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Phone keeps popping out of suspend

The screen keeps blinking back to full brightness, every 30 seconds or so, when it is left alone and the screen dims normally. It is as if something is pressing a button or touching the screen.
When I press the power button and send it to suspend mode, the backlight goes off, and the tilt no longer responds to touch or button pressing. For some reason it pops itself out of suspend and turns back on every couple minutes. My battery life is going down extremely fast. 100% to 40% in three hours.
Any help would be greatly appreciated. I searched the forum but never found a specific topic for this issue.

MiniDevil said:
The screen keeps blinking back to full brightness, every 30 seconds or so, when it is left alone and the screen dims normally. It is as if something is pressing a button or touching the screen.
When I press the power button and send it to suspend mode, the backlight goes off, and the tilt no longer responds to touch down extremely fast. 100% to 40% in three hours.
Any help would be greatly
appreciated. I searched the forum
but never found a specific topic for
this issue.
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Click to collapse
I have the same problem w
th the backlight comming on by itself & battery life depletes extremely fast. I am using HD 15 Nov with 3.29.
In addition to backlight issue my hardware keys are no longer working.
Please has anyone got any advice

i have the same problem. the only thing that seems to work is doing the keypad lock and putting it to sleep. it will occasionally blink like its trying to come back on but doesnt. another thing i did is put my phone in flight mode, locking the keypad and putting it to sleep. when i do that it doesnt blink or anything. sadly i wont receive phone calls or emails and texts. i think the blinking has something to do with phone signal and accessing the networks.
hth
also i noticed that it wakes from sleep when the keypad "unlock" screen pops up.

i think i found a fix
Ok I hope this helps for you because it seems to work for me. I first went to start/settings/sounds & notifications. Then I clicked on the notification tab and unchecked everything leaving only the ringer on for when calls come in. when I did that, for about 5 minutes (longest I tested it at) the phone did not turn on and the backlight didn’t do that weird grayish flash thing. Afterwords I at first was going to go down the list of all notifications and turn things on/off to see what wakes up my phone but i got too lazy and only checked one setting. One thing I noticed is that when I have the beam: autorecieved notification turned on for display a message on the screen I get that weird backlight flickering thing. So for now I just have sound alerts on when I receive any type of messages and a sound alert for reminders. So far so good, my phone hasn’t woken from sleep in 20 minutes.

lock screen not auto tuning off

had something odd happen to my phone on the weekend. I pressed the power button (to wake it up) so I could quickly see the time and temp and I put it down, came back to it 3 hours later and the screen was still on.... (on the locked screen)
I unlocked it and locked it again and it wouldn't turn off the screen without me hitting the power button to do it
This happened last night as well and I noticed that it dimed the screen and stayed on when sometimes I see it dim then turn off a second later. Rebooting it makes it go back to the usual turning off after 10 or so seconds
I posted this on the aussie Whirlpool forms and someone else has said they have seen the same thing happen

sorry should have put in that I am on the 4.2.2 update on the Australian unbranded handset

chippyaus said:
had something odd happen to my phone on the weekend. I pressed the power button (to wake it up) so I could quickly see the time and temp and I put it down, came back to it 3 hours later and the screen was still on.... (on the locked screen)
I unlocked it and locked it again and it wouldn't turn off the screen without me hitting the power button to do it
This happened last night as well and I noticed that it dimed the screen and stayed on when sometimes I see it dim then turn off a second later. Rebooting it makes it go back to the usual turning off after 10 or so seconds
I posted this on the aussie Whirlpool forms and someone else has said they have seen the same thing happen
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Click to collapse
Try going to Settings -> Display -> Sleep and then selecting your preference, that solved it for me. It seems that sometimes this setting doesnt get recognized, so you have to select it again.

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!

screen wont turn back on unless above 85% battery

I have a G800F,
If my phone is below 85% and id turn of the screen, it wont turn back unless its back charged atleast 85% then everything works fine, I can use my phone till 0% if i dont turn off the screen, when the screen is off everything still works (i can hear it reacting when i press on the screen etc.
Tried different batterys but nothing changes.
Also my menu and back button wont work permanently no matter the battery percentage, the lights dont even turn on (sometimes it flickers) but my home button works.
Tried googling for answers but it seems i'm the only person with this problem.

Turnad0z said:
I have a G800F,
If my phone is below 85% and id turn of the screen, it wont turn back unless its back charged atleast 85% then everything works fine, I can use my phone till 0% if i dont turn off the screen, when the screen is off everything still works (i can hear it reacting when i press on the screen etc.
Tried different batterys but nothing changes.
Also my menu and back button wont work permanently no matter the battery percentage, the lights dont even turn on (sometimes it flickers) but my home button works.
Tried googling for answers but it seems i'm the only person with this problem.
Click to expand...
Click to collapse
Sorry for Late response, but in this S5Mini forum nobody wants to help.
I think you should do this:
-Go to recovery mode and look if screen goes black after some time.
If
Yes: Bring to repair
No: Install a custom Rom and / or try wiping Userdata.
Hope it works! Have a nice day.

I have a couple problems myself with the G800Y variant, whenever my phone switches off (shows the idle screen with green battery and %) I always seem to struggle to turn it on. My fix for this however is to:
1. Unplug charger (regardless of state unless like dead or something)
2. Perform the key combo to enter download mode/reset the phone: [POWER] + [HOME] + [VOL-DOWN]
3. Hold until you see something (the logo, the S5 Mini or the CM/LineageOS variant I'm using appears to take some time to perform the download mode entry) THEN release. If it hits download mode, simply cancel/use [RESET] key combo (above) to exit and the phone will automatically attempt to reboot.
As an alternative, pluck the battery out and chuck her back in, seems to be the charger initiating that little animation which causes a block on user input, or something similar, hope this helped

Screen black, reboots but still black screen

Tab s2 8.
Was using practically fully charged tablet one minute, went to use again and screen black.
Back and task switch buttons still light up when press power or home. Plus volume up/down makes the louder/quieter beeps.
Power and volume down gives me the quickest flash of the samsung and android boot logos and then screen black again. Makes the email received notifications you get when restarting the tablet.
Is basically on but just no screen. But screen still functional enough to briefly show boot logos.
Any thoughts?
Update. After about 30 mins of faffing, magically returns to life. Any thoughts on common issues that might have caused? Indicator of something about to go wrong for good?

Put down gently today and the right side of the screen displaying flickering dark/black stripes. Left side of screen perfectly fine. Touch still works over the whole display. Any ideas? Internal cable come loose? Or something more terminal? How easy to check/fix?
Xdaforumposter said:
Tab s2 8.
Was using practically fully charged tablet one minute, went to use again and screen black.
Back and task switch buttons still light up when press power or home. Plus volume up/down makes the louder/quieter beeps.
Power and volume down gives me the quickest flash of the samsung and android boot logos and then screen black again. Makes the email received notifications you get when restarting the tablet.
Is basically on but just no screen. But screen still functional enough to briefly show boot logos.
Any thoughts?
Update. After about 30 mins of faffing, magically returns to life. Any thoughts on common issues that might have caused? Indicator of something about to go wrong for good?
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