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Help - water damaged - touch screen doesn't work

I have searched for similar issues, nothing posted. My phone went swimming with me the other day, DOH!
I have thoroughly dried the unit in rice/dehydration powder (works REALLY well by the way). Unit is completely dry, boots up, recognizes sdcard, radios work etc.
Unfortunately the touch screen doesn't work. I have read that the unit may simply need to be recalibrated. I have carefully disassembled the unit cleaned and checked all leads etc. The unit again reboots, everything works but touch screen.
I am thinking about odin new image to see if it recalibrates screen solves problem, any thoughts advice etc?

Might have to replace the lcd
Sent from my MIUI powered S3 thanks to StrumerJohn and using Tapatalk 4. Respect My Authoritah!

A friend if mine experienced the same problem. And now none of the speakers work nor does Bluetooth. Phone is also going in to safe mode quite often. Is it fixable? I've repaired plenty of iPhones, and did remove the back to try to disconnect and reconnect the flex cables to see if that would work but to no avail.
Sent from my HTC One using xda premium

Did you trip the water sensor? I had a similar issue, did not trip the sensor though. I tried some of the recal methods, not sure off the top of my head but i think you have to hold your finger for a certain amount of time in one of the corner, I am sure someone will know how to do it.
However what I ended up needing to do since the re-cal didnt work. I bought a usb otg adapter to connect a mouse to my phone, followed the steps to return it to stock, odin, unroot, triangle away etc, and sent it back to verizon for a replacement with no problems at all.

Same issue:
Phone was soaking in my gym bag because one of my water bottles leaked. It was in there for a good 10 minutes. I took it out. Dried it and put it in rice asap. 24 hours later I take it out and it boots fine, can connect to my computer move files everything. However, the touch screen will not work. Any tips for self repair? Will leaving it in rice longer fix my issue?

Black screen after getting hot while charging

Hello together,
I have a Z5 (6653) that didn't start anymore and got extremely hot while charging. To be more clear: after connecting the phone to the charger the red LED turned on, then after about 10 seconds later it turned off again. From this moment on the phone's back started to get extremely hot. The source of the heat is about 1cm right and 1 cm down to the back camera (so you can say 1cm diagonal from the camera to the phone middle). Because of this I doubt it has to do with the battery as it should heat the lower two-third and not the upper third of the phone. Maybe the processor is at this place?
I tried to connect the phone in flash mode with the PC and it connected, but disconnected after a few seconds, probably because battery was empty. I repeated this procedure (connecting to charger, disconnecting, reconnecting, connecting to PC) a few days and suddenly the red LED kept on and the phone didn't get hot anymore.
So I charged the phone fully and wanted to start it, but the screen won't turn on anymore. Connecting it to the PC and the Phone drive (MTP) is displayed but empty, because you need to unlock screen. Also I hear the connecting sound of the phone and touch feedback sounds.
I tried the following things:
Xperia Companion Repair
Flashtool flashing newest ROM
Flashtool downgrading to 32.0.A.6.152_R5B (LP ROM)
Nothing helped. Well, the idea it is an hardware issue might be at hand, but maybe there is something else I can try first?
And if it is an Hardware issue, what is the cause? The Display itself? Then why was a single point at the phone back the source of heat and not a large area on the phone front?
A short summary:
Phone gets hot while connected to charger
Battery won't charge (LED indicator turns off after few seconds)
Source of heat is 1cm to the right and down to the back camera; after 2 minutes whole phone is hot and you can't recognize the source
After days of repeating the action (connect to charger, disconnect, connect to PC, connect to charger) it suddenly charged the battery and didn't get hot anymore
Display won't start anymore; still responsive
Tried Xperia Companion Software repair
flashed latest Stock ROM
flashed Lollipop Stock ROM
Phone has locked bootloader and is/was not rooted. I'm grateful for all help!

I guess its a dead screen maybe u droped it and the pins of the screens got ejected from the motherboard.. Ignoring the fact that it was empty of charge and you charged it.
From what i understand that the phone is working but there is no screen.
The best thing u can do is to check a hardware store that is capable of diagnosing the issue.
Im not helping here i know but wanted to share my thoughts..
Gd luck with that.

Thanks for this anyway. But phone didn't drop.
The fact that the phone wasn't charging and got hot instead at the beginning is very irritating. Especially that it wasn't the front but a point at the back near the camera. Is there a way to check if it's a Display issue and not a Mainboard/Processor/other Chip issue?
At least in Germany are a lot of stores that aren't too competent at all. But nobody would tell you, so its very helpful to know as much as possible before going to a store.

I think it might have something to do with the gpu inside the soc? The heat might have burned something inside the mainboard (how hot was it btw, like running intensive apps or even hotter than that?) Another thing that might have happened is the display cable is loose.
I've seen some Z5's screens and they're not that easy to die.
The best thing I can suggest is that you repair it in a trusted shop that lets you observe the repair procedure directly (open the phone, take the parts out, identify the problem).
Good luck with your phone.

colorado48 said:
I think it might have something to do with the gpu inside the soc? The heat might have burned something inside the mainboard (how hot was it btw, like running intensive apps or even hotter than that?) Another thing that might have happened is the display cable is loose.
I've seen some Z5's screens and they're not that easy to die.
The best thing I can suggest is that you repair it in a trusted shop that lets you observe the repair procedure directly (open the phone, take the parts out, identify the problem).
Good luck with your phone.
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Click to collapse
I never played any game so it is hard to compare, but I never had a phone in my hands that got this hot before. You didn't get instantly burned touching the phone but it was already inconvenient hot for your fingers/hand.
There might be some trust able stores to find, but I doubt somebody will let you observe it, not even Apple store does. If you see the trick of how to repair it easy and fast, you might do it yourself next time. And it is also a question of the price. If I can buy a used but totally unharmed Z5 for the same price, why should I let it repair?
As far as I could see in Germany repairing Display starts at 99€ for the Z5. Buying display with adhesive would start at 49€. But if they change the Display and it's still broken you have to pay for the Display and also for the mainboard i.e.

Random Freezes and reboots after full software reset

Device: SM-G920F
ROM: stock 7.0
Build number: nrd90m.g920fxxu5eqf1
kernel version and its settings: 3.10.61-10958180 [email protected] #1
Not rooted
So my phone has been acting up for good 6 months now. I was getting random reboots and freezes that would last anywhere between happpening just once or going on to continue for a day. Sometimes it gets so bad, that the phone would not work longer than a minute or so and would immediately reboot again. During the freezes the battery gets drained really fast (about 20-30% in 15 mins). If the phone freezes and I reset it (volume down+power) it just reboots and then it could freeze again in a minute.
I went to samsung and they told me it's a software problem, so they reset all the software. In less than a week it happened again, and yesterday it froze while at recovery menu, so it's probably not software. Today I went to Samsung again and they told me that if that's still going on, they have to change the motherboard (which would cost me like $320 and I'm better off getting a new phone anyway). So what would be your advice? Can it still be software related? Or can it be related to a hardware component that can be replaced separately from the board and I should try private repair shops?

Hi, my son has become the same problem on the same phone model.
I put him in a private repair shop, and twice he was dismantled and repaired. If nothing happened on the phone, it worked, but as the problems began to work, they reappeared.
It's some cold connections on the base plate ...
We have ordered a new phone ...

GREY_LIGHT said:
Device: SM-G920F
ROM: stock 7.0
Build number: nrd90m.g920fxxu5eqf1
kernel version and its settings: 3.10.61-10958180 [email protected] #1
Not rooted
So my phone has been acting up for good 6 months now. I was getting random reboots and freezes that would last anywhere between happpening just once or going on to continue for a day. Sometimes it gets so bad, that the phone would not work longer than a minute or so and would immediately reboot again. During the freezes the battery gets drained really fast (about 20-30% in 15 mins). If the phone freezes and I reset it (volume down+power) it just reboots and then it could freeze again in a minute.
I went to samsung and they told me it's a software problem, so they reset all the software. In less than a week it happened again, and yesterday it froze while at recovery menu, so it's probably not software. Today I went to Samsung again and they told me that if that's still going on, they have to change the motherboard (which would cost me like $320 and I'm better off getting a new phone anyway). So what would be your advice? Can it still be software related? Or can it be related to a hardware component that can be replaced separately from the board and I should try private repair shops?
Click to expand...
Click to collapse
Did you spill water on your phone in the past? may be left it in a foggy or misty area? try to remember. your phone shows symptoms of shorting in logic board. in that case approach a private repair shop that does ultrasonic cleaning. this will mostly fix your phone.

donco22 said:
Did you spill water on your phone in the past? may be left it in a foggy or misty area? try to remember. your phone shows symptoms of shorting in logic board. in that case approach a private repair shop that does ultrasonic cleaning. this will mostly fix your phone.
Click to expand...
Click to collapse
Thanks for your reply!
I did not spill anything on my phone, or have been in a foggy area for a while. There might have been some exposure to rain though. Is there any way to confirm water exposure as a culprit (as opposed to a broken motherboard) without disassembling the phone?

GREY_LIGHT said:
Thanks for your reply!
I did not spill anything on my phone, or have been in a foggy area for a while. There might have been some exposure to rain though. Is there any way to confirm water exposure as a culprit (as opposed to a broken motherboard) without disassembling the phone?
Click to expand...
Click to collapse
I am afraid thats not possible. you have to eventually open up phone to inspect logic board. i strongly recommend approaching to samsung service centre or a private shop(that does ultrasonic cleansing) rather than opening up yourself.

S10e bootloop despite flashing with Odin

To give some context, my S10e (Verizon SM-G970U) decided to boot loop out of nowhere. Since this happened, I have factory reset the phone, no success. I brought it to a local repair shop who said they couldn't fix it. Now I have flashed the phone with Odin and despite the phone being flashed it STILL is boot looping. At this point, I'm assuming something went wrong with the hardware but I don't even know where to start with that. If anyone has any suggestions I would greatly appreciate them.
Firmware used :
Download Samsung Galaxy S10e SM-G970U VZW USA (Verizon) G970USQU5GUBH firmware
Fast download latest Samsung Galaxy S10e firmware SM-G970U from USA (Verizon) with G970USQU5GUBH and Android version 11
www.sammobile.com

Vivala8955 said:
... it STILL is boot looping...
Click to expand...
Click to collapse
If it is a hardware issue (which sounds likely), there's an old electronics trick you might try: Power it off, put it in the refridgerator awhile, take it back out and power it on. This has work'd for me with stereo components, for example, as well as a phone. It once revived a hard disk drive long enough for me to capture important data. Oh, but the phone this has brought back for me, an S10e BTW, works only while still cold and has issues with charging while its temperature is low. Still may be worth a try.

MrGoodtunes said:
If it is a hardware issue (which sounds likely), there's an old electronics trick you might try: Power it off, put it in the refridgerator awhile, take it back out and power it on. This has work'd for me with stereo components, for example, as well as a phone. It once revived a hard disk drive long enough for me to capture important data. Oh, but the phone this has brought back for me, an S10e BTW, works only while still cold and has issues with charging while its temperature is low. Still may be worth a try.
Click to expand...
Click to collapse
Wow, I just did this and to my surprise it worked! Prior to this, I wasn't able to get past the Google sign in page on start up (on good attempts) but now I was able to get it all the way to the homescreen and even install some apps before my battery died. Any idea of what this could mean for the actual hardware? I.e. this means the battery needs to be replaced etc

Vivala8955 said:
Wow, I just did this and to my surprise it worked! Prior to this, I wasn't able to get past the Google sign in page on start up (on good attempts) but now I was able to get it all the way to the homescreen and even install some apps before my battery died. Any idea of what this could mean for the actual hardware? I.e. this means the battery needs to be replaced etc
Click to expand...
Click to collapse
Great; glad it work'd. Did you attempt to charge it while it was working? Mine actually took charging after warming up only a short time, once. Got it back all the way to 100% charged. But then it quit with dead black screen, and now revives only for a minute or two.
In the old days of individual transistors, we used to turn on a non-working electronic device and blast a shot of freeze spray on various components until the device started working; even with IC (integrated circuit) chips that have lots of transistors. This way, we knew which part needed replacement. But with today's phones, you replace the entire circuit board because the soldering is done by machines; it's too finely detail'd to replace one chip.

MrGoodtunes said:
Great; glad it work'd. Did you attempt to charge it while it was working? Mine actually took charging after warming up only a short time, once. Got it back all the way to 100% charged. But then it quit with dead black screen, and now revives only for a minute or two.
In the old days of individual transistors, we used to turn on a non-working electronic device and blast a shot of freeze spray on various components until the device started working; even with IC (integrated circuit) chips that have lots of transistors. This way, we knew which part needed replacement. But with today's phones, you replace the entire circuit board because the soldering is done by machines; it's too finely detail'd to replace one chip.
Click to expand...
Click to collapse
I haven't tried charging the phone when it's on. Only when it's off and has returned to room temperature. Seems to me that about an hour in the fridge equals about 5 minutes of screen on time until the phone heats up again.
As for the internal component's you bring up a good point. Even if I were to determine what is causing the issue, I don't have the will/technical know how to buy the parts and do it myself. Outside of just replacing everything, in which I'd just buy a new phone haha.

Vivala8955 said:
... I'd just buy a new phone ...
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Click to collapse
That's what I did. Look'd at lots of possibilities, ended up buying another S10e.

Pixel 3a always on and bootlooping, any suggestions?

Hello.
For maybe the 5th time I just took apart my old 3a that my son's been using. I was going to replace the battery, but turned out the battery I'd ordered (OEM and fresh from the wrapper) was bad (puffing up). Needless to say, I didn't replace the battery just now. The old one was managing ok, so definitely wasn't dead. I removed it carefully, so figured I could just reinstall it until I got a better one.
Having put the phone all back together (unfortunately, breaking the cable for the fingerprint sensor along the way, but AFAIK, that would have nothing to do with my problem), I found the phone was bootlooping. Not just that, but once I took it back apart, I found that as soon as I plugged in the battery to the motherboard, it started to boot. Holding any combination of buttons didn't stop the bootlooping. I'm just seeing the start screen (it's rooted) and maybe a flash of the Google logo, then back again. I can't turn it off without unplugging the battery.
So now I don't know what to do with the thing. I thought I'd just put it back together and let it limp along for a while, but suddenly it's hosed. Has anyone else experienced this kind of behavior and found any fix?
Thanks

JimDandy68 said:
Hello.
(…) as soon as I plugged in the battery to the motherboard, it started to boot. Holding any combination of buttons didn't stop the bootlooping. I'm just seeing the start screen (it's rooted) and maybe a flash of the Google logo, then back again. I can't turn it off without unplugging the battery. (…)
Click to expand...
Click to collapse
Never took my Pixel 3a apart, but first thing I'd check would be power button - it might be stuck (always pressed), might be "shorted".

Tamsta_T said:
Never took my Pixel 3a apart, but first thing I'd check would be power button - it might be stuck (always pressed), might be "shorted".
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Click to collapse
Thanks, @Tamsta_T
I didn't want to complicate the story, but I did also replace the entire power switch. No matter, it does the same thing with the old power switch, the new power switch, everything connected to the motherboard, or nothing connected at all except the battery. Also, whether or not it's plugged in. IIRC, the battery had over 60% charge when I started this morning, and it's been keeping the phone going for a whole day. I feel like something must be up with the motherboard itself, but don't really know.

Could the touch sensor being broken actually cause this problem? That's the only thing that's different. I don't even know how that cable got broken, as I tried to carefully remove it from the motherboard. But it's done, and to test that theory, I'd have to buy another.

JimDandy68 said:
Could the touch sensor being broken actually cause this problem? That's the only thing that's different. I don't even know how that cable got broken, as I tried to carefully remove it from the motherboard. But it's done, and to test that theory, I'd have to buy another.
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Click to collapse
JimDandy68 said:
I didn't want to complicate the story, but I did also replace the entire power switch.
Click to expand...
Click to collapse
how is power switch connected to the motherboard? Is that connection 100% intact nor damaged? By the way, if fingerprint cable is broken, maybe that connector is damaged too and is causing short circuit?
And can you enter fastboot or recovery mode?

Sorry, this might have gotten buried in my last reply:
it does the same thing with the old power switch, the new power switch, everything connected to the motherboard, or nothing connected at all except the battery
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Click to collapse
I don't have the broken fingerprint sensor cable attached at all. Tried it once, but figured that was pointless if not counter-productive.
I've also cleaned all the accessory contacts, including the one for the power switch, using 91% isopropyl. The only thing I haven't done, and the last thing I can think to try, is to really hit the motherboard with compressed air, especially the contact for the power/volume switches. I just know it worked fine after taking it apart multiple times, before this last time.
If it's not some damage to or debris in the power-switch connector, at this point I'm thinking the motherboard's gone bad in some other way.

Asked over in iFixIt, and was informed that it may well be that not having the fingerprint sensor attached could cause POST to fail, so I'm going to try a new one and see if that helps.

JimDandy68 said:
Asked over in iFixIt, and was informed that it may well be that not having the fingerprint sensor attached could cause POST to fail, so I'm going to try a new one and see if that helps.
Click to expand...
Click to collapse
New fingerprint sensor, per this recommendation. Phone still endlessly bootloops. Seems to be permanently powered on, cannot stay in bootloader/fastboot mode for more than about 2 seconds. The buttons all register -- e.g., if I hold down all 3, the phone goes black, but only until I release them. There seems to be no way to intervene in the problem. I think I may have to give up on this, unless anyone has further suggestions (beyond a new motherboard, since I've already invested too much time and money in it).