Touch screen stopped working all of a sudden. Registers random inputs - T-Mobile LG G4

Hey, so my phone has been working fine and then all of a sudden I tried to double tap to turn the screen back on and it didn't work. So I pressed the power button and the screen turned on but I couldn't drag to unlock the screen. I tried tapping all over the screen and dragging and nothing make it unlock. I held the power button down and tried to select to power off, power off and restart, airplane mode, or cancel and none of them worked either. I took out the battery and put it back in and still nothing. The touch screen wouldn't register my inputs but would instead register random inputs throughout the screen and then stop doing that. I took the battery out and put it back in and even in TWRP it would register random inputs and then stop doing stuff altogether. I don't know what the heck to do.

sohungry said:
Hey, so my phone has been working fine and then all of a sudden I tried to double tap to turn the screen back on and it didn't work. So I pressed the power button and the screen turned on but I couldn't drag to unlock the screen. I tried tapping all over the screen and dragging and nothing make it unlock. I held the power button down and tried to select to power off, power off and restart, airplane mode, or cancel and none of them worked either. I took out the battery and put it back in and still nothing. The touch screen wouldn't register my inputs but would instead register random inputs throughout the screen and then stop doing that. I took the battery out and put it back in and even in TWRP it would register random inputs and then stop doing stuff altogether. I don't know what the heck to do.
Click to expand...
Click to collapse
Turn off your phone and inspect the screen. You may have some spot of oil that causes multiple touch inputs. Other temperature conditions that introduce condensation can have the same effect.
If not hardware, try to get to your recovery with and and make a backup first.

Related

[Q] Power button long hold- Menu is gone!?

Like the title says... holding the power button does not produce the "Shut down, restart etc" menu anymore. It locks the screen just fine and dose force feed back upon long hold but no menu pops up...any ideas whats up?
This just happened recently.
Also sometimes when I unlock the phone it randomly presses either the home key or back button. Any ideas on this as well?
the first is a software problem, a reflash should fix it.
the second is a hardware issue, could be caused by humidity inside the phone, remove everything from the phone (battery, cover, cards) drop it ina bag of rice for a few hours to soak up the moisture. if that doesnt work then if you're still under warranty you could get it replaced.

Black screen but touch screen works?

Hello, sorry if this has been answered, i did a search for black screen and didn't find the same thing.
Basically my nook hd+ is about 2 months out of warranty. When i try to power it on, i can see the screen light up but nothing is displayed (its all black and dims slightly). When i was messing with it trying to reset it, it started to read aloud the applications i touched on or button i pressed. So the touch screen is still working even though it's not displaying anything. I tried to hard reset it, by holding down the buttons and pressing the n twice, but that didn't seem to work either. Anyone got ideas?
Don't know what that is -> "holding down the buttons and pressing the n twice".
But if I had this problem I would...
Hold down the power button for >10 seconds as this completely turns off the device, then attempt to turn it back on.
And if that failed to work... let it sit and run out of battery, then plug it in to the wall usb adapter, let it charge for an hour, then try powering it on with the power button.
And if that failed to work, since its outta warranty, buy something that works.
But that's only what I would do

Power Button overreactive/stuck

Hello guys,
so I woke up this morning and found my phone lying on the floor still connected to the charger. When I tried to unlock the screen everything was phone, but when I tried to relock the screen it kept popping up the power menu. Also I noticed that the powerbutton had moved a bit more to the inside of the phone. Sometimes it turns off the screen but immediately after turns it on again. I can turn the phone off but it will instantly reboot.
Any solution? It's kinda a pain in the *** that I can't switch off the phone...
Thanks in advance
fix
The same thing happened to me last week i was very pissed of. Then i tryed the safetypin and itr worked. So what you do is remove the button but making the safety pin go in the small gaps of the powerbutton and then pull it out. If it is not damaged to much just put according to your need so all the functions work. Another fix is get a new power button and put it in the power button hole it should work now. If this helped please hit the thanks button

Black Screen, won't do anything.

Hello,
I have a rooted and TWRP installed but otherwise stock 5.something T710 that I had worked on months ago. It's been great and my daughter had been using it to watch videos a couple days ago. I took the tablet from her at the end of our road trip and noticed it had about 63% battery left. I left it in the truck while we went to the movies(about 40 degrees f outsides) and then drove home without ever touching it until we got home. I went to use it when we got home and it would not turn on. I plugged it in to let it charge thinking it died for some reason, using the stock charger, though battery icon never appeared. The next morning I went to check it and it still would not turn on.
When I press the power button or plug in or unplug the charger the Recent and Back soft key lights will turn on for a second, then turn back off again.
I've tried:
Holding the power button down alone for over 3 minutes.
Held the power and volume up button for over a minute
Power and volume down for over a minute.
Home, volume down and power for over a minute
Home, volume up and power for over a minute.
I can connect it to my computer and it recognizes that my Tab S2 is connected but no files show as the default for the device was just charging mode and not the file modes.
Odin3 v3.10.7 recognizes it as connected. But fails to send the TWRP file again.
Any help?
Since the soft keys light up and the computer recognizes the device, it sounds like maybe the tab is still working but with no display? By any chance did you have adb working? I f so you could try rebooting, or booting into recovery to see if you see anything on the screen. It's possible that when you held the button combos, that it did boot into download and recovery but you couldn't see anything? In which case it could be a hardware problem. Hopefully it will fix itself! Sorry I can't be of more help..
Well adb shows the device as unauthorized. Reboot command says the same thing.
The home key is unresponsive to my finger print unlocks and no sound plays when I try to adjust the volume, like the ding sound it makes to hear if this is the volume level I want. There are never any of the capacitive touch vibrations or whatever its called to feel when you press a button on the screen.
I was wondering if it had something to do with hardware it's just strange that it would stop working from just being in my truck. From my knowledge it was never dropped or bumped heavily or anything, at least recently.
I guess it is possible something just burned up inside, that would be inconvenient, I've got to look up if its still in warranty. I love the size and performance of this thing.
Thanks for replying, hopefully more to come.
Still can't get it to work, same issues as above. I let the battery fully die which took about 2+weeks from the initial post. Which is to say that eventually the back and recent buttons stopped lighting up. I recharged it and after holding the power button for a few seconds the same condition repeated itself. If I touch the power button or home button the back and recent button back lights turn on for a moment and turn off again. There is no other indication of life. I would assume if it was just a dead screen then I should feel it try to turn on.
If I had to replace parts which ones should I look at first? Probably just the main board?
Buy a new one. Send yours in as defect. Done.
erase111
I see that is an old thread, but I having the same issue to a certain degree. The screen goes dark, but I can see the back light. If I play around enough times, (pressing the back and process button, before pressing the sensor button... Sometime, pressing the volume buttons and back button before pressing the sensor button), everything goes back to normal. Of course, it some random time, even when I am reading a web page or some other activity, it will go back to black.
So has anyone figured out what this issue actually might be? I thought maybe it was an issue with the ROM I was using, so I just moved over to LineageOS 16, but the problem still continues!

Power button doesnt wake up the phone.

Hi,
My note 8's screen got damaged a month ago, but
from past two days the power button seems to be
unresponsive.
I have to press it atleast 10-15 times for my screen
to wake up.
Even if the screen doesnt turn on by a single click,
the usual touchscreen functions still work.
Ex: I can still open the particular app by clicking the screen
on the specific area.
Kindly help.
rockz1991 said:
Hi,
My note 8's screen got damaged a month ago, but
from past two days the power button seems to be
unresponsive.
I have to press it atleast 10-15 times for my screen
to wake up.
Even if the screen doesnt turn on by a single click,
the usual touchscreen functions still work.
Ex: I can still open the particular app by clicking the screen
on the specific area.
Kindly help.
Click to expand...
Click to collapse
There's nothing any of us can do to help you when it's a hardware issue like this. You need to open the back of the phone using a heat gun to loosen the glue and then take the power button out and replace it with a new one.. There's nothing else that can be done and I would suggest that you not shut the phone down or let the battery die out because then you may not be able to turn it back on until you get the power button taken care of!
MrMike2182 said:
There's nothing any of us can do to help you when it's a hardware issue like this. You need to open the back of the phone using a heat gun to loosen the glue and then take the power button out and replace it with a new one.. There's nothing else that can be done and I would suggest that you not shut the phone down or let the battery die out because then you may not be able to turn it back on until you get the power button taken care of!
Click to expand...
Click to collapse
Hi MrMike2182,
Thanks but let me elaborate the issue.
The power button seems to be working fine because it takes approximately 10 to 15 clicks to turn on the screen (sometimes 1 or 2 click)
Let's say that I click the power button and the screen doesn't turn on, the screen functions work fine despite showing black screen.
Ex:
1. If I click on screen location where samsung music is placed and open it, and if I and click on the location of the play button, it plays the music just fine.
2. If I click on the restart button when the screen is black (not turned on), the phone does restart. The Samsung logo lits up just fine. (Mensing to say, the bootup process is not affected)
Also, note that if I successfully manage to turn on the screen after clicking the power button 10-15 times and if I put it to sleep again. I can easily turn on if I click the power button immediately (within the span of 2 seconds).
The problem persists only if the phone is kept I'd for 5 to 10 minutes.
rockz1991 said:
Hi MrMike2182,
Thanks but let me elaborate the issue.
The power button seems to be working fine because it takes approximately 10 to 15 clicks to turn on the screen (sometimes 1 or 2 click)
Let's say that I click the power button and the screen doesn't turn on, the screen functions work fine despite showing black screen.
Ex:
1. If I click on screen location where samsung music is placed and open it, and if I and click on the location of the play button, it plays the music just fine.
2. If I click on the restart button when the screen is black (not turned on), the phone does restart. The Samsung logo lits up just fine. (Mensing to say, the bootup process is not affected)
Also, note that if I successfully manage to turn on the screen after clicking the power button 10-15 times and if I put it to sleep again. I can easily turn on if I click the power button immediately (within the span of 2 seconds).
The problem persists only if the phone is kept I'd for 5 to 10 minutes.
Click to expand...
Click to collapse
Ok based on what you said now I don't believe there's anything wrong with your power button and when you press it and the screen doesn't turn on, in reality it actually is on and it's possibly damaged which is why you can still use the screen functions with the black screen. Whatever type of damage you say happened to it could be causing the backlight to not work but the screens touch function is fine.. Try rebooting into recovery mode and select to clear the phone's cache only and see if it helped anything.. If it doesn't help anything it's pretty much a screen hardware problem and you'll still have to get into the phone's internals..
MrMike2182 said:
Ok based on what you said now I don't believe there's anything wrong with your power button and when you press it and the screen doesn't turn on, in reality it actually is on and it's possibly damaged which is why you can still use the screen functions with the black screen. Whatever type of damage you say happened to it could be causing the backlight to not work but the screens touch function is fine.. Try rebooting into recovery mode and select to clear the phone's cache only and see if it helped anything.. If it doesn't help anything it's pretty much a screen hardware problem and you'll still have to get into the phone's internals..
Click to expand...
Click to collapse
Thanks,
Unfortunately, even factory resetting the phone didn't work out.
Anyway, I will take for service.
Hopefully it might resolve the issue
rockz1991 said:
Thanks,
Unfortunately, even factory resetting the phone didn't work out.
Anyway, I will take for service.
Hopefully it might resolve the issue
Click to expand...
Click to collapse
Since the factory reset didn't work, then unfortunately it really is a hardware issue.. I think you need a new screen..
I have the official led cover case, just opening the case will turn the screen on... Just a temp fix until you can get it repaired maybe.
stonedpsycho said:
I have the official led cover case, just opening the case will turn the screen on... Just a temp fix until you can get it repaired maybe.
Click to expand...
Click to collapse
Thanks stonedpsycho. I will have a look at it.

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