So, first I thought my brother's A51 was water damaged because it was wet a little bit and charging was being interrupted. I left the phone turned off for the night and wanted to look at it again the next morning. The problem is that the screen or something else stopped working.
The screen works fine in Download mode, Recovery mode, or at splash screen with phone's model name, the problem begins when it's booting to Android. It's still stuck at the splash screen. no boot animation, no lock screen visible, just a model name. It's not bricked, because I can still unlock the phone (didn't have a password) and I can hear the unlock sound or charging sound (it started working again).
I tried factory reset through recovery - didn't help, flashing fresh firmware from Frija - didn't help. The only thing that changed is now the splash screen brightness goes down a bit and I noticed that until I am touching the screen so the phone can't lock itself it doesn't turn off the splash screen, but when I press the lock button it turns off the screen and I can't turn it back on, but the phone still works because I can hear charging sounds and it shows up in Device manager.
I also opened it because I wanted to see if there's any water damage, but I didn't see any water marks or burnt components. I cleaned the charging board with alcohol and let it dry but that didn't help.
I'm worried that there's something wrong with the motherboard or the charging board because it has a screen connector.
I can also see that some people here have similar issues:
Unbrick A51 - Stuck on samsung logo
Hi, My phone is stuck on A51 logo for days now it charges - I can enter download mode easily - I can sometimes enter recovery mode some other times it doesn't let me I tried flashing different stock ROMs of android 10, 11 for the phone with...
forum.xda-developers.com
black screen after splash and unable to factory reset, possibly frp?
Apologies for formatting, typing up on my phone during my break at work. To be more specific, I have a samsung a51 that recently had a black screen of death with no known cause. The samsung splash screen as well as the recovery menus alll work...
forum.xda-developers.com
I should also add that I don't have access to settings so I can't unlock OEM and flash custom recovery / ROM. I also cannot downgrade to Android 10 (duh)
I have exactly the same behaviour here.
I ordered a "defect" A51 on Ebay which was not working. I opened it an saw a water damage at the USB-C charging board. Since there was a lot of oxydated parts I ordered a replacement for this board.
After cleaning an replacing the charging board I have the same issue as szerbi. I see the charging screen (while powered off), I can enter download mode and transfering stock firmware using Odin, I can enter recovery mode. While all these states the display works well and I cannot see any damages like a broken display.
I even got it working correctly after several Odin firmware update and recovery mode / factory reset attempts and I could install some apps and set up my google account. I was very happy. But after some hours again: no screen while Android is running.
Now, when Android is running I hear the charging and the screen shot (pressing volume-down + power buttons) sounds and the phone will be visible as a storage device while connecting to a PC.
Conclusion: The display is black while Android is running. Since it was shortly active I assume either a loose contact on one of the flex cable connetions or a water damage at the displays flex board. Unfortunately latter cannot be checked without dividing the display from the display frame. I assume this is an irreversible process.
Related
One of my friend tried to root his phone using odin and a firmware for version 9023 while he has a Nexus S GT-i9020t. I've been looking for some hours, and I couldn't find any solution for that problems.
This post has similar symptoms, but still no answer: http://forum.xda-developers.com/showthread.php?t=1436199
Symptoms
- No backlight at all (seems to be a problem version amoled vs slcd, as I could read)
- Screen is upside down (but buttons, keyboard, etc still react correctly, only the screen display is upside down, so you get to have two phones next to each other to press the right buttons...)
- Can't get into download mode to flash using Odin and the correct firmware. When you hold both volume buttons and plug the USB cable, you get the first attached image. Green lines, nothing else.
What it can do
- Phone can get into the bootloader, but screen is very dim, as you can see in the second screenshot
- Phone can boot normally, you may take screenshots, place phone calls (while guessing numbers), receive phone calls, but the screen backlight stays off, so it's pretty hard to read anything. Tried to get to the display settings to play with the luminosity, without success.
- No problems using adb to send commands to the phone, or using fastboot to flash the device.
What i've tried
1. Downloaded original firmware image from Google, and tried flashing the device using fastboot. Tried 2.3.6 and 4.0.4 for Nexus S worldwide (i9020t) - over here: https://developers.google.com/android/nexus/images . Still no backlight.
2. Tried the One-Click Unbrick for Samsung devices. Installed drivers and everything, the tool return the result Success, but still can't access download mode, or fix the problem.
It looks like the graphic part of the phone is messed up, and i've got no idea on how this could be possibly fixed.
Any help would be greatly appreciated !
I think your AMOLED Screen just died or is going to die. If it is still under warranty, get it replaced. If not, look on ebay and buy a replacement screen. Its a do it yourself procedure. Or take it to a phone repair shop and they'll do it for you.
It's not under warranty anymore, it's 1 year and 2 months old.
I doubt the screen died, since problems started when he installed the wrong firmware. Can a bad firmware cause physical damage to the screen ?
Hello All,
Basically what happened is this:
I got phone D6603 with "Vodafone protect" lock on and owner gave me a possible code for phone. I replaced screen and then found that lock requires only numeric pin, not what I was given. So, he then reset pin and deactivated lock, but I still had it on no matter what. So, I tried to flash new firmware into it for same phone and got it done, but now phone screen stays black all the time with only backlight on. Phone seemingly loads something (probably the new phone welcome screen after flash), which I cannot see, but when connected to computer from fastboot or something then all system files are visible.
When I boot phone from off position, it boots to a point where I can use side button to switch on and off the screen but touch does not respond because nowhere it reacts to touch or maybe I do not know where and what to click on screen.
What could be the likely solution? I do not think that phone is bricked, but something is wrong with system as it does not light up the screen properly. I tired flashing 2 times successfully with same result.
Any advice would e appreciated.
Hi, can this thread be deleted because I am getting phone swapped and thread no longer relevant? Thanks.
Hey there,
I have got a Samsung Galaxy S8+,SM-G955N.
Some days before,my phone was stolen by a thief,then I asked for the police for help.The police found the phone for me in the end.
I was so happy at first for my phone was survived.But then I found my phone's screen is always black.When I connect my phone with the wireless charger and charger,I can hear the sound of connecting the power,and I can hear the notification sound,when someone calls me,I can hear the ring!And "hi,bixby"also works!I wonder why?!
I have rebooted so many times,and tried to reboot the phone to recovery mode and download mode.I ended up with failure.
(My phone has been flashed a custom ROM and TWRP.My phone has a lock screen password and lock screen protect which means you can't reboot and power off.)
I really don't know what the thief had done......But my phone wasn't fall off from high places I can be sure......For the phone has a perfect body.)
Then I tried many times to reboot one day the screen recovered! But I found that the screen is not stable,which means it has many bars,it will disappear and then appears at another zone.Just like the old TV set.
I want to wipe /data,then I rebooted to recovery mode.But.:crying:the screen then do not working...... Just like before.
Then I tried many times,I entered the recovery mode.The screen works in the end,but the colours seems very strange,a little purple.and the touch screen don't work at all.I used the mouse to swith the brightness in TWRP,but when I turn the brightness to over 80% or lower than 40%,the screen looks dark.I can hardly see the contents.
So I want to ask you all for help,is this a hardware or a software issue?How can I solve it?
Thank you all and I love you all!!!!!!!!!:crying:
I am a student......And I am so poor.....
Thank you all again!!!!!!!!!!!
I'm hoping you have warranty. Seems like you have done a thorough job at trying to problem solve. I'd head to a repair place for a quick confirmation and maybe repair.
seems like a broken/damaged flex in the screen
Hi,
My customer brought me a phone after a water damage. He claimed that the phone has been working fine for a few days after being dropped into the water untill it has discharged. Now when connected to the charger it just normally shows battery percentage level and is charging fine, but if try to turn it on it just shows Samsung Logo, vibrate twice, again vibrate twice and turns off.
What I have done:
- i've fully dissasembled the phone and clean everything with isopropyl alcohol (99%) (most of the water damage was on the bottom panel with usb charging and LCD connector, mainboard and batterry looked untouched)
- i've put both boards for an hour onto the 100 Celsius board
- after another 24 hours i've reassembled the phone and the problem remained
- I've replaced usb charging board and cabel between it and main board with working ones (still the same)
- I've reflashed stock ROM for SM-A515F Poland (without CSC)
- wiped cache
Nothing worked. Moreover, when I tried to enter Safe Mode the screen went "static"? It just looked like analog TV when you have no signal. Every restart ended up with this "static screen". However when i enter the recovery or download mode it looked sometimes fine. After another Stock ROM flash "static screen" has no longer showed up, but the device still "turns off" after Samsung logo and 2x2 vibrates.
Right now I'm not really sure if it is software or a hardware issue. Had anyone dealt with something like this? Any advice is welcome
I haven't tried factory reset yet, because the customer has many important photos on the device (with no backup :/)
Have a good day!
P.S. Tomorrow i will replace LCD to check if it's faulty. If don't I'll be looking a way to retrieve photos from this bricked phone. It's locked with Google Account and PIN, has not enabled debugging or anything else. Is it possible to somehow restore photos from this phone? Some way to install CWM without unlocking BL (to prevent data wiping)? Then from CWM i should be able to fire up ADB and pull personal data? Has someone any idea if it is possible?
Hi again,
I was so happy that i've fixed this smartphone for my customer that i've forgot i've wrote here
Finally I was able to fix the phone. Even the screen looked fine in the download/recovery modes it turned out that it's faulty. With new screen phone is starting fine and everything works correctly. Here's the link where i show the old screen and new one and how the phone responds:
I was using my phone like any other day and just like that the screen went blank. The phone itself is functioning as it should, notification LED blinks properly, vibration is working and when rebooting, the whole REDMI and MIUI animation shows up (with the screen fully functioning) but once the boot ends, PUFF, gone blank again. Fastboot also shows the bunny messing with the android, so it is not a faulty screen but some glitch with the ROM (stock fully updated) I guess.
Any insights on this particular issue without the need of wiping it clean?
PS: the MI suite says it is not compatible with the phone... so I'm super anxious about losing all my data.
PPS: since the screen isn't working I can't change from CHARGE ONLY to USB FILE TRANSFER, is there a way?
I have dropped the phone once, and the screen wasn't working.
Luckily I changed the battery before, so it was easy to open the back of the phone.
After the drop, the screen connector got disconnected somehow.
So after connecting it, it still working fine.
Check the connection if you can, and the new screen is only $20.
Not a hardware issue I think. He cried his system UI (user interface). Try factory resetting in stock recovery.