Samsung amoled remains black, except if I remove the battery - Device Repair

My A51 fell into water. After i cleant it with 99% IPA, everything came back to life, except the screen.
The touch works, charging works... but the amoled remains black (even on bootup).
The only moment I saw something displayed on the screen is when I tried to power on the phone without the battery.
Of course it bootloops, but i can see a green tinted samsung logo for a quarter second (normally the screen remains completely black).
Here is the video of it : Video
This issue is very strange, I tried the screen with another motherboard (which also fell, but not in water), same result.
Anyone got ideas ?
Thanks

Hello blacktime2, your S10 once in the water you put it in rice for 24 hours then clean the usb-c port well. I think it still has humidity turn it off and put it in rice or with a hair dryer do not connect it to the mains especially not

Related

Funny screen after battery replacement

In short I replaced battery, but after my screen goes funny - its only snow from pixels
I reconnect everything few times specially the screen ribbon, but still not luck... all ribbons are intact as I was very carefull.
apart of that phone if working
Any idea?
Regards

No power on after display replacement

Hi all.
I got my M8's display broken and tried to fix it on my own, because my trusted service didnt.
After reassembling the Phone with the new display it didnt power on. Plugging the recharger turns the display on and the screen shows an empty battery logo with a lightning flash inside, but no green beam inside. The orange LED keeps flashing, not glowing.
Holding power/vol-up/down buttons make the display and LED turn off and on again. Shortly before the display turns off, the orange LED starts flashing green once for an instant.
Mounting my old broken display afterwards (which is wasted now) made my phone boot again once.
I'm not sure if this is conflicted to the battery, as I found the same synonyms according to a total discharge. When disassembling the phone I might have damaged the battery slightly.
Is there a way to functional check the battery?
I connected a resistor and a LED to the galaxy s5's batteries contacts and it illuminated, while the M8's battery is built completely different.
My MO was:
Firstly I disassembled my phone according to this video (its german).
After taking out the battery, I complete disassembled the front case, including camera/sim/sd card-unit etc. (the video didnt show disassembling that unit).
I bought a new front case unit including display, digitizer etc.
So I mounted all units on the new front case.
I'd be really encouraged! Thanks for help.
EDIT
I replaced the battery and the display once more. It works fine now.
I Have the same issue, did you buy a new battery?

Charging loop overnight? Screen may be damaged.

Hi everyone, yesterday I used NeMa's battery calibration to reset the batterystats on my Xperia Z3 Compact running the latest Cyanogenmod. I had done it when the phone was charged at 100% and noticed that the battery instantly dipped to 99% afterwards. I took note but I wasn't worried at the time. Last night I left the phone on its charging dock and slept for about 5 hours and 30 minutes. When I woke up I picked up the phone and noticed it was hot. The screen was fine at the time so I checked the battery percentage, saying it was stuck at 99% which leaves me to believe that the battery was stuck in a charging loop from a bad calibration. I texted someone and also noticed that the Swype keyboard was laggy and unresponsive, but with my lock password, etc. it seemed to be fine.
I powered the phone down and slowly tried to dissipate heat with warm water and later colder water. When I tried to power the phone on, it had shown normal booting until the end when the screen gave out. Currently, it will show normal LED lights up top and calls will still register, but the screen is dark and doesn't seem to have promising digitizer input because I can't answer the call even though I know where to touch the screen to answer it.
Has this happened to anyone? This is my first encounter dealing with this. Any fixes (screen response or proper calibration), or would I just have to get it repaired?
Hello, check this things out
only 2 ways to find out if the screen is working or not working at all
a) a very dark place... start the phone.. maybe the screen is not iluminted proprey ! and maybe the screen is visible ...but very limited.
b) buy a mhl to hdmi cable.. to connect from phone to a smartv.
And see if the touch respons.. if yes the only the screen i out.. if not the screen +touch is out ( dead)
Yeah the screen and digitizer are fried. I'm going to try and return it to the seller stating a defective battery. Has this happened to anyone else? I just need to know if there are any fixes to this if I were to get the same phone.
FactionsOfArt said:
Yeah the screen and digitizer are fried. I'm going to try and return it to the seller stating a defective battery. Has this happened to anyone else? I just need to know if there are any fixes to this if I were to get the same phone.
Click to expand...
Click to collapse
Poor seller, you blew up your phone with bad software and water and you want someone else to pay for it.
FactionsOfArt said:
Hi everyone, yesterday I used NeMa's battery calibration to reset the batterystats on my Xperia Z3 Compact running the latest Cyanogenmod. I had done it when the phone was charged at 100% and noticed that the battery instantly dipped to 99% afterwards. I took note but I wasn't worried at the time. Last night I left the phone on its charging dock and slept for about 5 hours and 30 minutes. When I woke up I picked up the phone and noticed it was hot. The screen was fine at the time so I checked the battery percentage, saying it was stuck at 99% which leaves me to believe that the battery was stuck in a charging loop from a bad calibration. I texted someone and also noticed that the Swype keyboard was laggy and unresponsive, but with my lock password, etc. it seemed to be fine.
I powered the phone down and slowly tried to dissipate heat with warm water and later colder water. When I tried to power the phone on, it had shown normal booting until the end when the screen gave out. Currently, it will show normal LED lights up top and calls will still register, but the screen is dark and doesn't seem to have promising digitizer input because I can't answer the call even though I know where to touch the screen to answer it.
Has this happened to anyone? This is my first encounter dealing with this. Any fixes (screen response or proper calibration), or would I just have to get it repaired?
Click to expand...
Click to collapse
This: water

top part of phone get hot after screen replacement

Hello
My screen cracked so I ordered a new on ebay. However after I have put the phone back in its shell the top part gets pretty hot. I opened it and started it without the aluminum shell to test and there were no heat? Anyone know what it might be?
Thanks In advance!
That isn't likely to be the screen. My phone gets warm too. About 4 days ago out of nowhere I noticed the upper part of the screen feeling warm, it turns out my phone had stopped sleeping properly and Google services had resumed chomping on my battery when the screen was off.
Tho when i don't keep it in the aluminium case it's not warm at all, turned on and I have logged on my simcard/wifi. I have left it on outside of the case for 1 hour and it don't get warm at all. However in the case it gets super hot as soon as it boots and then after 15-25m it turns off probably because it's too hot
Happened the same last night with me.
Put a download and slept, and in the morning it was all drained of battery and it showed that it shut down after minutes after I slept with 90%battery.
It was weird. Had to keep pressing power button for 40 sec approx for the phone to turn on.
It's working fine now though
did anyone of you even read my post? I said after a screenreplacement. It didn't just happened randomly. however i fixed it. I removed the camera and the earspeaker and reinstalled them used some alcohol on the contact points on the case and the earspeaker and it seemed to fix it if anyone has this problem later down the road
Hi jullleee, I have the same problem as u after I replaced the screen. The phone getting too hot on the top (one plus 3). On charge it becomes more hot and faster on very high temperature than without charging. Also the battery dont charge . Why did u reconnect the ear speaker and the camera ? Thank you in advance
DestinyisGone said:
Hi jullleee, I have the same problem as u after I replaced the screen. The phone getting too hot on the top (one plus 3). On charge it becomes more hot and faster on very high temperature than without charging. Also the battery dont charge . Why did u reconnect the ear speaker and the camera ? Thank you in advance
Click to expand...
Click to collapse
For anyone coming across this thread I just had the same problem when replacing my Oneplus 3 screen. It seemed to work, and I plugged it in, but it said "battery too low charge for a while", then I got the 0% and seemed to charge and then restart, and then be back at 0% and be stuck in this boot / charging loop. My battery had died hard when my screen died so I thought maybe it just needed to charge for a while, but the top half of the phone got very hot.
So I took it apart again and it turns out the issue for me was with the top ribbon cables that cross the battery. Where they connect to the main board was very tight and it was difficult to get both of them in place properly. Usually they kind of overlapped and one stuck up slightly. It was fixing their placement before bolting down their cover that fixed this issue for me.
Edit: Never mind. Still searching for my issue. Taking the back case off will let it work normally but whenever i snap it on it goes back into this charging loop, I still suspect it's an issue with these two cables and the case is putting pressure in the wrong spot or something but I'm not really sure yet.
I had the same problem, the issue was the fact that i plugged the ribbon cable the other way around.

Did my battery die?

I just replaced the screen (cracked) and charging port (worn out) on my Mi Pad 4 Plus.
To do this I had to remove the battery and unfortunately one of the stretch glue strips snapped off. So I had to use a metal feeler gauge to get the adhesive off the underside on one side. I was careful and visually the battery looked fine on removal. I didn't damage the battery shell and it didn't bend/crease.
After fixing the screen I tested most of the functions before reassembling but forgot to test the camera.
After I put the case back on it had been working fine for several hours when I tried to open the camera app. The screen flickered and the tablet crashed.
It then just bootlooped and if I booted into TWRP the screen was flickering badly.
I noticed however that after a few minutes (plugged into the PC USB port) while in TWRP the screen stopped flickering.
I also noticed the battery level reported is now wildly erratic. It would show 6% in TWRP then rapidly charge upto 80%.
I took the battery out to inspect it and upon reinsertion it's showing 6%.
A genuine new battery is only $16 from AliE but I'm wondering if I'm likely just wasting money and the issue is somewhere else?

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