[Q] Screen won't stay off. - Epic 4G Q&A, Help & Troubleshooting

Has anybody had an issue where when they press the power button, the screen will turn off for a moment, then come right back on? And if so, does anyone know a solution? I've looked around on the forums a bit, and its a problem on other phones where the screen has to be at at least 40% brightness, but it happens to me no matter how high or low the brightness setting is. Running ACS 1.0.2, but it has happened on other ROMS before, so i doubt it is a ROM issue.

I have had this happen too, but only in CM 7. And just figured it was because that rom is in the alpha stage right now. I have not had it happen in any other rom so far. When it was happening it was only some of the time. Was never able to figure out what the differences were when it would and wouldn't happen. Seemed like it was just random.
Sent from my SPH-D700 using XDA App

I've since found this happens very often when the brightness is up all the way, and the lower the brightness, the less it happens. Could this be a software problem?

I had this happen a few months ago. I wasn't sure what was causing it. At first it was turning on the lock sound, and the sound would play after the screen shuts off. Then the sound would kick the screen back on. I believe I changed ROM later and it never happened again. If you are on a custom ROM, maybe try reflashing?

I have had the exact same thing happen on 2 different Roms. Just wipe and flash and it fixes the problem.

BloodThirstyEmu said:
I have had the exact same thing happen on 2 different Roms. Just wipe and flash and it fixes the problem.
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Unfortunately that only lessened it, not fixed it. It still happens enough that I leave the brightness down. Tried multiple times. :/

This still happens on a fresh stock install of EC05. Could this be a hardware issue that I should get checked out?

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[Q] Phone shuts down--Need help

I have been having an issue with my phone shutting down on me. When I put it in sleep mode, and after a while try to turn it back on, the phone is completely shut off. The only way to turn it back on is to pull the battery. When it is plugged in, it never does this-even in sleep mode. This is also not ROM specific, it has happened on several different ROMS. Does anyone know how to fix this issue? Thank you for your help!!!!!!!
If you're using setcpu, raise the screen off clock speed.
Texted while driving
Thanks for the suggestion. I am using set CPU. I looked and can't find that setting. How do I get there?
I am getting the same thing on different ROMS. Specifically the latest Midnight and Syndicate ROMS, which are the only two ROMS I have ever ran. It just started this out of no where as well. I was running Midnight for over a week with no issues, and then yesterday it started shutting off multiple times. So, I wiped everything three times, and flashed Syndicate last night, and then this morning it started doing it again. I just Odin'd back to stock, and am going to see how it runs before rooting and flashing again. I would love to hear what could be causing this issue.
I've been having the same issue. I've had it with the latest Syndicate ROMs, Bonsai ROMs, and Midnight ROMs. It's been very frustrating as I've only been able to reproduce the issue after using the phone for a day our two. It only happens when on battery power and when the screen has been off for several minutes. I've always ensured Set CPU is set to minimum 200 mhz and I've also had the issue without set cpu installed, so I don't think that's it.
I've been doing lots of testing to determine what might be causing it and so far I've eliminated the kernel and ext4 as the culprit. I think it must be some relatively new tweak that all the custom ROMs are implementing. My latest theory is perhaps the NCIQ tweaks.
Thanks so much for the input. Hopefully someone can figure this thing out
Sent from my SPH-D700 using XDA Premium App
mpscmedic said:
I have been having an issue with my phone shutting down on me. When I put it in sleep mode, and after a while try to turn it back on, the phone is completely shut off. The only way to turn it back on is to pull the battery. When it is plugged in, it never does this-even in sleep mode. This is also not ROM specific, it has happened on several different ROMS. Does anyone know how to fix this issue? Thank you for your help!!!!!!!
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I experienced the same issue, and reported it in the Bonsai 4.0.1 thread, as that's the ROM I'm using. I would defnitely like to know about the solution, as it is quite frustrating when this occurs and it does not allow using the phone without the battery power cycle.
Sent from my SPH-D700 using XDA App
Data corruption
I, have found it is best to fully wipe everything.
I installed srf and got freezes and random reboots.
Then i installed cm7, and re-flashed srf from that not a problem since.
This issue has been discussed before,and i suggested this remedy to fix the ailments.
It is tedious but it works just fine.
Not sure what the problem is, but you probably came from an EC05 stock rooted ROM.
I think that is the underlying cause of these problems.
fully wipe your phone 3 times wipe everything flash cm7 ,you dont need to flash the gapps then flash srf or bonsai and watch them run.

[Q] Forced Reboot when Screen Times out - All ICS roms

Hi All,
I've been able to successfully install many of the ICS roms that are out there. However my problem isn't with the home button, search, data or echos. Whenever my screen times the phone just reboots itself and continues to do so. If I lock the screen myself the same situation happens. I've properly wiped before installing data>cache>delvik>superwipe>kernel cleanse>install>fix permissions>reboot>10min wait and reboot. If tried going back in and fixing permissions too, but nothing seems to fix this issue. The only solution around is keeping the screen on full time or if I leave it plugged in, then the screen can lock without rebooting.
Any suggestions? Currently running IML74K_Ics_Perfection
Did you try under clocking or undervolting
?
Sent from my SGH-T989 using Tapatalk
I have not. Though i thought it might get too low during idle causing it to power down
If it does get too low then bump it up a bit and see what happens. If not then I'm stumped. In all honesty I would simply go back to gb. ICS has just to many bugs for me to bare. Really you're not missing out on much besides multitasking and chrome perhaps.
Sent from my SGH-T989 using Tapatalk

Random Reboots - FF18

I'm running the stock ICS FF18, rooted. All seemed reasonably well for the first couple weeks, now the damn thing wants to randomly reboot.
I tried wiping, reinstalling the stock ICS, but the problem returned. Reboots happen maybe upwards of a dozen times a day. I've tried isolating the problem but unable to find a common variable...sometimes it happens when I'm in the middle of something, like web surfing or texting. Sometimes it happens when I press the power button, sometimes it happens when it's just sitting there not being touched, sometimes it happens when plugged it, sometimes when not plugged in.
I can't think I have a bad install twice and I'm not finding much on the forums here about others with a similar problem with the stock ICS. So I'm thinking either an app is being a b1tch and causing problems or perhaps something related to the battery? If there was one common theme, it does always happen later in the day or at night after the battery is down below 50%.
Does anyone have thoughts, ideas, suggestions on the likelihood of a bad battery or perhaps someone experienced something similar?
waltcoleman said:
I'm running the stock ICS FF18, rooted. All seemed reasonably well for the first couple weeks, now the damn thing wants to randomly reboot.
I tried wiping, reinstalling the stock ICS, but the problem returned. Reboots happen maybe upwards of a dozen times a day. I've tried isolating the problem but unable to find a common variable...sometimes it happens when I'm in the middle of something, like web surfing or texting. Sometimes it happens when I press the power button, sometimes it happens when it's just sitting there not being touched, sometimes it happens when plugged it, sometimes when not plugged in.
I can't think I have a bad install twice and I'm not finding much on the forums here about others with a similar problem with the stock ICS. So I'm thinking either an app is being a b1tch and causing problems or perhaps something related to the battery? If there was one common theme, it does always happen later in the day or at night after the battery is down below 50%.
Does anyone have thoughts, ideas, suggestions on the likelihood of a bad battery or perhaps someone experienced something similar?
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Any special wi-fi config? (That's the culprit in my case.)
garwynn said:
Any special wi-fi config? (That's the culprit in my case.)
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Click to collapse
No...never installed the hotspot hack, did have foxfi installed, but did not reinstall after reloading ff18.
im also having the same problem as well, and the problem has became worse and worse,what started off as once or twice a day,is now at least occurring every 10 min.I think im about to downgrade right now to stock gingerbread and see what happens
My phone has always had some amount of random "poweroffs" (not really reboots, I pick up the phone expecting it to be on and it boots from scratch instead). However its much more frequent on ICS (FF18/FH13).
rocket321 said:
My phone has always had some amount of random "poweroffs" (not really reboots, I pick up the phone expecting it to be on and it boots from scratch instead). However its much more frequent on ICS (FF18/FH13).
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U can always unroot back to el29(gingerbread)i was having the same problems and now i can enjoy my phone
Sent from my SPH-D710 using xda premium
I had that issue on AOKP M6, then realized my power button was actually broken. It would reboot the phone because it was actually stuck down internally. Had to get a new phone.
Sent from my SPH-D710 using xda app-developers app
R0CKSTAR3N3RGY said:
I had that issue on AOKP M6, then realized my power button was actually broken. It would reboot the phone because it was actually stuck down internally. Had to get a new phone.
Sent from my SPH-D710 using xda app-developers app
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Click to collapse
The power button seems to be a common cause of random reboots and that's what I'm leaning towards now as no other software fix has resolved the problem. Supposedly Sprint ordered me a replacement to swap out phones. I'd definitely recommend trying a different Kernel if on FF18 and if that doesn't fix it, try rolling back to EL29.

wake up issue?

Occasionally I notice in the mornings after my phone has been undisturbed all night that when I try to wake it, it won't. The home and back lights come on and sometimes the screen flashes, but it sometimes takes a minute for my screen to come on. Initially I thought it was a Rom issue, so I went back to stock, same issue, and now I'm on ecliptic and its also an issue. So I think it's safe to say it's the phone itself. I've tried removing the lockscreen to but makes no difference. It's not a constant issue, but happens more often then I'd like and annoying when I want to use my phone but have to wait up to a minute for it to "wake up". It will go right back to this state also unless I use it for a couple minutes. Any ideas?
Sure its not an apo?you mess with the speeds or governors?
Sent from my One using Tapatalk
Dark Jedi said:
Sure its not an apo?you mess with the speeds or governors?
Sent from my One using Tapatalk
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No I haven't messed with any of that with this phone yet. It did this even on just rooted stock.
Me too
I'm having the same issue, can't find a cause or solution. Seems to happen mostly when my alarm is going off.
HTC One VZW / Ecliptic 5.5 / JB

My device freezes in a black screen

Hey all!
This is happening to me for 2 months now, I was running official 12.1CM and now official 13CM
I tried to also use some stock based rom but im pretty sure it happened there too.
Whats happening to me is that randomly throughout the day my phone's screen turns black and I cant reboot it by any home button combination, only by getting out the battery.
When this happens the phone just totally freezes and I cant get it to respond or make a sound.
I don't think that the phone dies because sometimes when its freezes I can still see the notification led blinking.
Does anyone know why this might happen? or where can i copy some logs that might help you guys figure it out?
Thanks in advance!
sounds like you have the sleep of death issue? Personally I haven't been on CM roms much on my G3 so I haven't really encountered this issue but on my previous phone I've encountered this a few times on CM.
EDIT: Though it shouldn't happen on stock are you sure it happens on stock as well?
I have this issue as well using the Exodus rom. I never had it while using a stock rom, so I think this is a cyanogenmod issue (Exodus is a CM based rom in 5.1).
I have the exact same issue with my vs985. Seems to happen the most when viewing any sort of video, but I have had it happen at other times as well. Pretty dang annoying, probably 3-4 times a day. Using CM 13.0-20151217-nightly-vs985 but it started when I first flashed CM. Never had the issue on stock rooted rom.

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