touchscreen not responding - Xperia Tablet Z Q&A, Help & Troubleshooting

I just purchased my Tablet from amazon and now having problem with the touch screen responding from time to time. it won`t unlock lockscreen sometimes it work after i reset but only for a while. has someone had this issue and knows of any fix?

This happened to my Xperia Z phone a while ago. Sometimes touch screen stops working entirely, have to reboot or do some voodoo with power button/lock screen. Have you done something that helped resolving this? I'm quite tired of rebooting when I need to make a call...

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Touchscreen unresponsive

Suddenly I'm experiencing my touchscreen locking up. Sometimes immediately after reboot, other times it might happen after a few minutes or hours.
The volume and power buttons still work, and the accelerometer can flip the screen.
When the issue occurs all I am able to do is hold power for 10secs to force the tablet to reboot.
This has only started happening in the last 24 hours.
I haven't installed anything new.
Running stock rom 4.0.6 + GoLauncher.
I have recalibrated.
Anyone else experienced similar?
Any ideas what I can do to fix it?
Yesterday I really thought my device was broken.
After the issues above I began to have a situation where I had to reboot but as soon as my device booted I was locked onto a 'homescreen' that I hadn't defined; it was on a secondary homescreen but my touchscreen was completely inactive!
I managed to boot into 'safe mode' and my touchscreen worked fine on the default launcher.
I rebooted and GoLauncher HD loaded up fine with my screen also perfectly responsive.
For 24hrs since I have had no problems whatsoever.
I suspect GoLauncher HD may be buggy?!?
QUESTION How did I boot into safemode? I did it by accident!

few tablet issues; wifi, screen flash, touch, shut downs

Just bought one... have the newest update but my wifi still shuts down once I hit the power button and i am unable to find a fix. Second every now and then, and becoming more frequent, when i touch the screen a black oblong shape will flash black ( almost like a thick lighting bolt shape) about a third of the screen. Has anyone else had this happen? Also The touch screen itself wont respond properly, I have to touch multiple times sometimes to get a response.( not to frequent but enough to be an annoyance ) lastly it will power off a random at least 1-2 times daily. Other than that I like it, just has a few bugs to work out.
The screen flickering and wifi have always been bugs with both Sony Tablets with the later being fixed in release 5, or at 'seast it should've been, if thats what your on.
shouldnthaveboughtthis said:
Just bought one... have the newest update but my wifi still shuts down once I hit the power button and i am unable to find a fix. Second every now and then, and becoming more frequent, when i touch the screen a black oblong shape will flash black ( almost like a thick lighting bolt shape) about a third of the screen. Has anyone else had this happen? Also The touch screen itself wont respond properly, I have to touch multiple times sometimes to get a response.( not to frequent but enough to be an annoyance ) lastly it will power off a random at least 1-2 times daily. Other than that I like it, just has a few bugs to work out.
Click to expand...
Click to collapse
For the wifi problem you can try installing "Advance Wifi Lock" (google play).. just install the free version, that should fix your problem.. let me know if it work!
What device?
If it is the Sony Tablet S, factory reset to fix most issues but there will be a few issues like screen flickering hidden in the settings while changing notification sounds and a few system server issues where the OS crashes to the boot animation and then System UI crashes, system server crashes in to a bootloop of crashes and stuff.
So system server/system UI is a bug sometimes.
Sent from my Sony Tablet S using xda premium

Install a new screen.

After installing just a new glass screen my phone has been acting weird. Every once in a while it will freeze up and do nothing, the notifications still running like battery animation and signal but the screen won't respond. I can hit the home button to return to my home screen and after a few seconds it starts responding to my input again. Just wondering if anybody else has experienced something like this. I have switched roms, wiped all kinda ways and factory reset but it still happens from time to time. I might have screwed something up while changing the screen. Any kind of help would be appreciated, thank you.

Phone not not locking screen

Hello
Sometimes my phone doesn't lock the screen.
The problem disappears when i restart the phone.
Lock timer is 5 seconds.
Any one have the same problem?
cyber kamikaz said:
Hello
Sometimes my phone doesn't lock the screen.
The problem disappears when i restart the phone.
Lock timer is 5 seconds.
Any one have the same problem?
Click to expand...
Click to collapse
What is your screen time out set to? doesn't help if both aren't set to the same time
I'm having the same issue: lock screen not working/keyguard not activating. My G2 Mini is only one month old and it already did this for three times. The only solution was to make a factory reset, which is quite unpleasant. The first time it apparently did this after I had used Gravity Screen on my phone. The other two times I don't know what may have triggered the bug.
It seems that I have to do once again a factory reset. Anyone else experienced this bug? Any ideas instead flashing kdz again? I hope the most awaited Lollipop update would solve this issue for my device.

Question [Solved] Bootloop noticing after MIUI 14 Update

Firstly I wanted to clarify one thing that my phone worked okay after the update. I didn't realise it has updated until after a boot loop.
Just FYI The camera in my phone have been crashing randomly when taking pics and the pics weren't having the full resolution. It was 1280x720. This wasn't an issue for me and I ignored it for like 3-4 months.
So my redmi note 10 have had some random reboot issues lately which i didn't give much attention to. It wasn't frequent just rare random reboots. Few days back I noticed my phone rebooting while in use and it started to loop for a few times and when it loaded into lockscreen right after unlocking, the power button started to press automatically triggering the power option screen and then the emergency calls as well. It stopped after a few taps on the power button.
A day or two later it rebooted once again while the recorder was on and and this time it boot looped a few times and showed the lockscreen and crashed booting back once again. A few tries after that it booted up and I was able to use it for another day.
The very next day, it did the same. Started to boot and loop once again. But this time when the battery is sufficient enough or the phones cool and haven't been used for a while, it boots into lockscreen but freezes and crashes. At one occasion, it stayed just a few more seconds long enough to open the passcode screen but crashes before I could type anything. Then it loops once again and before even reaching the lockscreen, boots back into MI Android Powered screen right after the three dots blinking page. And randomly it boots into lockscreen as well. But once the battery is down or the phone is heated enough, it barely goes into lockscreen.
Booting into safe mode also shows the same. It sometimes boots into lockscreen but doesn't show the 'safe mode' text in the bottom.
Right now when I had kept my phone off for a while it booted into lockscreen twice and the screen dims immediately before freezing and crashing.
The third time it just went back to the MI Android powered logo right after the three dots blinking screen.
Guys please let me know do you think this is a hardware issue or a corrupt software update?
I know software update issue can cause bootloop but does it reach till the lockscreen? My phone consistently gets into the lockscreen when the battery is sufficient or the phones cool enough.
What last update did you perform?
carlos974 said:
What last update did you perform?
Click to expand...
Click to collapse
MIUI 14 which i didn't even realise until I checked the settings app one day after a boot issue
What version do you have?
For me see screenshot, works fine!
Backup your data and clean flash with Mi Flash Tool, you can then exclude any software problem
This issue have been resolved.
The issue was the CPU couldn't handle the heat once the device turned on and would reboot right after reaching the lockscreen and loops.
Thank you for all your suggestions, though.
Dheerajvirgo said:
This issue have been resolved.
The issue was the CPU couldn't handle the heat once the device turned on and would reboot right after reaching the lockscreen and loops.
Thank you for all your suggestions, though.
Click to expand...
Click to collapse
May I know how did you fixed the issue? I'm stock with same situation as you. Did you change any hardware?
Hey, my mi 10 5g has similar symptoms - random restarts + random switch on power button without pressing it...
all this came after upgrade from miui 13 to 14..I use this phone for 1,5 yr with no problems...
Phone get hotter also...
Is it related to bug?

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