeter from Mr DIY yesterday to fix the problem. When I refer back to your video, only I realised it is exactly the same which makes it much easier as I am not really an electrical person. My left earbud was about 0.8 V and I charged using A23 12V battery.
It works , thanx, left was all dead and ad 10% but made no connection , no lights , but now it turns on again and make connection and play sounds , for now it only charge to 80% but I let it on the power for a while to see if it goes up till 100
Awesome 👍
This was the fix I needed. Thanks! Worked like a charm, though I had to charge it for about 3-5min before I got high enough volts for it to turn back on when put together. 0.7/0.9vDC on my buds though. Were in storage for about 8 months.
This worked for me. I used a 9v and juiced my earbud for a minute which got me just over 3v on the earbud. That was enough to get it to charge in the case. I got the earbud housing open just by gently prying with my thumbnail. Awesome video. Thank you.
Thank you so much!!! This worked perfectly!! I have no idea how you found this out and I am an electrical engineer
Thank you very much Alex. Thanks to you, I was spared the expense.
Thanks a lot @alex V . Sorry I don't know you name. The steps worked wonders. It fixed my headset. Right one had gone dead and this was a replacement set that Sennheiser had sent me against the flawed momentum 1 that I had bought
BIG BIG THANKS! Keep making such helpful videos.
This fix worked successfully for me.
However, three weeks after I asked for help from Sennheiser they came back with this:
• Leave the earbuds in the charging case for at least 30 minutes.
• If the battery is deeply discharged/the LEDs do not respond after half an hour, put the earbud in the case for 10 seconds, take it out for 5 seconds and repeat the process 10 times to reach the low charge threshold to overcome.
It's too late for me to try the approach of repeatedly putting the earbud in the case for 10 seconds but it might save someone else from the hassle of dismantling their earbud.
I hope this works cuz I'm well past 10 times now, and the fact that the case gives out orange pulses makes me hopeful
Not working :(
After 2 years, my left earbud was "dead", no LED light, no connection. I tried unpairing and factory reset (see the TW3 manual for the method). I had put on a larger rubber ring, and maybe didn't get it set into the charging case correctly? I pushed down on the two power contacts in the case, wiped the bud power connections and the case connections with a paper towel, and set the earbuds back in the case, plugged in USB overnight. They both work now!
This video is amazing. Thanks you so much for making this video. Eventually my momentum 3 wake up again ❤
Great video, thank you! I had the same issues and fixed the problem exactly as instructed. However, I think I might have put too much "heat" when dissembling, because now the upper part of the casing is going out very easy. Any suggestions how to fix it - should I use instant glue or is there another way?!
Thanks SO MUCH Alex!!! Ive Just brought my left earbud back to life thaks to your instructions😊
I didn’t expect to have to do this to a pair of earbuds costing nearly £300 after only 13 months, but it worked a treat, thank you. What glue would you recommend for holding the case together afterwards?
Thank you It worked!!!!!!!! Both ear buds is working again !!! But its not sealed its loose what did you use to stick it again sir?
@sennheiser pls fix this issue your product is expensive yet your product is like china made but with good audio quality. Poor QC ypu should fix this. This is the first and last sennheiser product that i will buy.
Tesekkurler Alex.Garantisi olmasina ragmen denedim ve oldu.Memleketim insanina;Ben urunu isitmadan hafif cevirme yoluyla kulakligi actim.Ayrica ici videodaki gibi karisik degildi.2 ucu goruyorsunuz oraya 1dk voltaj verdiginizde uyaniyor kulaklik.
Thank you Alex.
Mükemmel 👍
Thank you for this fantastic instructional video! Saved me a trip to the service center. You're awesome!!!
You're awesome too 👍👍
hey, thanks a ton for this video! i was about to give up on my sennheisers, but your tutorial totally saved them. appreciate the clear and easy-to-follow instructions. You’re a true hero!🍻🤜🤛
I sent mine back to the manufacturer. Hopefully they fixed them.
Alex thank you very much. I sent it to warranty when it happened first time and it took 2 months to send a new pair of them. But it happened after 4 -5 months later again. So I tried your solution and BANG it worked!. Only issue is it repeats once a week and have to do it again :(
I WANT TO THANK YOU FROM THE BOTTOM OF NY MY HEART FOR WHAT COULDVE BEEN A $200 WASTE OF MONEY ❤
But serious talk, why did this happened at all? Is there a preventative action? Like, not leaving earbuds out for too long? I dont understand why this happen.
I'd also like to know if there's a preventative step we could take, besides manually checking the charge levels every 12 hours...
Worked a treat. Thanks for the time to post this.
I hope you see my comment. This worked for my R earbud, but it lost touche control and now I can't pair my headphones. Please help 🙏
God bless you man! Thank you very much for sharing this solutionn
Welp, just used this video and a hacked up USB cable for a stable 5v supply and jump started an earbud successfully (if a little too melty for getting too close to that heat gun). So thanks!
Very simple and working instructions! Thank you =)
Welcome 👍
Just done this to mine initially 0.71vdc 3x aaa batteries taped together and shock charged to 3.6vdc and this bought the left bud back to life 😎
Awesome 👍
Thanks to you, I was able to re-animate my TW3 and also even older TW2! Amazing guide! Thanks!
can do this through the charging connectors on the earbud instead of taking it apart? If so, which is positive and which is negative?
Great video! Thanks for helping me fix my right earbud!
Amazing video, thank you so much! You're a life saver!
Awesome 👍👍
man, you made my day. I tried it with my Momentum TW 3 and it is working like a charm. I didn't have a setup to connect 3*1.5V batteries serial way. I used my power bank to do it which I was sure about it produces 5V and 4A.
After applying the fix, I also want to say something for Sennheiser. It is totally a bullshit! I've heard few things more ridiculous! So far, I was calling myself as an engineer. it is my profession. but I'm not anymore from today on if the system designer of that product have been hired with a fuck'n engineer title!
Thank Alex, It can fixed without remove the cover?
Great video man :D
Could you please do a video about replacing the battery when they finally died or stop working ?
Which battery should one get that suits the MTW 3 ?
Sure.. I don't have the tools to replace the battery yet.
@@alexv3311 okay what kind of tools/ toolkit would you recommend ? maybe i need to order the same...
Appreciate the tutorial worked for me 🙏🏽
Awesome 👍 Good to be back 🎧
I have the same problem. Both of earbuds just stopped working. Last time they were pretty low and I didnt charge them for days and now they do not react at all. And these are my second earbuds that I am goind to bring back...insane..
Ohh man.. it worked. Thank you so much
awesome 👍
Man you just saved me so much money, it really works, many thanks!
Welcome 😁
Great fix! Worked a treat! Thank you!
And Sennheiser, get your act together.
Or is this even part of the design? Hmmm…
These headphones are junk. So many how to fix them videos out there. Why not just make a quality product
Man, this was a life saver! Thank U!
Welcome 👍
Men, it works.
Subscribed
Awesome 👍👍
Aww man.I threw mine away thank you for figuring this out!
I'm about to do the same 😬
@@alexv3311why? you fixed them, right?
@@alexv3311did it stop working again?
Thank you so much !!! Now my earbud are working again,, it really works:D
Awesome 👍
Hi. Thanks for sharing. Will this remove the water resistance in the earbud? I think yes because the glue was removed. Do you think we can glue again to keep the water resistance for the earbud?
Is this permanent fix or only for next discharge? How long this fix can last . . . ?
Went on holidays for a week, when I came back the left one won't work. Is there any way I can bring it back to life without opening them?
I returned mine,and I got a new pair.1 or 2 year warranty
Great 👍👍
Same to me - left fully dead. Returned. Very disappointed with Sennheiser
Awesome ! That worked ! Great video bud !
This tragedy happened to me today. Still under warranty. I am able to DIY and fixed the charging problem according to your advice
Shall never buy any sennheiser products and highly not recommend to other music lovers
It worked!!!, 🎉 thank you very much!
What did you buy to fix them? Is it any battery jump starter. Also where would you buy a case where you just plug in 3 triple A batteries
Thanks a lots. It work and save my both earbuds.
Awesome 👍
Also works with a 9V battery
Good to know! 👍
you are a hero
Thank You!
I was able to ressurrect the right bud, but the left one will not work. Is battery replacement an option?
Excelente ajuda... considerava meu fone perdido e sua ajuda em compartilhar a informação foi ótima . Obrigado