[Q] Black screen issue. - Epic 4G General

Every mornin after charging all night, my phone decides it wants to go black.. and ironically enough, not come back.
I have to pull the battery and reboot. It happens 4-5x in the morning, then doesn't happen the rest of the day. What would cause this?
- Nebula Lemon Slice ROM
- DK28
- SetCPU running @ 100-1000 conservative (only reason I mention this is it always seems to happen shortly, not immediately, after installing)
If you need any more info just ask.
Sent from my SPH-D700 using XDA App

Still no resolution for this issue. Returning my Epic today.

Try odining back to stck and then flashing dk8 again and the nebula rom see if that fixes it and try to format your sdcard to.
Sent from my SPH-D700 using XDA App

I have the same problem. It only occurs after I activate set cpu and it goes to sleep. If I turn set cpu off (after a battery pull) then it's fine. I just figured that set cpu doesn't support the epic that well yet.
Sent from my SPH-D700 using XDA App

Related

Random Freeze and reboot??

Hey just wondering if anyone else's phone has this issue. But, Sometimes my phone seems to freeze up and completely reboot. Possibly its trying to handle to many task??
Sent from my SGH-T959 using XDA App
Graph.Two said:
Hey just wondering if anyone else's phone has this issue. But, Sometimes my phone seems to freeze up and completely reboot. Possibly its trying to handle to many task??
Sent from my SGH-T959 using XDA App
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Click to collapse
Do you have setcpu or a OC kernal by any chance?
I am having this happen also... I have had to remove my battery three times today to reboot the phone.
I have set CPU installed, is that a bad idea?
I'm rooted with just the stock OS, no mods at all and my phone will randomly reboot every two or three days.
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qreffie said:
I'm rooted with just the stock OS, no mods at all and my phone will randomly reboot every two or three days.
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Click to collapse
Mine has the new rom the leaked one and does this so often like after every 2-3 songs. Did it with the stock rom too.
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No, I'm rooted with straight stock. No set CPU or anything of that nature. But like I said even then ill get complete freezes and then a reboot. Or occasionally ill attempt to open an app and the phone will reboot!!
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Alex530 said:
Mine has the new rom the leaked one and does this so often like after every 2-3 songs. Did it with the stock rom too.
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Click to collapse
did you wipe your SD cards when you flashed the new rom? I don't have this behavior but I did have FC's and such because of some files on the SD. I have NONE of this behavior. Something is wrong for you, nothing is wrong with JI2 and freezing/rebooting.
Graph.Two said:
No, I'm rooted with straight stock. No set CPU or anything of that nature. But like I said even then ill get complete freezes and then a reboot. Or occasionally ill attempt to open an app and the phone will reboot!!
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
I used to have this problem all the time too whenever I tried to use the gps, but since I've applied the leaked update that problem has gone away. But it seems like you're experiencing the issue at more random times. Have you noticed any particular pattern? For example, whenever you try to play music in the background and read a website at the same time.
Sent from my SGH-T959 using XDA App
Yup mine is bone stock not Rooted and it will lock up just siting there GPS, wireless and Bluetooth off in a very good signal area.
Same here on both roms. I thought the lag fix was causing the freeze. But now im stock jit2 and root.
Had the same with gps and maps with old firmware.
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Graph.Two said:
No, I'm rooted with straight stock. No set CPU or anything of that nature. But like I said even then ill get complete freezes and then a reboot. Or occasionally ill attempt to open an app and the phone will reboot!!
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
NO set cpu or anything
I haven't had this issue happen since I applied the flashable gps fix. Maybe it was an issue with an app that wanted to use GPS running in the background?
This has happened to me several times while booting gps and only recently started happening while playing pandora, but not as frequent as while using the gps...not rooted
Sent from my vibrant using XDA
Mine has only frozen up once and it was at the end of a call screen turned off. I hit power and went to go unlock and it turned off again.. Would not turn back on but I know the phone was still on since I had apmobile enabled and it was still transmitting wifi connection. Oh I was using eugene's FrankenTwiz (underclocked to 400mhz)when it happened but same thing happened to my girlfriend and she had hybrid r3. Other than phone runs fine.
Ive had some odd reboots where I dont get a shutdown or boot animation or sounds, just freezes, goes black, keys light up, searching for signal boot process. Yesterday in maps trying to troubleshoot my gps. Stock rom,rooted, Ryan's lagfix.
Vibrant vibrating nicely now,Kthx!
Have the phone replaced. I had a phone that would randomly freeze and/or reboot. Nothing I did would fix it.
I talked to a T-mobile worker who had the same issue with one of the early demo-phones Samsung loaned to him. They just replaced his without every saying what the problem was.
I've been having this happen a lot lately myself, it happened to me before on stock ROM due to SetCPU, but now on the leaked ROM. I did not clean the SD card (internal or external), so will give that a shot when I have some time to copy files on/off the SD cards (one reason to dislike the internal SD is that I have to mount it to copy the files, ergh).

Battery temp

Hello. First of all, this is my first post on these forums and if anything is wrong with my post please tell me.
OK. So I have a stock kernal, stock rom rooted Epic. After using it for a while the battery gets to around 100°f and it feels really hot. Nothing out of the ordianary is running (checked using spare parts) and about twice this month my phone has shut off due to overheating. If anyone has had similar issues or a fix, I would appreciate your comment.
Thanks.
Sent from my SPH-D700 using XDA App
1st of all your post is fine. If a forum thrashed every 1st post, that forum wouldn't last long.
Do you have another battery to try?
Yes. I will test my spare out for today and check the temps.
Sent from my SPH-D700 using XDA App
It might be the kernal....my phone never shut off cuz of overheating, but it did get hot a lot even if I want doing anything on it. That problem wentaway when I flashed different kernals. Try flashing the mixup kernal and see if it still persists? That was the first kernal I tried and it went away, but idk if it'd still have the same efect considering when I did it, there was a no-voodoo and voodoo kernal version
Sent from my SPH-D700 using XDA App
I actually noticed decreasing my screen brightness keeps the battery heat 10+ degrees lower. It may not be true but I seem to notice touchwiz uses way more battery and makes it hotter. Keep posting fixes to the community!
Sent from my SPH-D700 using XDA App
I also will not flash any kernal because I always get my updates the night of OTA and I don't want to deal with flashing.
Sent from my SPH-D700 using XDA App
Same as my Epic get hot time to time when I charge it. Sometimes it charge just fine and fast. Sometimes it charge take longer than other and get real hot on the back of epic. It just hit 103 temp today. I do have extra battery and it act same problem. Is there some kind of firmware doesn't response to charging well? I was thinking going back to sprint and have them look at it.
Any ideas and suggestion?
Thanks in advance.
My peeve... kernel, people, kernel!
Sent from my PC36100 using Tapatalk
Mmm when I plug in for charging, and if it get hot, I unplug and wait for 15 seconds, then plug again. After that, it doesn't get hot and charging much faster.
Sent from my SPH-D700 using XDA App
I have all the stock stuff running and doing certain things (usually downloading will do it) makes it VERY hot to the touch. My Hero did this, but I had it running a custom ROM from almost day 1, so if you are worried that it is a custom ROM/Kernel doing this, mine definitely feels verrrry hot, although I haven't gotten the battery temp tester or anything, figure it shouldn't overheat since I rooted it but haven't changed anything else.

Shift over heating?

Is anyone else's shift over heating?...if not what can I do to prevent it from heating up
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Is the phone overclocked? if so turn the CPU scaling down
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For some reason it was overheating bad, all I did was reboot the phone and it stopped over heating.....I do have the x99kernal and have it set to on demand 1209 max 245 min, that's not too bad is it?
Sent from my PG06100 using XDA App
No I run mine at 1.5 mostly they just get hot from time to time
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Run my Shift all day at 1.6gHz, no issues. Once in a while with heavy use it will get warm. But not hot. My TP2 used to get really hot. After looking into it, turned out it was a battery issue.
Shifted from neverland using XDA Premium App
What are we talking about for normal battery temperature vs one that I should worry about? I have serious battery issues and I am on my second phone because the 1st one wouldn't last more than 2 hours. I barely have any programs running and it won't last more than 4 hours. Thanks!
BTK-appl3killa said:
For some reason it was overheating bad, all I did was reboot the phone and it stopped over heating.....I do have the x99kernal and have it set to on demand 1209 max 245 min, that's not too bad is it?
Sent from my PG06100 using XDA App
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Click to collapse
I had that happen to me 2 weeks ago at a baseball game... The phone was in my pocket as it always is, and the thing started getting extremely hot to the touch within minutes... Also using x99 with kickass governor, 245 min/806 max.
And I did the same thing to fix the problem as you..
Now if I can only figure out why I have no data at all today on the phone..
My girlfriend's Shift began overheating at a wedding not long ago. Was able to track it down to K9 Mail, which was stuck constantly polling the 3G connection. Even a reboot would only stop it for a while. Uninstalled and reinstalled K9 and all was well after that.
Same thing happened to me once when I tried the Pulse app I think. I was looking for a different RSS reader. It got stuck updating or something. I was sitting at work and my phone felt very hot. I noticed data was being transfered and checked the network usage using the *#*#4636#*#* and sure enough Pulse had downloaded over 200mb worth of data that morning on 3G. Once I removed the app it has been fine. I am stock rooted.

CPU at maximum frequency at all times

I am running faux's newest kernel on my att atrix, Allen build 4. I've noticed that upon cold reboot, the frequency scales correctly. after a while however, the phone stays at the max frequency. I've tried stopping running archives that I thought might be causing this, hit it doesn't help. Is it the kernel?
Sent from my MB860 using xda premium
You have a misbehaving process
turl1 said:
You have a misbehaving process
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Click to collapse
That's what I thought originally, but after killing all the apps that were running, it still stayed at the frequency.
I have a hypothesis, and i'm going to test it in a second. I think that when I plug my phone into my laptop dock, it for some reason locks the frequency at max.
EDIT: It's the webtop mode. If I plug the phone into my laptop dock, and open the laptop, the frequency is locked at maximum frequency. I'm going to flash the stock kernel again, and see what happens next.
EDIT2: So it's definitely faux's newest kernel. It might just be me, but it definitely is locking to max frequency. Stock does not have this problem.
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paravorheim said:
That's what I thought originally, but after killing all the apps that were running, it still stayed at the frequency.
I have a hypothesis, and i'm going to test it in a second. I think that when I plug my phone into my laptop dock, it for some reason locks the frequency at max.
EDIT: It's the webtop mode. If I plug the phone into my laptop dock, and open the laptop, the frequency is locked at maximum frequency. I'm going to flash the stock kernel again, and see what happens next.
EDIT2: So it's definitely faux's newest kernel. It might just be me, but it definitely is locking to max frequency. Stock does not have this problem.
Sent from my MB860 using xda premium
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Click to collapse
I have seen the same behaviour. Just got my HD Dock yesterday. When I pulled it out it was warm/hot. I thought it was just the clock/screen using power or whatever. Then I opened SetCPU while in the dock and it showed a constant 1000Mhz. When I unplug it still shows that frequency. Too bad
use the auto detect button again#
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ltdanno360 said:
use the auto detect button again#
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Click to collapse
Thanks, I'll try it out in the morning, and report back.
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I think this is a known issue with faux's new kernel. When you place the phone into a laptop dock it clocks the CPU at max until a reset. I guess the same thing happens with any dock
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i have recently made a decision to delete the set cpu and install cpu masters from the market ,i think so for after 24 hours i think it does make a difference um
i notice lower temps even after an hour of useing the webtop or just an average temp overall i am useing the faux 2.0 kernal 1.3 oc but its set at 1.2
my profiles are screen off 456 max-216-min
the rest are 1200max 216-min
Sent from my MB860 using xda premium
I don't have a dock but I just installed _unknown's hdmi/webtop mod while running faux's enhanced stock 0.2.0. Noticed my phone was really hot after trying it out, even with the screen off and noticed a constant 1000 max. in setCPU.
Cleared my cache & dalvik, reinstalled kernel, jugg's battery fix, cleared my battery stats, rebooted into recovery (figured it wouldn't hurt since it defaulted to that option), then fixed permissions and restarted. Everything seems to be back to normal.
Will see what happens when I run the webtop again and report back later. Currently CPU is showing 36C and battery is at 32C. Are these acceptable temps?

Phone in Purgatory

Hello,
I wanted to see if anyone else is experiencing the same problem.
When my phone goes in to sleep mode, after about three minutes, it goes into limbo mode.
It is neither on or off. Only solution is to pull the battery and power it back on.
The only time it does not go in purgatory is when it is plugged in.
So I tried increasing both the CPU and the voltage. same problem.
I tried different roms and even went back to stock. Same problem.
Here is a screenshot.
Anyone else have the same problem? Any solutions?
I am out of ideas.
Thank you.
For one something is keeping your phone awake all the time. Do a Factory Data reset and try it for 2 hours without restoring anything. Then if it sleeps fine and doesn't have the Sleep of Death then add 1 or 2 apps at a time until you find the offending app.
Sent from my SPH-D700 using XDA App
Well something is keeping your phone from going into deep sleep and then locking the device up to where you need to pull the battery.
What is your setup? (ROM, kernel, CPU clock ranges, voltage ranges)
First suggestion would be to flash a different kernel and give that a go.
Second suggestion would be to start over from scratch and not restore data.
You do know purgatory doesn't exist right?
Anyways those are some creepy stats and as suggested previously going back to stock platform would be your best bet to see if your phone has a hardware issue
Sent From My Thugnificent SPH-D700 because its more than Magnificent
Looks like you tried correcting the wrong side of your CPU clock, the problem is likely your low end voltages (100, 200 MHz). It's a sleep of death; once the phone gets settled in to deep sleep, your low end voltages are acting screwy, and the phone can't kick itself into those to wake up. Pretty common when one goes about figuring out what voltages work for their phone.
And the battery graph? Those jumps are pretty normal for battery pulls on this phone. It tends to read the wrong battery voltage when it's soft reset (battery pull) as opposed to shutting down and turning on.
Sent from my SPH-D710 using xda premium
Nvmtenchar
KA82 said:
Hello,
I wanted to see if anyone else is experiencing the same problem.
When my phone goes in to sleep mode, after about three minutes, it goes into limbo mode.
Anyone else have the same problem? Any solutions?
I am out of ideas.
Thank you.
Click to expand...
Click to collapse
Your under-volting correct? if so your under-volting too much.
I had this problem when i was UV'ing a lot but only on GB. i could UV extremely on Froyo my 100MHz was @450mV and running at that state.
What are you looking at?
ac16313 said:
He has helped more than both of us though, he previously had this phone. He's knows wha forum he's in, he likes to help here every once in a while. Also what he said is correct.
Just some helpfull information, don't bash him he's well known
Sent from my SPH-D700 using xda premium
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Click to collapse
That's why I said not to be mean nor saying he can't post here nevermind just let me remove the post
Sent From My Thugnificent SPH-D700 because its more than Magnificent
Biggoron said:
That's why I said not to be mean nor saying he can't post here nevermind just let me remove the post
Sent From My Thugnificent SPH-D700 because its more than Magnificent
Click to expand...
Click to collapse
Okay man ill remove mine lol
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ac16313 said:
Okay man ill remove mine lol
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Click to collapse
Thnx
Sent From My Thugnificent SPH-D700 because its more than Magnificent
Biggoron said:
That's why I said not to be mean nor saying he can't post here nevermind just let me remove the post
Sent From My Thugnificent SPH-D700 because its more than Magnificent
Click to expand...
Click to collapse
Haha, judging by the edited comments i assume it was brought up i posted from my epic touch? No worries lol.
Actually, i kept my epic and still carry it around with me nearly every day, believe it or not, especially since cm9 was posted. Ive been messing with ics apks, mainly trying to incorporate some asus live wallpapers and modding the trebuchet launcher. I love this little phone, the hummingbird was head of it's class, not mention it was my first android phone. Also, the wolfson DAC is just plain better then our Yamaha, so i also use it as my main car music player.
Sent from my SPH-D710 using xda premium
Thanks for all the suggestions eveyrone...
I was not undervolting.
I have tried to increase the voltage and removed the lower cpu mhz.. but I still got the "sleep of death."
I have tried different roms, kernals, etc... same problem
I am stock currently, tried factory resets, didn't install any programs... same problem.
As for the graph.. I kept the screen on so my phone wouldn't go into "purgatory"
Right now, I can only use my phone if it is charging, and if I keep the screen on.
squshy 7 said:
Looks like you tried correcting the wrong side of your CPU clock, the problem is likely your low end voltages (100, 200 MHz). It's a sleep of death; once the phone gets settled in to deep sleep, your low end voltages are acting screwy, and the phone can't kick itself into those to wake up. Pretty common when one goes about figuring out what voltages work for their phone.
And the battery graph? Those jumps are pretty normal for battery pulls on this phone. It tends to read the wrong battery voltage when it's soft reset (battery pull) as opposed to shutting down and turning on.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
KA82 said:
Thanks for all the suggestions eveyrone...
I was not undervolting.
I have tried to increase the voltage and removed the lower cpu mhz.. but I still got the "sleep of death."
I have tried different roms, kernals, etc... same problem
I am stock currently, tried factory resets, didn't install any programs... same problem.
As for the graph.. I kept the screen on so my phone wouldn't go into "purgatory"
Right now, I can only use my phone if it is charging, and if I keep the screen on.
Click to expand...
Click to collapse
Maybe your processor is fried? H'm that's strange.
Sent from my SPH-D700 using xda premium
He said 'Kernals' *gulp*
Wow, well if you're completely stock I'd say you've got yourself a bad phone. The only other thing i would try is taking your SD card out.
If you still have the same symptoms, the replacement through sprint will be free if you have TEP or $35 if not.
Sent from my SPH-D710 using xda premium
thanks.
could it be a bad battery? battery failing to give enough power to the phone?
KA82 said:
thanks.
could it be a bad battery? battery failing to give enough power to the phone?
Click to expand...
Click to collapse
Nope since your phone works when the screen is on
Sent from my SPH-D700 using xda premium
KA82 said:
thanks.
could it be a bad battery? battery failing to give enough power to the phone?
Click to expand...
Click to collapse
Actually that did happen to me with a cheap battery Best Buy sent me. It would turn on and run on wifi but as soon as I turned on 3G and did anything needing it it would go black and had to pull the battery to get it to reboot.
Sent from my SPH-D700 using XDA App
Possibly some type of water damage in the phone? Possibly didn't drop it in water, but water does find its ways in. I got water damage in my phone from sweating while using it for music and working out. Also from listening to music while showering and the steam.

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