s7 Black screen - Customer needs photos - BGA Chip soldering Mistake
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- Опубліковано 7 чер 2022
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Who else wanna see the followup video on this? 👍
Me oh yeah
Me too
Yes please
Me👍
@@advantageatul Me!!!
I love this guy, true and straight on the face. Fix or no fix doesn't matter.
yeap why i like him honist,, obviously nothing to hide, im a engineer you can learn alot from other engineers, its nice, i watch his videos when ever new ones come out,
alex is the man,
Honesty is the best policy after all
It's crazy that I sent this customer to you and a video popped up! I couldn't fix it so I figured her best shot was with you. I'm glad she actually followed through and sent it to y'all.
It's cool to see repair shops sticking together :D
We appreciate that you show the no fixes as well. Excellent video.
Thank you for showing your mistakes! I respect and appreciate your honesty!
I wish you could please show your data recovery procedures as well.
Thank you!
Awesome video as always! So glad the markers are working well. Thanks so much for taking the time to mention them again even. Many people commented on my channel about seeing you mention them! You have helped my channel greatly! I really appreciate you and your sharing! Thanks and God Bless!
Samsung phones are super problematic which is why I don't do samsung at my shop, no matter how good you are the issue may be something super out of the blue. Respect your work Alex. So Glad I met you two years ago. Thanks for the free Tshirt Northridge Fix. I still wear it.
Hello Sir,
I always have a huge pleasure watching your videos, you take the time to explain your diagnosis, it's very appreciable!
In addition, you light my lantern very often, I don't come from the same field.
I come from transport and I have changed direction for more than a year.
Today, You have just explained a principle that is not easily found on inductors: they cannot be zero.
And to understand a short circuit, it's important. I learn alone and you are one of my main sources of inspiration.
Thank you again for sharing, hoping that we can still benefit from your knowledge and experience.
Thank you very much.
Sincerely!
Ceddine from France 🇫🇷
Excellent video Alex, as usual. I get excited when you post something new. Thank you for your services.
Looks like that max chip is a power management IC, handles high power leds like the backlight, camera flash, and some charging functions. Good memory!
The give-away is how it's surrounded by capacitors and inductors.
a true technician shows it all…he is still the best!!!!
A good example of how knowing what the components are used for can help you find problems. Alex knew that inductors are not used with a connection to ground at all times, and so was able to find a fault.
Very valuable soldering information. Thank you for teaching us.
Really nice to see a video about bga fixes. It's something I'd like to learn to do but not a lot of good tutorials online. Often using expensive custom tools
@@MattyEngland cool I'll look it up. Thx!
Bueno, bueno, bueno, menuda lección de reballing, microsoldadura y material para hacer esos trabajos. No dejar de sorprenderme... ahí se aprecian muchas horas de práctica. Mi más sincera enhorabuena.
Notifications are on, thank you for another video. Much love and keep it going.
people have no appreciation for how small those parts are, the tiny resistors are the size of a flea under the microscope. BGA was just starting when I was a bench tech, back then as a ISO2001 certified tech I could remove and replace an IBM 601 processor on an apple motherboard in 15 minutes from the IR fine pitch removal to hand soldering the 255 pin processor back on the PCBA. This guy is amazing considering the parts are as small as bugs on the PC board.
great work Alex and great catch with the reflow.
Nice video, my dear brother never give up.. you are motivated to us too. Sometimes I feel hopeless moments at work but your videos strengthen my mind to move forward.
Thank you...
Your soldering skills are next level
Great bro if someone is not successful it doesn't mean he is unsuccessful it means he has gained something extra from the work I like it very much i always learn something extra from your knowledge good luck 💞💞💞💞💞💞💞💞
I am also a mobile technician from India 🇳🇪 i regularly watching your videos to gain something extra and remember one thing Knowledge is the only thing you get more of by giving it away god bless you 💞💞💞💞💞💞💞💞💞💞💞💞
Thanks again for another video. Nice work.
I always wait for Alex video. he is very intelligent with sharp brain 🧠
even a no fix help me a lot!
i am only struggle with no backlight ;)
good bless you and your related!
Very good work. I love to watch your videos after my work it is so relaxing. Amazing. What about a second video when you got the display? Would be so awesome. Greets
I can't stress enough how important it is to maintain a schedule of backing up data on all devices (computers, phones, tablets, and so on) that store data. I use a Wondershare product to back up my phones & tablets and there are other products available for this. A hard drive is more reliable than an SSD for extended storage times and never ever leave the backup hard drive connected once a backup is completed. Store that hard drive in an inexpensive fire-resistant lock box. With this protocol, I haven't lost data when using this system in the past 20 years. I keep my master data on one main computer and copy that data on to two other laptops for safe keeping. I then periodically back the main computer's data to the hard drive a couple of times a year that's only connected while backing up data.
That's why I root all my android phones.
Titanium Backup backups easily
Excellent as usual.
I think it's fixed but u need to try new display the old one maybe damaged from the faulty max chip but even if doesn't work you did an amazing job
You the best always thanks Alex❤️
Only honest men show their mistakes in slow motion. Lol. I like you brother. 👍
You are a very loyalty person..im from sri lanka.
I had that exact phone and when powered off and plugged in it would show charging even without being booted up so I would guess that you're right and the screen is bad. Would definitely like to see a follow-up on this one.
Well done, thanks for sharing
hi Alex, the last three videos have been very interesting but without a happy ending. it would be nice to know how it ended . 😀
Good job mate.
finally..showing up after a week.
The anticipation at the end! 😂
Fix or no fix its the positive attitude.
Nice work
First like and first comment amazing job as always well done huge fan here keep it up brother ✌️✌️
I learnt far more from your honesty, saying you might have touched it from above, that any editing it out could have possibly taught me.
I’d also take the fact that the franchise owner sent them to you as a compliment.
Wow you actually read the comments. From what I know it's actually bad to read. There's a lot of trolls that talk bad for no reason than to be a troll
Mad skills!
Hopefully a part 2
I think these phones along with the s6 range are a technician's nightmare because they just die all of a sudden. Would love to see if this particular one can be fixed. Useful video by the way 👍
My s6 died all of a sudden.
@@chongtak I am not surprised 😂
Good job
Ur great work sir thanks
Nice explain sir👍👍👍
You should keep a mirror next to you, every time you repair something, look at the mirror smile and think what a great job we did😂
The chip shorting out could have killed the original screen. Obviously you fixed a dead short, so probably a bad screen!
If the batt is flat it can take few minutes before you can turn it on.
Nice one
"What can you do?"
THAT'S the tee shirt you need to sell. :)
It's really interesting to see you try to do the impossible !!!! A lot of your repairs have been abandoned by other repairers !!!! I would be throwing the phone out of the Window !!!!!
Thanks for video sir
👍👍👍thanks for sharing
If the battery voltage is less than 3.5 (3.8) phone will not charge and also not turn on you have manually check the battery v bat
May be you need to boost battery،☺️
That's the first time iv seen that technique, of holding a small piece of solder wick with the soldering tweezers like that. I will remember that one.
According to him, he started it on UA-cam
Hi. Can you do a quick tutorial on hot air station temp settings to remove smd components? For beginners like me...thanks and more power..
I think i posted this before but the REL button on the meter will automatically factor out the resistance reading from the probe leads and display 0. Also are you sure those silver pens are not conductive? Might be worth a double check.
No squizy on the MAXy 😁
Best tacky flux ever 😉☺️that cleans easy leaded or unleaded ☺️
Always you have to wait more time because if the battery is a lot of time uncharged he needs more time to wake up the battery.
True
I'm just wondering, can't you shine a light on the screen and see if it's just a backlight issue or is it not possible? I know you can do that with LED TV's.
S7 has an amoled screen from what I remember, so there's no backlight.
@@NanoMine aha 😀
nice Vedio ☮️👍
Nice fix i have a similar issue on a samsung phone too
Awesome ✌🏻✌🏻✌🏻
Try to look into the display using focused torch and see if LCD on and will indicating backlight issue.
I think It was a amoled display
@@exiledroscheat10 yes, super amoled
So Alex you do make the odd 'Fubar' 😎
Do you recommend this technique for a new PCB i.e BGA reflow on a new pcb board.
It’s amazing how you can remember 1 of thousands of jobs from 2 years ago.
A few years ago something similar happened to my Galaxy S5 black screen caused by a drop, I didn't want to pay for a ney dispay, buy a new one is cheaper, when connecting the phone to the PC it was recognized and gave access to everyone the files that were successfully copied to my new S9+.
Can we inject voltage in the "faulty" coil and see any heat under thermal camera?
I was waiting
U can plug the Samsung android devices into an external display via usb c to hdmi. Samsung Dex software is built in for this
Use a straight through cable not adapters for best results
Its been long time you've working on bga chips thats why this occured
I hope there is a continuation of this video what actually happened
شغل حلو يعطيك العافيه
I know you have been very busy handling the entire shop alone. I have a forum question about "Difference between backlight diodes JH, D4 and V3?" I have added some pictures as well. Hope you find some time and answer it. Thank you for all the teaching you do.. I was able to safely open iPad Pro 10.5, swap screen, touch id, camera and a working motherboard. I basically took 3 broken iPad Pros and made it into 2 working ones. Thinking to order diodes, coils and learn micro soldering on the defective motherboard. I got back all the money I made as investment and this broken motherboard would be free to learn spare part.
Sir did you ever use that liquid solder i have seen many videos people use that to connect resistance capacitor
big fan.....
I've seen screens not come on if the bat is completely dead. I had to use a more powerful charger than what came with the phone. And just leave it sit for awhile.
Some phones need the back frame (which can have traces) put on to see a result. Did you try that.
maybe you can buy an Otg or Mhl cable and check if it works without a screen plugged in?
hold down volume down and power butten at the same time for 10 seconds normaly brings the screens back on or try volume up and power and home butten
One is never too old to be a kid anytime.
hope u update us after u replacing the screen
I hope you'll do something else in the next video :)
Hello what temp you using please to extract the chip 380 C ? thank you
Hi do you fix VR headsets like the hp reverb g2 or oculus rift s or oculus quest 1/2 ? regards
Your no fix nintendo switches, were they GPU/CPU issues? Had a Nintendo Switch Lite today that had low ohm readings to ground around the MAX IC. Replaced the IC and still low readings. Removed the processor and the low readings disappeared. Deemed it a no fix as a processor issue. Was curious if yours was the same?
Have you checked the conductivity of those silver pens when marking things ..
The mark got cleaned off by the swab before he even got the new chip in place. But a search suggests it isn't conductive.
@@Mueller3D Ok last time i came across any of that stuff it ran at about 10K ohms per 5mm
@@petenikolic5244 I found a silver Sharpie and tried it out just now. Even with it very thickly applied, I could not get a measurable reading at any distance.
@@Mueller3D Ok maybe the sharpie has found a non metalic formula usefull
Where do you place the negative probe of the multimeter?
I want to see the update of this repairing
I have the same issue with a Galaxy A40. Replaced the broken display two times with parts from different Vendors, nothing changed. Could it also be the power managment IC?
Alex Maybe we can see the fallow up video as a yt short video :)
Always saving the world of complains
How to see the difference between a coil and a capacitor
We're you able to find a screen? Did you get it to work?