the screen turns off and on - Sony Xperia XZ Questions & Answers

Hello. I dropped my phone and the screen broke and replaced it with a new one, but I use it stably when I restart the phone, the screen turns off and on several times when I put the phone to sleep and wake it up again.
after this shutdown and power-on process is finished, the phone begins to freezes
there is nothing in the special software, this problem occurs in the original software
Could it have something to do with the proximity sensor?

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Sensorlock issue?

I installed the latest SensorLock version, it worked normally till today. My TP didn't respond with any gesture and TP screen always lock, even on external power, I have to reset to unlock my phone. And another issue, but I don't know it caused by Sensorlock or not, when I turn off my TP by Power button, the screen turn off and then immediately wake up few seconds before completely goes off. Any suggestion? Thanks.

[Q] Can't see anything on display

WARNING: not a native english speaker.
when I try to start the phone the following occur:
the display light turns on, shortly after that the phone emits that startup vibration, the backlight remains on for aprox. 85 seconds then the phone aparently shuts down. that meant, the backlight of the display turns off.
problem history:
I was at work and as usual i was listenin to music via handsfree. while my phone was in poket it seemed that somehow my poket pressed the sleep button and turned the screen up. no prob here. i got the phone out of ma poket. reverted the volume @ maximum and then locked the phone and turned the screen off and putted back in pocket. after some time i wanted to change the song. got out the phone, turned on the screen but nothink apeared except a horizontal line in the middle of the screen. I tried to shut down/up the screen but nothink apeared. after a couple of tries the screen turn on but it was unusual what i saw on it. I saw a sketch of the energy rom home screen with diferent colors.
Meantime i was tryng to get the screen outta sleep the music still played in the phones.
I thaugt that a reset will do but it didn't. got out the battery and got home. reasembled it, powerd up the phone and voila! the phone started up normaly. got out the battery, introduced the sim card. powerer up the phone but bad luck. the happiness was short lived. the problem camed back. another thing i noticed is that when i powwer on the phone i let it on but it wont output that energy rom bootup sound.
Can someone elude me with whats the problem with my phone?
hope I was clear enough!
Have a great day/night!
UPDATE: LEFT IT OVERNIGHT WITHOUT THE BATTERY AND NOW ASSEMBLED BACK. IT'S WORKING BUT I THINK IF I GIVE A RESTART THE problem will come back.

Nexus 5- Screen won't turn on after call

As the title says the phone's screen won't turn on after I ended a longer call, i have to press the power button to get the screen working.
Did it happen to you also?I have this phone for 2 months but it never happened in the beginning, this seems to be a recent issue.
Is it a hardware issue or a software bug?I've tested the proximity sensor and it works just fine as much i can tell, it switches the screen of and on, it never happened to wake the screen during a call and to activate random keys.
Another strange thing that i noticed during a call:If have the keypad up and i lay the phone horizontally the screen won't turn off if i hover my hand over the proximity sensor but if i put the phone vertically the screen goes off or if i hide the keypad the screen also goes instantly off.

Moto g 2nd generation display turns off

When I start my Moto G2 (XT1038) from cold, the entire boot animation plays and the home screen shows and the phone works fine. The moment the phone is locked and I press the power button to turn the screen on and entire my pin, the area near the microphone heats up rapidly to a point where I can not touch the spot for more than a few seconds. The screen stays blank though. After a few minutes of inactivity the area cools down. But if I try to turn the screen on the same thing happens. Meanwhile, I can hear the alarms I have set in my phone, go off at designated times, can hear the incoming phone call rings, SMS / message notifications, etc. But cannot get the screen to come on after the initial bootup. Can not turn off the phone either, same thing happens. Battery lasts as usual. No heating issues while charging. Any ideas why this might be happening? It is running Marshmellow at the moment, and the update happened many weeks before this issue. Auto-updates are turned off.
Not sure if I need to replace the display or battery or some other hardware.

[LCD Replacement] Screen doesn't light up after sleep

Hello everyone,
I bought a LCD replacement for my OPO, and asked a friend to replace the screen (he had his own OPO, and changed the screen on it a couple times, so I trusted him).
The frame was not included, so the phone is without it unfortunately.
But I have this problem with the screen itself...
I boot the phone, everything goes well, it boots, everything ok, I can do everything...
Then the phone goes to sleep after the 30s, and sometimes when I press the button to turn it on, the lights in the bottom light up, I can hear sounds, I can swipe to answer calls for example, but the screen stays all black.
If I press the power button to turn it to sleep mode and then click again to wake it within 1 or 2 seconds, it works everythime.
Its just when it goes to sleep... And then I have to press the power button to reset the phone, and it boots again.
I'm using the LineageOS Rom, and I never had problems like this before replacing the LCD.
What caused this? Could the screen be "broken" when I bought it?
Thank you for reading this and for the help!
nunong21 said:
Hello everyone,
I bought a LCD replacement for my OPO, and asked a friend to replace the screen (he had his own OPO, and changed the screen on it a couple times, so I trusted him).
The frame was not included, so the phone is without it unfortunately.
But I have this problem with the screen itself...
I boot the phone, everything goes well, it boots, everything ok, I can do everything...
Then the phone goes to sleep after the 30s, and sometimes when I press the button to turn it on, the lights in the bottom light up, I can hear sounds, I can swipe to answer calls for example, but the screen stays all black.
If I press the power button to turn it to sleep mode and then click again to wake it within 1 or 2 seconds, it works everythime.
Its just when it goes to sleep... And then I have to press the power button to reset the phone, and it boots again.
I'm using the LineageOS Rom, and I never had problems like this before replacing the LCD.
What caused this? Could the screen be "broken" when I bought it?
Thank you for reading this and for the help!
Click to expand...
Click to collapse
Well,clearly the issue is lcd itself.Happened with me on my last screen replacement,it was defective.Though in my case,I had to power on/off the device to get the display back.Get a refund or replacement,there's no other alternative.

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