Hello
My phone accidentally got dropped in water today (for less than 1 minute).
I took the back cover off and removed the battery and SIM card. I wiped everything with a dry cloth.
I put everything back together and the phone did turn up. Touchscreen display is working but unfortunately screen is not responding to touch.
I took a friend's phone and called my number. I could see caller ID on the screen and three buttons - for accept, reject and message - however touching them does not work.
I sent myself a message on WhatsApp and I did get a notification on my phone (lock screen) that a message has come - thus WiFi is also working
I connected the phone to charger and I could see the battery icon on top-right turned green, indicating that the phone is charging.
I can however see a headset/headphone icon on top-right as well, even though no headphone is connected - although I am not concerned about this as I don't use headphone at all.
My issue is that touchscreen display is not responding to my touch, which makes the phone unusable. Note that the display is there and the clock is updating the time.
Is there anything that can be done please?
When I first restarted the phone after wiping off the wet parts,
I received a screen with following buttons.:
Chinese
PCBA Test
MMI Test
MMI2 Test
Hardware Info
fastboot
recovery
download
Power Off
PCBA test: FAIL
MMI test: FAIL
MMI2 test: FAIL
Finish(==VolUP+Power In==)
However, after a few restarts, this above screen went away and I was getting a normal lock screen (which I could not unlock because the screen is not responding to my touch)
Also when I press the power button to shut down, I get 4 icons (as usual for shut-down, flight mode, restart etc). But I cant interact with them. I have to remove back-cover and take battery off to shutdown the mobile phone.
So, seems like it is the responsiveness of the touchscreen, which is dead.
ilikeandroid2015 said:
When I first restarted the phone after wiping off the wet parts,
I received a screen with following buttons.:
Chinese
PCBA Test
MMI Test
MMI2 Test
Hardware Info
fastboot
recovery
download
Power Off
PCBA test: FAIL
MMI test: FAIL
MMI2 test: FAIL
Finish(==VolUP+Power In==)
However, after a few restarts, this above screen went away and I was getting a normal lock screen (which I could not unlock because the screen is not responding to my touch)
Also when I press the power button to shut down, I get 4 icons (as usual for shut-down, flight mode, restart etc). But I cant interact with them. I have to remove back-cover and take battery off to shutdown the mobile phone.
So, seems like it is the responsiveness of the touchscreen, which is dead.
Click to expand...
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Taking out the battery was the right thing to do. But you should have left it out for longer. Put the phone into a bag of rice or silicon desiccant and leave it for a while to ensure all the moisture has been removed. Its highly likely that your phone is still wet internally which will definitely screw around with the touchscreen. Right now you should just hope that your touchscreen controller hasn't been shorted out permanently, which can happen when moisture gets in.
Related
Hi guys
I have this strange behavior going on in my Sentation.
Out of nowhere my phone started to have strange screen behavior... Didn't light up after pressing the power button (had to phone my self in order to get screen on).
The next thing was that suddenly the screen goes to maximum brightness or goes to minimum without any explanation (tried both auto brightness or manual).
After that I noticed that the screen went off when I was using it but when I pressed the left side of it it lighted up and off again... making me think of some kind of bad contact underneath. As I already had changed a broken touch screen for t3 times, and let the phone fall for several times I thought it had to do with some plug out of line...
I disassembled the phone completely and mounted up back again. The thing is that the phone started to freeze every 5 minutes (screen on but completely freezed. I have to pul out battery). Sometimes it freezes even in the recovery menu. I've tried several rom's with full wipe and not installing anything and its all the same.
Some times I still not that the screen goes off during the freeze but when I touch the left side it goes on again, but that doesn't change the freezed state even that I let down the phone for several minutes.
I disassemble the phone again, tried different back cover and different battery (one stock and other extra strength) I tried also all the suggestion related to the small pin in the back not connecting well with the back cover (adding an aluminium foil, pulling the pin out, etc..)
Nothing seams to resolve anything so I have clearly an hardware problem... but I don't know what to replace or where to look the damage!!!
Can anybody help me please?!
Update
I have an update on my problem:
I noticed that when I leave the phone on top of some kind of metal part and don't touch it it works all day without any problem but, as soon as I start to touch the phone, it freezes within minutes!
Could it be some kind of static electrical problem? How to resolve it?
I would apreciate any help
Thanks
Hey,
I was replacing my screen, when I went to test it instead of the google logo I got a fully green screen, the phone booted, but continued to be green. The always on display looks exactly as it should. Once it was fully on, I managed to put my pin in blind and the phone all works fine (it seems), and some black gets through, I assume the screen turns off those pixels which is why maybe that shows up correctly(ish).
The interesting thing is, I did at one point have to working fully, full colour, this was between reconnecting the ribbon cable and restarting, but I pressed the power button to sleep it and then hit it again and if I remember correctly was green again. So that made me think "poor connection" of come kind. What's even more strange is that when it is green and I press the power button to sleep and wake, the screen appears at least to display the full colours at the end and begging of their animations respectively. Maybe its not full colour, but at least it's more visible.
The final thing is when I go into the bootloader, sometimes it's full colour, and others it's got the solid green effect where black isn't displayed. What's odd is, even when the bootloader is showing correctly as soon as start is click it goes to a full green screen again and we don't see the logo at all. Also I managed to get into safe mode and it made no difference. It's just odd that it seems to decide to green, rather than due to any cable tussle
Basically has to a cable issue, but I'm not sure how to troubleshoot it, and advice on how to proceed would be much appreciated. Like if the screen arrived faulty, if the connector is damaged in the phone so it can't be used, and the motherboard would need replacing.
Thanks,
Dillon
In recovery mode, there's full colour as well, I factory reset the phone, but it made no impact. However entering into recovery mode did flash the google logo and some of the screen whit, and the same thing happened on reboot from recovery mode.
It seems so odd to have these kind of consistent moments of colour and not colour if it's the ribbon
I should have also mentioned, that the clamp is broken, could that be the issue, does the connection need to be screwed in?
Also Here are some images of both the phones connection and the screens
I'd say jb weld your broken clamp before buying parts. Could be as simple as that it's not a tight enough connection
Screen is black and no combination of button input will do anything. Unit will charge and CPU is running since it's sending battery and location data. Unknown if unit may have been damaged/dropped. Have ADB. Help!
The phone is making normal notification and ringing sounds. I managed to locate and run Scrcpy.exe, a "carbon copy" program that lets you remote-in to the unit using a computer keyboard and mouse and ADB over a USB connection.
Invoking Scrcpy.exe I was greeted with an image of the "normal" phone screen (what I should be seeing on the phone's display if it wasn't black.) After about 10 seconds the phone-screen on the computer turned black and I was back to square one. Tried again and quickly used the mouse to trace my unlock pattern, this worked. Using the computer keyboard, mouse and display with Scrcpy.exe I was able to read email, check voicemail, I presume I could do anything I would have been able to do on the phone's touch screen (unknown if the touch screen still works).
Unfortunately I haven't yet been able to coax the phone's screen into displaying anything other than black.
It's beginning to look like the screen is FUBAR -- or is it?
E: The home key, power key, and the touch keys to the left and right of the home key all work. Ran Samsung diagnostics by pressing *#0*# . All diagnostic tests passed except for display and touchscreen.
Will attempt to drain the non-removable battery and try again.
Cured it by draining battery!
The battery was allowed to completely drain and was reconnected to a charger, resulting in the screen coming back to life!
Hooray beer!
/thread
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.
I tend to use my pad for traveling mostly, so it has been unused for about 6 weeks.
I turned it on a couple of days ago and all was fine until overnight it went into a reboot loop (or so I thought).
The following day it was dead, so I recharged it (during which it was rebooting constantly).
It would reboot every 10-15 seconds, even it it was in Recovery or FFBM mode.
The fact that it would reboot whatever mode it was in meant (IMO) that it was a hardware issue and not a software one, and the likely culprit was the power button. (It was acting like the power button was constantly depressed).
Using a pin I was able to lift the power button slightly and sure enough the pad booted and showed that it had pretty much fully charged even whilst rebooting.
As soon as I removed the pin it went straight back into a reboot loop.
Does anyone have any ideas how i may proceed to fix this issue? (It may even just be a humidity issue on the fingerprint sensor as I live in a highly humid country.)
I can't even work out the best way to open the case as there don't seem to be any tear-downs..
Thanks
Mine happen same issue with this, solve it by using
Step 1 : Spray 3M™ Quick Drying Contact Cleaner 16-102, around the Power Button Area.
Step 2 : Apply 3M™ AR-100 Anti-Rust lubricant.
So far after 1week, not more repeated