Lenovo Yoga 370 - motherboard repair, a tricky one
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- Опубліковано 28 сер 2024
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This is the reason why physical inspection is so important.
I respect your honesty Sorin. Most technicians would not admit being tricked by the capacitor on the other side of the board.
Thank you Sorin! I’m learning so much from your vids!
When you are repairing,it is like we "Electronics projects" are also doing so,its more like we are in the same room.Thanks to UA-cam.
I have the exact same conditions and have torn down the same as you illustrated. I’m missing the actual repair/part replacement. Same computer, exactly the same conditions. I’m just stuck now at the physical repair to be done. Thank you for sharing your knowledge.
I'm learning a lot from this guys. Thank you so much for sharing with us your knowledge.
I remember I had a similar case to repair but didnot find any dual mosfets as replacement... As a result I used 2 single n channel mosfets connected with wires... AND IT WORKED JUST GREAT.
Hi Sorin, many thanks for all your instructional videos. I have a small PC repair shop in south Manchester and now feel cofident to do some component level board repair thanks to you. I have just had exactly the same problem on a Toshiba laptop I bought "spares or repair" as I needed some other bits off it to fix a customers laptop. I even have a thermal cam to help me identify the hotspots on the board. I was practising on this board to see if I could fix it and removed a capacitor that I thought was shorted. Seems the issue was on the other side of the board and now I've learned to take the board out and check thouroughly!
Se poate întâmpla și maestrului!
Multe mulțumiri pentru că ești inspirat de mine și de mii de alții.
Stai in siguranta.
Salutari
Jed
You’re so lucky Sorin that you accidentally touch that mosfet at the beginning other wise such fault may take a longer time
Nice job Sorin
Soren, thanks for the videos! I am learning much from your instruction!
Thank You Sorin, I suspected a short soon as you replaced the mosfet....
you should have know.. remember it IS Monday! That was fun.. I can not believe your friend doesn't know anything.. even I have fixed two laptops just from watching your videos.. and I had never even opened a lap top before.. Though I know a tiny bit about electronics.. I have a desk top myself, lap tops make it to easy to get lost in the internet along with cell phones... I do not have them either.. Well thanks Sorin.. as always a learning and entertaining video.. Carry on!
This is a very cute Thinkpad.... I might pick one up someday as my replacement Thinkpad
The Lenovo Yoga has its power button on the side, because its screen can be turned all the way round until it touches the down side of the laptop. It has a touch screen. When folded like that, the keys on the keyboard retract and/or turn off and the unit will function as a tablet. In tablet mode, it is more convenient to have the power button on the side.
The 7 in its model number indicates this model was released in 2017. So this unit is max 3 years old and already one of its caps shorts out. This is unacceptable but unfortunately we see it everywhere in the electronics industry. Parts are engineered to be as cheap as possible. Lifetime is no issue. Customer is supposed to just buy a new unit if a cap dies.
You are amazingly brilliant! I think you are my long lost Dad. 😁
Thank you for your great work. you are someone who does good work :))
Sorin, why dont you open your own shop? You become the boss. You can take monday off anytime u want. You are a pro.
Check this old video , he explain why . : ua-cam.com/video/ZIdqkOAVMjA/v-deo.html&ab_channel=Electronicsrepairschool
Thanks Sorin, this was very informative.
Thank you M.r
i realy learn a lot from you're videos. im from philippines and i want to ask a silly question about the laptop capacitor, is it realy ok when you remove one capacitor and the laptop would be revive without replacing it? is there any down's and up's for not replacing the capacitor? im not and electronic but i want to learn from watching videos like this. thanks in advance for who ever answer my question it will be a big help for me.
many thanks, sir .
Great job
I was stuck after replacing the mosfet I thought what you do next?
Noks off the cap and go😂
Bless you, for soldiering on.
Of course I'am here because i love your videos.
You need a thermal cam master Sorin!🇬🇭🇬🇭🇬🇭🇬🇭🇬🇭🇬🇭🇬🇭🇬🇭🇬🇭🇬🇭
Same spot on one of my cases with this one. Same cap. Found with bench PSU.
Sos un maestro Sorin, gracias
Techs at our place won't fix issues like this one but would recommend to replace the whole board.😂
The whole laptop,the car and the house
@@MindYourBusiness1970 For real. All they do is plug the computer to their diagnostic machine and replace whichever part doesn't work properly.
@Dr.Stark where do you live?
@@panic4875 Yes,and a lot of customer's are happy because It seems a quick way to solve the issue
I only recomend replacing boards to clients in cases when I don't have necessary components to do the repair(usually a long waiting time to get them or lack of availability plus untrusted sources) or there are none new available or in a case where there is no guaranteed supply of working ones. That case is often in failed PCH on older intel platforms, sorry but getting a new PCH for sandy/ivy or haswell is almost impossible or cost of just the chip in worth more than whole unit that came for repair. Yes, donors are usually dead too. A lot of work to replace PCH to make working units is too low(probably made that sentence very wrong, ratio is just bad). I have stopped doing certain jobs on motherboards because I was wasting time and clients weren't paying for them. Last time client came with messy gigabyte aourus laptop. Done diagnostics and some smaller jobs to fix mess that client made it turned out that client's doings and decisions just killed the board. He then returned and went out in rage and saying harsh words to me because I didn't want to repair a board which he made a total mess off. In a short he came with laptop that missed all screws, board was bent out completely because he shoved thermopads 3mm thick between CPU and GPU die, he destroyed even screws for the cooling from forcing them and all of it was a puzzle mess, everything was dismantled and shoved in a bag. Assembled it, tested I have decided that it wasn't worth to fix bent multilayer board and probably it was wiser to get even used but working one. I could replace the chips and probably he would later come back to me that I didn't do the job properly and he overpaid. I have fixed yoga like this. It turned out that one MLCC cap was shorted out on main supply line and I know it still works after the fix ;) Some cases are more than fixable, some aren't just worth it. Yes, you can. You can't do them cheaply.
Always nice to watch 💯
Really hard one! Thanks a lot.👍
Thank you Sorin , but why we don't change the faulty capacitors ?!
شكرا لك
Sir I'm your biggest fan thank you so much for the videos i learn a lot from you. I just want to know about desktop motherboard systems about power always in and other if you can make videos that will be great thank you again
Wow an odd one . Well done Sorin . : -)
thank you for you videos !! you are so skilled!!!!
we know that
I wish I can give you my Lenovo yoga 370 to check what's wrong with the motherboard, I'm really heart broken as I can't afford a new laptop for my studies
THANK YOU
I have been watching your videos for about 2 years. I love watching your videos. I notice you using phoneboard in one of ;your videos.I am wonder how you get component description to pop up in the white box when you click on a component. Do I need to download an additional software to get the description I box on my phoneboard.. I have Phoneboard V1.90. Would love to be able to get the description box on my phoneboard. Thanks for the many videos.
Thank you Mr.Sorin
can you make lesson how use HotAir
i like that to, a lesson using it. since im an newbie in this electronics stuffs.
Sir, can u explain on paper the most common things we may notice when an onboard processor is short or dead? if u get time
You did jump the gun and didn't check for odd resistances when the mosfet was removed.
But that dead cap heating the mosfet has to be a one in a million chance lol.
But it's fixed :-D
How do you know that mosfet was the same spec as the other one? Just from experience? and why did you not replace the capacitor, surely its there for a reason
The mosfets on the motherboard handle 30V 20A, they all have to step down the main voltage (19v) to 5v 3.3v etc. so if its part of a buck converter they are compatible. (you can alway double check on the datasheet). The capacitors are filters, you can see that they are connected in paralel, so it can work without one of the three.
@@steelasd8097 I hope the manufacturer has watched as they now know that they don't need to fit that capacitor.
@@twotone3070 I hope they watched, and use better components.
sir, i had a desktop mother board just day a go it shut down now when i press the switch it make the cpu fan to move little but can run and a sound little like click sound type come have no burnt and fan try to move on the opposite direction little what could be the problem. if kept for one day and trun on it work like nothing happen and when restart same thing is it mother board rip sir. thank you
Big like sir 👍I am learning from you
Sorin i love your work and i can't thank you enough for your hard work and desire to teach!
Why u use petrol? is that zippo lighter fluid? doesnt it damage the board?
yes and no
Watched Gamer's Nexus channel on Sept 20 and saw Jim from Bearded Hardware set a record on overclocking a EVGA 3080 card to 14,069 on 3DMark Port Royal using liquid Nitrogen to -192c.
Bots on eBay are bidding up the prices on the 3080 cards that the sellers may or may not have. This is so they can not scalp the cards. Check the stock of the cards as they are being replenished and more stock should be available in October and November.
what did you do to fix it? i see you found a bad cap and just left it in and it came back on? Thank you
he removed the cap at 25:36
At that time something happend to the video, but he removed capacitor.
I have some problem with one Lenovo. I don't understand what was the problem. Thank you
Tricky one indeed
Hi, Sorin. Thank you for the videos you have been making. I wonder if you have ever had to replace a soldered RAM. I have a Lenovo Yoga 370 with soldered 8gb RAM which I would rather was 16GB at least. Is it possible for me to upgrade it? Would you advise it?
This could potentially be possible. You would need memory that is double the GB per chip that is the same speed or faster unless there's more empty memory IC pads available. You would have to modify the firmware & bios to recognize the new memory also. If there is a model of the Yoga 370 with 16gb that comes soldered your chances are way higher because you can use the firmware from that model if not someone would have to make it custom which may not be possible. There's been a few articles where some shops modded 8GB GPU's and put 16GB with custom firmware.
was there any reason why you didnt replace the capacitor with another one? i am just getting started into repairing electronics and finding your videos really useful. Another question as i see alot of simply taking out mosfets and shorting them out, how do you know when its safe to do that?
I like the starting and the ending of the video😀goes dim
I would like to see you fix graphics cards
for PC!
To us,it was possible to fix briked Nvidia card, picked out eeprom and reprogrammed it and it was back again.
Please can you help? What is the petrol you use to detect hot spots? What do I buy? In your opinion what flux paste is best to buy? Thank you
hi where is the bios chip located on this board please .. is it at u 49 location
Do you really used petrol which we use in car for chips heat testing😀
Sorin, are you still vaping? Haven’t seen you do so in a while !!!
I'm trying to short the security chip. Where is it located?
Amazing
Nice one
Have you ever done repairs on qnap network storage box, not PSU related?
respect ....
Sir which type of laptop is more long lasting with GPU or Without GPU ?
Morning sir,I have issue with a Samsung note book motherboard.the laptop is charging but not powering, 3.3v is present in the bios and super i/o but it is not present in the power button.pls tell me what to do.thanks
hi dear. how i can reset BIOS with CMOS on Lenovo Yoga 370?. i have this laptop but i forget the password.
Sir i have loptop here asus that it charging but it wont turn power and also the wont spin so montherboad X541NA 2.1
That mosfet is lost @ 27:14
Plug in the charger! Take out the charger! Plug in the charger! Take out the charger! LMAO! 😆
That was a crazy coincidence
Got mr. Hotglue ringtone... It's: radiate from apple ! Nice..so easy to get tricked.
How to know and identify dual mosfet? pls tell me no sign in Mb dual mosfet
yeah, the 3080 launch was a joke, I was trying to get one too. It sold out in 2 seconds, damn scalper bots.
Hopefully will not be the same with 3090
@@electronicsrepairschool Hi sorin pls send me usb meter name link
i am happy
lol
Hello Sorin. I came across your videos when my laptop became dead while it was running. I took it to the repair shop and the engineer said my laptop is beyond repair. Is there any hope????
always hope.....always
@@groovejet33 actually I took it to three places. And everytime each of them said the same thing. 😭
@@MohsinKhan-sq6dq Same dude, every tech at our place won't fix issues like this.
how do you know what smd components are suppose to have connectivity or what is not suppose to beep ?
see his other videos first as this is too advanced for you
I want to know how to check a mosfet properly
Lenovo Like a heart that stops beating, it needs an electric shock to beat
I need my phone fixed...what is his shops name?
People setup bot accounts to instant buy RTX 3080 straight away, it was sold out in 3 mins !!!
I have lenovo x370 death, can you repair my laptop?
Sir i need your help i have lenovo 100s 141br mousepad and keyboard not working and i seen your video but my battery is internal what i do just open it and reconnect it???
ok but first ££$$
Man do u get alot of crappy laptops to fix or what..unbelievable.
👍👍👍
it's very stupid design error to put MLC capacitor right under heat generating component
Dont buy that videocard wait till end oktober then AMD Will come with new processors and videocards. So better wait dont buy yet the rtx cards
Ye, i'm with you , btw, i don't know why they are going for this card like that ! aren't you playing your games with full ? i do that with my RX580... and i'm only waiting for the AMD october launch to buy the new one. don't be greedy people...
@@doublesnake18 I think a lot of people want to finally play games with ray tracing at a decent fps. the 2080 was not very strong at this. I know, I have one.
@@Jan3Sobieski5 rtx 3080 is not so much better with raytracing. Yes, performance with RT are almost double but still that's not even near performance level someone expect with high end gaming PC. We need to wait few more generation for that.
@@Jan3Sobieski5 Yes. at the time of the RTX20 , they were to weak to work properly because of drivers... that was a great lesson. people should never buy a new tech, wait untill they try it, and than you can see if you take it or not.
Well, its a big change with this card, the pc reaction time (latency) get cut in half, this is a big change for fps players
Gud day sir sorin ,,i learn a lot you from, how to return to life on the desd laptop,,can you help me ,to bypass lock-in password in Lenovo 100s BIOS password,i can't reinstalled windows tnx TIA
have you clear the bios? the password should be cleared or return to default
@@PrasetyoMuhammadDwiBiology yeah,but i failed,i can't installed Windows , system password ,it show it again and again,
Put your hard drive in another computer, install windows 10 on it . When it's installed , just put it back in you computer. I used it on a Lenovo T460 with bios password locked.
@@3V30NLIN3 no it's impossible bcoz , there is no HDD it's using 32gb emmc , storage
@@violetabrank7534 yea tricky emmc, have you try power on without battery and cmos battery?
interesting to see you behaving like you don't know where the fault is... anyway good way to teach others.
Sorin was fooled haha
no you are
Looking for a driver an find a capacitor.
👍👍👍👍👍👍👍
Why is tricky?
👍👍👍❤️❤️
Come to Beşiktaş
Noooo, he loves Besiktas... he is good fan of Besşktas.... 😃
More Cool...
You have got me wondering why, if a cap isn't needed, do they put one there? It makes no sense.
Stinkpad eh... I rather have their ideapads they were better when they were IBM.
Hello sir
Kindly want to ask you for your email address or any suitable contact way you find to ask you a question about a problem I'm facing...
Thank you for your great job
simple mistake makes a greater tech
This is comon foul in Lenovo ... :( ... Ol Lenovo broke 3,3 and prosesor . Sorry for my English