s7 Black screen - Customer needs photos - BGA Chip soldering Mistake

[@ershavirafroz8358]

I love this guy, true and straight on the face. Fix or no fix doesn't matter.

[@leewright6101]

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,

[@repeekyraidcero]

Honesty is the best policy after all

[@Flamingxturtles]

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.

[@repeekyraidcero]

It's cool to see repair shops sticking together :D

[@alphabeets]

We appreciate that you show the no fixes as well. Excellent video.

[@hea5843]

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!

[@ThriftyToolShed]

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!

[@Chamussu]

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 🇫🇷

[@canceledcomedy967]

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.

[@tonymantinelli6747]

a true technician shows it all…he is still the best!!!!

[@markharrisllb]

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.

[@mistsemy1522]

Who else wanna see the followup video on this? 👍

[@ershavirafroz8358]

Me oh yeah

[@jryngki5094]

Me too

[@RR-fv2uu]

Yes please

[@advantageatul]

Me👍

[@DjPrimeberry]

@@advantageatul Me!!!

[@yes2cookies651]

Very valuable soldering information. Thank you for teaching us.

[@tiporari]

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!

[@Mueller3D]

The give-away is how it's surrounded by capacitors and inductors.

[@dandanhesourman2180]

Excellent video Alex, as usual. I get excited when you post something new. Thank you for your services.

[@BlazenWinchester]

great work Alex and great catch with the reflow.

[@Sctronic209]

Your soldering skills are next level

[@thomasjinu6923]

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...

[@vicentemontalmontejano1527]

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.

[@myriadtechrepair1191]

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.

[@christopherjackson2157]

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

[@christopherjackson2157]

@@MattyEngland cool I'll look it up. Thx!

[@sunilkhajuria9018]

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 💞💞💞💞💞💞💞💞

[@sunilkhajuria9018]

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 💞💞💞💞💞💞💞💞💞💞💞💞

[@Mybeardog]

Only honest men show their mistakes in slow motion. Lol. I like you brother. 👍

[@anonhollmuller4032]

even a no fix help me a lot! i am only struggle with no backlight ;) good bless you and your related!

[@onyourkilllist6880]

I hate no fixes. I always feel this man will fix everything he touches!

[@christopherjackson2157]

I have a box of old fixes I can't bring myself to throw out. As long as they're still sitting there I can imagine one day I'll finish the repair. A few times I've pulled something out of it and managed to pull it off as I gain new experience (and tools)

[@advantageatul]

I always wait for Alex video. he is very intelligent with sharp brain 🧠

[@rolomaticz5009]

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.

[@dasunirashmira2013]

You are a very loyalty person..im from sri lanka.

[@lightmagick]

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.

[@sk22ng]

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.

[@repeekyraidcero]

That's why I root all my android phones. Titanium Backup backups easily

[@Mila27272]

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

[@walcomful]

hi Alex, the last three videos have been very interesting but without a happy ending. it would be nice to know how it ended . 😀

[@stefanlechner]

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

[@Ouahib]

Notifications are on, thank you for another video. Much love and keep it going.

[@Darren777Au]

Thanks again for another video. Nice work.

[@Ally9696_SocialMedia]

Try to look into the display using focused torch and see if LCD on and will indicating backlight issue.

[@exiledroscheat10]

I think It was a amoled display

[@Dandan-tg6tj]

@@exiledroscheat10 yes, super amoled

[@blaskedryck]

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.

[@NanoMine]

S7 has an amoled screen from what I remember, so there's no backlight.

[@blaskedryck]

@@NanoMine aha 😀

[@atulkotak7068]

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 👍

[@chongtak]

My s6 died all of a sudden.

[@atulkotak7068]

@@chongtak I am not surprised 😂

[@petenikolic5244]

Have you checked the conductivity of those silver pens when marking things ..

[@Mueller3D]

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.

[@petenikolic5244]

@@Mueller3D Ok last time i came across any of that stuff it ran at about 10K ohms per 5mm

[@Mueller3D]

@@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.

[@petenikolic5244]

@@Mueller3D Ok maybe the sharpie has found a non metalic formula usefull

[@spaceted3977]

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 !!!!!

[@onegamer5235]

How to see the difference between a coil and a capacitor

[@viisteist1363]

maybe you can buy an Otg or Mhl cable and check if it works without a screen plugged in?

[@heatseeker3654]

Where do you place the negative probe of the multimeter?

[@temejumbo9794]

Fix or no fix its the positive attitude.

[@ali09gaming58]

Hi do you fix VR headsets like the hp reverb g2 or oculus rift s or oculus quest 1/2 ? regards

[@biomed2341]

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..

[@rfr653]

Good job mate.

[@jryngki5094]

I want to see the update of this repairing

[@richmadrid9563]

is the IC really disposable once shorted?

[@goldfishapps]

On a S7 the battery wont charge inless you add the wireless charging module as it has the battery temperature circut inside. I thought I had killed mine before until I put it all back together and charged and it was just a low battery.

[@nicolarusso5875]

Well done, thanks for sharing

[@AmitGamerz22486]

Sir did you ever use that liquid solder i have seen many videos people use that to connect resistance capacitor

[@CaptainKirk01]

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.

[@theo2378]

According to him, he started it on KZbin

[@venerandarain3]

finally..showing up after a week.

[@silver831cali3]

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

[@TB-jl9fr]

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?

[@Killmode29]

The anticipation at the end! 😂

[@neutrinowave]

let me ask if you power on the phone and check using thermo cam you will see that chip dark is this evidence on dead ship is what am say wrong or right?

[@payusavisit3482]

Why not power on to hear vibration for confirmation

[@richardtejada6629]

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+.

[@attarirepairs413]

Can we inject voltage in the "faulty" coil and see any heat under thermal camera?

[@yiannakosautomotivekeys2380]

*I paused the video at **0:39** to write this comment. That's how far I got into this video and I want to say that Alex is a master. I have no doubt he will FIX this. Lets continue with the video!!!*

[@R1150rt]

Excellent as usual.

[@Swenser]

Some phones need the back frame (which can have traces) put on to see a result. Did you try that.

[@polayer4040]

We're you able to find a screen? Did you get it to work?

[@BeiLLiac4]

If the batt is flat it can take few minutes before you can turn it on.

[@digihorse6730]

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.

[@PKceramics]

Hello what temp you using please to extract the chip 380 C ? thank you

[@theworld9307]

Have you doing video class for laptop chip level service (with payment)

[@LinhTran-ij7mj]

What temperature your hot gun ?

[@hatesomeone2220]

Nice explain sir👍👍👍

[@leso204]

So Alex you do make the odd 'Fubar' 😎

[@foryou_id]

I hope there is a continuation of this video what actually happened

[@eliavs1234]

You the best always thanks Alex❤️

[@ErickBuildsStuff]

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.

[@Ben95]

Can you recover photographs from a locked out ipad?

[@THE4KNATURE0.7]

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،⁦☺️⁩

[@mikeanderson1994]

First like and first comment amazing job as always well done huge fan here keep it up brother ✌️✌️

[@nathanhitchcock7307]

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?

[@I_SuperHiro_I]

It’s amazing how you can remember 1 of thousands of jobs from 2 years ago.

[@yaghiyahbrenner8902]

Do you recommend this technique for a new PCB i.e BGA reflow on a new pcb board.

[@alexholmes4281]

What happens after

[@smdsoldering]

Is that Max chip come with 60/40 or unleaded

[@smdsoldering]

Always unleaded

[@Showstopper108]

Hopefully a part 2

[@nbctcp3450]

hope u update us after u replacing the screen

[@hatesomeone2220]

Hello sir, can you help me for mobile reparing?

[@nednedtom]

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.

[@chasefournier]

The chip shorting out could have killed the original screen. Obviously you fixed a dead short, so probably a bad screen!

[@dafalzonAUS]

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😂

[@kennyadvocat]

This is why i set my phone to save photos to the SD card. I used my s7 until one day the screen stopped working. Could have been the same issue here. I just popped my card out and got another phone. Photos on card and all the app data will sync from google server on next phone. Sucks even with the phone working you can't plug in the usb to backup.You need the screen to hit the connect to computer button for it to work. I do also backup my sd card but not often, only every few months. More likely for an old phone to brick itself vs. and sd card.

[@allinclusive5762]

You need a second camera for showing the multimeter picture in picture ( like others do )

[@I_SuperHiro_I]

He always tries to make sure we can see it when it’s necessary.

[@repeekyraidcero]

He gives enogh info and orally conveys info. I love the simplicity of his vids. Others overload theirs with far too much overlays

[@mag941]

Nobody cares

[@mukeshuniverse]

no need he tell it

[@MrDoubleD93]

You can purchase another camera and mounting stand, SD cards and donate it all to Alex.

[@kevinkc3onohelijeepworld953]

Best tacky flux ever 😉☺️that cleans easy leaded or unleaded ☺️

[@rahmatislam9467]

Sir you replace the old ic max77....

[@Don0van5100]

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

[@curtkeisler7623]

Sometimes the phone is so dead that it won't come up until you have a certain amount of power in the battery. I wonder if you just let it charge completely if the phone would come on.

[@protection4541]

Hi Alex, was his fault not identified?

[@ACOnetwork]

No squizy on the MAXy 😁

[@shahulhameed-pg9ns]

Its been long time you've working on bga chips thats why this occured

[@funnyashellvideos1]

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

[@ahsan4897]

Alex do you plug its wireless charging coil on its back it will not power on without it because the coil has a temperature sensor

[@theoneohmresistor]

yes!

[@bagasfabianmaulana]

It's a S7. The temperature sensor is on the USB PCB board. No need to plug the wireless coil for charging.

[@theoneohmresistor]

@@bagasfabianmaulana oh nice to know, what was the phone with the sensor with the coil?

[@blocky3664]

Mad skills!