Galaxy A7 2017 touchscreen not responsive - Samsung Galaxy A3, A5, A7 (2017) Questions & Answe

Hello,
I've a very strange problem with my father's A7 2017, the touchscreen randomly become unresponsive, but the hardware buttons and the entire system are working fine for example if a video is running in YouTube app it will continue to play and if I press the home screen hardware button it will show the home screen.
And here is the strange part: if i pressed the power button to turn off the screen and turn it on again the touchscreen will work again normally and then freezes after multiple seconds or minutes.
I tried lineageos 18.1 and different stock ROMs but still have the same issue. any ideas or suggestions?
Thanks.

Related

3 Sec Screen display delay

Hey guys,
I am having a weird issue,
so today i had a pinch and installed latest CM11 build on my Note 2 using latest CWM. Everything runs perfectly but when i press the power or home button to turn screen on, it lags for over 3 seconds and then screen shows up. same is the case with shutdown.
Furthermore the same thing happens when i receive a call, i stare at the screen with the ringtone playing in the background until the screen shows up. Otherwise everything seems OK.
In my frustration i installed latest version of SlimKat rom but the same issues persist. Anyone got any clues?

[Q] Display and touch screen major issues following lollipop update.

Problems with my Samsung Galaxy Tab S 8.4 SM-T705:
1st: October 2014
2 weeks after buying, my tablet's battery drained overnight from 45% to zero. Next morning, I turned my tab on after charging to find out that the Tab starts but without any Samsung GAlaxy Tab S logo or Samsung Logo and the Screen has turned green, rendering it difficult to read in auto brightness mode or low brightness mode.
I restarted the device 2-3times and the device started working normally. This was my 1st device restart. I never used to power off the device before.
In 1st 6months, this greenish display problem n logo problem occured 2-3times, and i ignored it, because, it used to get resolved by itself with restart and I had no service centre in and around 50km to my work place.
2nd: January 2014
My device all of a sudden stopped working.. actually hanged.. I managed to turn it off but failed to restart it.
Later I realised that the device has restarted, but the screen was not responding when the screen blinked for a moment with the opening of book cover.. and the back cover of device was warm..
Googling taught me the way to access recovery screen n I opened recovery mode with "power+vol down+home key" and pressing vol down in recovery screen to restart tab.. again the tab started working fine..
3rd: Lollipop update: May 2015
I did Lollipop update. The device was smooth to operate at first. But gradually, i noticed that unlocking the tab failed to light up the display everytime, just the soft keys lighted up. But one day, the device freezed with no response from touch screen. I was unable to switch off the device also.. I had to drain the battery by playing music using S voice to turn the device off. "power+vol down+home key" too was not working.
On googling, I learned to reset device with "power+vol up+vol down" keys pressed together. finally the device restarted, but the device used to hang occassionally.
Googling let me know that i need to factory reset device upon firmware update for normal functioning, which i didn't do after update. so, I backed up my device, uninstalled many apps to make the device run a bit smooth and did a factory reset.. Resetting didn't improve the situation much, but now, the device display failed to light up on a regular basis on unlocking most of the time..
Now the situation is that, the device turns on, finger print scanner works, all apps n everything working, but display remains black, and touch screen is not responding.. using sidesync, everything on Tab can be accessed via laptop.
Tricks tried:
1) Factory reset
2) power+ vol up+vol down
3) power+ vol up+home key
4) power+ vol down + home key
5) Power off using sidesync and then restart
Results: All failure. Everything works but the display never lights up normally..
Plzz help....:crying::crying:
Bump. I'm starting to have similar problems with my SM-T800 running 5.0.2. I open the cover and the device fails to turn on. I press the power button and the screen stays black but the notification bar turns on. I can shake the crap out of the device and the screen stays black but I can see the notification bar flicker. Driving me batty.
If i had any problems like you guys, I would just return it to the place i bought it, for a refund or replacement or even a repair, post it to the service centre if it`s too far to travel too.
You problems sound like battery and or loose connector inside your tablet, it happens frequently on Samsung tablet for the connectors to come loose, if the tablet is dropped or twisted, no outside damage might be seen.
John.

Problems after Nougat update-Samsung Galaxy A5 2017

Hi,
I have been noticing some problems in my Galaxy a5 2017 after updating to nougat (India).
1) the battery seems to be dropping much faster
2) screen does not go blank during calls. That is the proximity sensor should blank the screen when the phone is lifted to the ear and come on again once its taken off. But that does not happen at times and I have to restart the phone after which the problem goes away for sometime and reappears again. I have installed Smart Screen On/Off (from Luutinhit), Home touch and Volume on my phone.
I have installed Smart Screen On/Off so that I do not have to keep pressing the hardware power key all the time to lock the phone.
Home Touch is installed as I do not want to press the hardware home key all the time I want to go to the home screen.
Volume is installed to avoid pressing the volume hardware button all the time I wish to change the volume for each app.
Is anyone facing the above issues?? Also are the above installed apps responsible for the erratic proximity sensor behaviour??
If anyone could suggest alternate good apps that work well with finger print sensor I would be grateful.
Thanks,

amazon fire phone's keys stopped working

HI, please help, after one month using Miui 7 on my amazon fire phone, suddenly volume up, volume down, camera and home buttons stopped working at the same time (power button jammed a years ago), how to solve this issue?
Thanks in advance
Same issue with my fire phone
I remember having the same issue with my phone, all button stopped working: home, power, volume up/down, camera
The touch screen worked fine though.
If i needed to use the phone i had to hold down the power button to reset the phone :|
I ended up installing an app that woke the phone every time i held it in a horizontal position, which made the situation bearable.
After about 1-2 months just as i was about to buy a new phone, all buttons randomly started working again!
Factory reset did nothing
Sometimes if i pushed hard on the home/power button i could get the screen to turn - which led me to believe that there was some dirt stuck somewhere in one of the buttons. (why that would stop all buttons from functioning is beyond me)
Solved
Dear friend, thank you very much for your respond.
I disconnected battery from my fire phone then connected it again. So result is amazing. All the buttons work again.

Random screen off on streaming

After oreo update my Verizon note 8 started to turn off the screen right after play a video on Facebook and some other apps, sound continued playing and touch also respond but screen remains black, in order to get the screen on again I had to press power button twice.
The solution for my case was: go Android settings/screen/full screen apps/all apps
Just reboot and the bug was fixed

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