Develop Bugs

[Q] CPU overheat and crash, help?

My wife's Epic 4G was working fine yesterday but today it crashed and overheated pretty severely. When it was still plugged in and crashing it showed the battery charging and then it turned yellow and show a yellow warning triangle with a thermometer beside it, is the phone going to stop working on us?
I would appreciate a quick response so I can take it to Sprint and see what they can do about it.
I just factory reset it to insure that it wasn't a rogue application or what not and the phone is still running slow, not as bad as when it was crashing, but it still works so I don't know what's going on with it.
Also the phone is stock and has always been stock without root or any other type of hacking, etc.
It just stooped working perfectly one minute.
She showed me that the screen was blinking rapidly in an up and down bar fashion on the home screen and during applications.

First of all how old is the phone. My phone runs games hot all the time and never crashes (well sometimes, but usually when im not even doing anything with it).
I would think that the video is going out on it and it is rebooting. Depending on the age I think your phone is dead dude.
Cheers
Burrito

Not a year yet, it'll be a year old in June or July. I'm hoping it was just a virus or something because its working now. Should I exchange it anyway?
Nabbu eats your face.

Try flashing it back to stock or wipe the data if it isn't already rooted. I've never heard of anything of this sort... need some screenshots or something.
Sent from my SPH-D700 using xda premium

It's already stock.
Big Goron said:
Try flashing it back to stock or wipe the data if it isn't already rooted. I've never heard of anything of this sort... need some screenshots or something.
Sent from my SPH-D700 using xda premium
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Click to collapse
I already factory reset it and it's running right now as if it were just fine but what I'm wondering is if it's going to happen again and not work afterwards.
I'm thinking about taking it in to Sprint and exchanging it but I'm afraid there might be fees for exchanging or what not. The phone has been dropped multiple times but it never had any issues before.
The drop distance has been less then 2 feet every time.
No water damage to the phone itself but the Sprint tech said the battery's "water damage" indicator was activated and showing water damage.
The phone HAS been in the bathroom during multiple showers which might be the cause for the battery's damage indicator to go off but the phone, like I said, has never had any issues.
She downloads pretty much everything from the Market so I was suspecting viruses or malware and now it's "clean" it's running fine.
Any suggestions for where I should go from here?

The phone should be fine. This has happened to me a few times.... if your phone gets extremely hot it will refuse to charge as a safety feature and show that yellow triangle thing... open the back of the phone take the battery out and let it cool down.
Sent from a CM9 powered Epic.

That's the best advice i've gotten on here! Thanks a ton! ^^b
Nabbu eats your face.

Big Goron said:
Try flashing it back to stock or wipe the data if it isn't already rooted. I've never heard of anything of this sort... need some screenshots or something.
Sent from my SPH-D700 using xda premium
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Click to collapse
Happened to me my battery got near 118*F so I took it out and let it cool on some aluminum and put it back in was fine
BTW you can't take a screenie because phone shuts it self off
Sent from my SPH-D700 using xda premium

I'm guessing that the overheating problem had to do with a buggy app that was running on the phone and took lots of data or cpu time. This has also been know to happen when running wifi hotspot apps.
Regardless, like everyone else said the phone went into thermal protection mode. The battery got hot and it wouldn't charge the battery until it cooled down.

Could be the screen being on and maybe running a governor such as "performance"? Also, I've left my phone under a pillow charging, woke up it was 110F and I haven't had this problem it mustve been really hot
Sent from my SPH-D700 using xda premium

Fire n mage said:
Could be the screen being on and maybe running a governor such as "performance"? Also, I've left my phone under a pillow charging, woke up it was 110F and I haven't had this problem it mustve been really hot
Sent from my SPH-D700 using xda premium
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phone on the charger while doing things stir up more heat than normal as well.
plus i just had mine on the charger and for five minutes i was listening to tune in radio streaming over wifi and playing lets golf 3 and got off and phone was at 109.4*F Battery heat

poit said:
I'm guessing that the overheating problem had to do with a buggy app that was running on the phone and took lots of data or cpu time.
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Click to collapse
THIS! ^^^ Without looking at your phone, I'm guessing this was the culprit. She had a buggy/defunct app that was probably frozen in the background while still sucking CPU/RAM. I've had a few of those instances and it DEFINITELY increases the temperature of the phone.
Only other thing I can think of is if she runs her phone at the brightest setting and has a long timeout on the screen timeout. Either way, I think it's nothing a little spring cleaning of the apps and tweaking couldn't take care of. Good luck buddy

Button Problems and First Root Ever

Hi, Everyone! This is my first post on here but I have spent the better part of the last week reading all the different threads. Yesterday my Samsung Epic 4G decided to go a little insane on me. It was working eprfectly fine (especially for a 2 year old phone) when all of a sudden my power button seemed to start cyling and the power off screen kept popping up and the volume keys did the same. I turned the phone off and even tried taking the battery out and giving it a rest but the problem persisted.
Another issue was that some of the numbers no longer worked correctly. The even numbers both on the touch screen and keypad would dial
"2468" instead of the corresponding number; very weird! The phone had never been rooted or modded at all. Well I was able to get into the phone after figuring out a way to input my passcode with the faulty numbers and I performed a hard reset. The phone is back to completely stock but the power button and camera button do nothing. The volume up button works well but the volume down (besides lowring the volume) button causes google search to pop up and then a bunch of letters and numbers to be typed in both the google search bar and in the message of box of the last person I texted. I can still use the phone by opening the key pad to wake the screen up and I can text and call fine as long as I don't touch the Volume Down button. Also, battery life is ridicolously low. I am up for upgrade but don;t really feel like upgrading to the S3 just yet. Sorry for the long post. I know it is against forum policy but I wanted to get the whole story out there. So here is what I am looking to do:
I want to root the phone and install one of the roms to maybe eek out a couple more weeks out of it. Again it works ok now, just the sliding out of the keypad and lack of power button sucks. The phone boots up if I take the battery out and put it back in wihtout touching the power button.
I have read up on Odin and that looks somewhat straightforward. Just trying to see what you think is my best course of action. Again, I do not have a power button working or camera button and a faulty Volume Down Button. Maybe I can do the whole slip in the battery while holding "1" to get it into download mode? This will be my first time rooting a phone so any help is great and appreciated. Thanks and again, sorry for the really long post!

I forgot to mention that the phone is currently running on Gingerbread 2.3.6. This may or may not make it more difficult to root.

Did the phone get wet at all? Use it in the rain?
Sent from my PantechP4100 using xda premium

kennyglass123 said:
Did the phone get wet at all? Use it in the rain?
Sent from my PantechP4100 using xda premium
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Click to collapse
was thinking this as well

It actually got wet about 1.5 years. I threw it in rice for about a week and never had any issues. The phone has never frozen or had issues the past year and a half. Yesterday it was in the kitchen charging (with a samsung charger but not one for this phone specifically) and it started doing the whole power button/power off screen flashing. I was able to get it in download mode earlier today but i don't know about recovery mode since the power button is dead. Maybe I should root it to see if its a hardware issue?
Edit: I forgot to mention that the phone gets really really hot while charging as well in the area above the battery. Hopefully nothing short-circuited.

It could take a while before the corrosin gets bad enough to affect your phone. I dropped a phone in the toilet once, and it was over 2 years before it crapped out. Took it apart and it looked like an old Chevy wheel well inside.
Sent from my SPH-D700 using Tapatalk 2

frostedunit said:
It could take a while before the corrosin gets bad enough to affect your phone. I dropped a phone in the toilet once, and it was over 2 years before it crapped out. Took it apart and it looked like an old Chevy wheel well inside.
Sent from my SPH-D700 using Tapatalk 2
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Click to collapse
That is a good point. I never thought of that. It was also in the kitchen which was humid and hot as ever yesterday. Do you think any kind of root or rom could help me squeeze a little bit of life out of my old phone.

Raymos24 said:
That is a good point. I never thought of that. It was also in the kitchen which was humid and hot as ever yesterday. Do you think any kind of root or rom could help me squeeze a little bit of life out of my old phone.
Click to expand...
Click to collapse
Doubtful. If you're hardware's screwed, so are you.
Sent from my SPH-D700 using Tapatalk 2

So I left the phone alone for a couple days with the battery out. I go to turn it on today and it worked perfectly. Then after about 5 minutes the power button stopped working again, but everything else is ok. No random letters and numbers and the volume buttons work as well. Now, I'm kind of lost as to what to do. I do have a parts phone, same one as this. Maybe I need to replace the power button? It clicks and everything and even worked for a couple minutes but now is non-functional again.

[Q] Rebooting and Power Issue

My phone seems to have some kind of issue. Starting this morning, my phone rebooted twice without me doing much of anything to it - I clicked the power button to check the time, and doing so caused the phone to reboot. I waited for it to reboot, and when I clicked the power button again, it rebooted once more.
Now, whenever I click the power button, the phone won't wake. I can wake the phone and use it normally by pressing the volume keys, but I can't put the phone back to sleep. My phone is still randomly turning off and rebooting as well. Right now, it's off and I can't turn it back on because the power button isn't responding. I have to plug it into the computer/wall to actually turn it on. Does anyone know what's going on?
At first I thought it was a faulty power button, but I've no idea what to think now. I'm running Calks E4GT 3.
For the time being, I'm using Smart Screen Off, which is working great. I can live with this, but my phone is still likely going to reset, and I have no idea why.

IceCatraz said:
My phone seems to have some kind of issue. Starting this morning, my phone rebooted twice without me doing much of anything to it - I clicked the power button to check the time, and doing so caused the phone to reboot. I waited for it to reboot, and when I clicked the power button again, it rebooted once more.
Now, whenever I click the power button, the phone won't wake. I can wake the phone and use it normally by pressing the volume keys, but I can't put the phone back to sleep. My phone is still randomly turning off and rebooting as well. Right now, it's off and I can't turn it back on because the power button isn't responding. I have to plug it into the computer/wall to actually turn it on. Does anyone know what's going on?
At first I thought it was a faulty power button, but I've no idea what to think now. I'm running Calks E4GT 3.
For the time being, I'm using Smart Screen Off, which is working great. I can live with this, but my phone is still likely going to reset, and I have no idea why.
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Click to collapse
I'm no expert but when that happened to my phone I had it replaced. Turned out to be a faulty power button...
Sent from my SPH-D710 using xda premium

I was thinking about it, but I'm certain it's out of warranty. My contract expires this November, so I'm really hoping that's not the case.

It's your phone a year old or older?
Do you still have the original battery?
Pp.
sent from a jellybean filled epic touch.

It is. I've had my phone since November 2011. I do still have the original battery, though the battery is pretty much shot. It had overheated (it was charging underneath some comforters), but a few days later the battery came back on, and I've been using it ever since. I'll get a new battery, but do you think that's what the problem is?

IceCatraz said:
It is. I've had my phone since November 2011. I do still have the original battery, though the battery is pretty much shot. It had overheated (it was charging underneath some comforters), but a few days later the battery came back on, and I've been using it ever since. I'll get a new battery, but do you think that's what the problem is?
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Click to collapse
You can definitely try changing the battery, but also if you have insurance on your phone you should be able to call sprint and have them exchange it. I did it not too long ago and I had my phone since day one. I'm positive that my warranty was expired but I still had insurance on it. They sent me another one 2 days later.
Sent from my SPH-D710 using xda premium

I would definitely say yes, you need a new battery!
Amazon is your best bet. Anker makes a good battery.
Pp.:beer:
sent from a jellybean filled epic touch.

How much did that cost you? I might have insurance on it, but I have no idea. I remember replacing one of my previous phones and it costing $50.

IceCatraz said:
How much did that cost you? I might have insurance on it, but I have no idea. I remember replacing one of my previous phones and it costing $50.
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Click to collapse
To be honest they didn't even charge me..lol. All I did was call sprint, told them that my power button wasn't working,they asked if it had any water damage. I told them it didn't and she asked if I had insurance,told her I did and she simply said no problem, asked for my address and said you'll have another device in 2 to 3 days. Received it in 2 days returned the other one no questions no fee..
Sent from my SPH-D710 using xda premium

From Amazon about $12.00 plus shipping. Samsung Epic 4G Touch 1800 mAh Standard Battery ..
Pp.
Transmitted from another galaxy with a Jellybean infused P-5113 full of Unicorn porn.

My phone started that 3 days ago. Power button failed. I have 8 batteries so it wasnt that. Id put battery in and it would boot up without touching button. Then power off. I had insurance send new one. They gave me new not refurb and it works day and night difference better than old one
Sent from my SPH-D710 using Tapatalk 2

I'm most definitely sure it's your power button going broke.
Battery issues usually make your phone flicker like auto brightness is adjusting before shutting off. And so on.
A battery issue wouldn't make your phone reboot by itself when touching the power button.
My friend use to have power button issues like what the OP stated. I told her, her case is causing it(she had one of those cases that block the power button and volume button with rubber) we took the case off left the phone alone for a day and the power button worked correctly. I since have cut out the rubber to her case.
Sorry about the long post
I've known 6 ppl with the E4gT in the past 3 months that have Power button issues. I usually can spot them now.
Sent from my SPH-D710 using xda app-developers app

Seems a lot of people are having power and battery related issues. I've had my e4gt for around a year and my battery is going out. Had 2 ordered today so hopefully no more problems. Lay your battery down flat on the table if it's bulged or misshapen then it's bad. They're only like 10 bucks on ebay.
Sent from my SPH-D710 using xda premium

Sounds like what Im experiencing is the power button issue as welll; phone wakes up on and off by itself, power button doesnt always wake up or put the phone to sleep (or brings up power menu), and random reboots. So assuming this is the case for me too, and with insurance, will I have any issues trying to get it fixed if my phone is rooted? Or just make sure I have unrooted my phone and made stock before I take it to Sprint and Ill have nothing to worry about it then?

CylonWolf said:
Sounds like what Im experiencing is the power button issue as welll; phone wakes up on and off by itself, power button doesnt always wake up or put the phone to sleep (or brings up power menu), and random reboots. So assuming this is the case for me too, and with insurance, will I have any issues trying to get it fixed if my phone is rooted? Or just make sure I have unrooted my phone and made stock before I take it to Sprint and Ill have nothing to worry about it then?
Click to expand...
Click to collapse
It is always best to go back to stock. They will likely charge you $50 for it though so it is actually cheaper to go to http://mobiletechvideos.mybigcommerce.com/samsung-epic-4g-touch-power-button-repair/. No need to go back to stock with them and they do great work.
Sent from my SPH-D710 using xda app-developers app

graydiggy said:
It is always best to go back to stock. They will likely charge you $50 for it though so it is actually cheaper to go to . No need to go back to stock with them and they do great work.
Sent from my SPH-D710 using xda app-developers app
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Click to collapse
I believe my power button is going out too. It does the rebooting cycle like others have mentioned and simply rubbing my finger across the button (without pushing it) will cause the phone to turn on and off.
I currently don't have insurance on my phone. Sprint sent out an email a couple of weeks ago about Insurance Open Enrollment. Anyone know if I can enroll now and turn around and take my phone in for repair (unrooted of course)?
Thanks

There was a thread on the power button issue on the Sprint.com forums, and a poster claimed he didnt pay anything for the repair and didnt have insurance (I guess because its apparently a known/common issue now). I figured with the open enrollment it might be worth $8 just to make sure Im covered, although apparently you have to wait 3 days after you signup (Jesus waited 3 days, so I guess I can too huh?). If its a known issue with the phone that is apparently at least somewhat common, I see no reason Id have to pay $50 to have it fixed.

****. This just started happening to me this morning. Phone was working just fine. I am just running stock rooted and now seems like everytime i try to turn off the screen the phone reboots. I have never dropped this phone. I dont have any insurance policy from sprint. Do you think there is anything they will do with this phone?

dbldown768 said:
****. This just started happening to me this morning. Phone was working just fine. I am just running stock rooted and now seems like everytime i try to turn off the screen the phone reboots. I have never dropped this phone. I dont have any insurance policy from sprint. Do you think there is anything they will do with this phone?
Click to expand...
Click to collapse
My reboots started happening earlier this week. I'm running the JB GB08 rooted leaked release. I called Sprint this morning and added the insurance coverage since open enrollment runs through the end of March. I plan on taking the phone into Sprint over the weekend after I reinstall the office ICS release build.

[Q] Random power off issue

my epic 4g touch was on the cyanogenmod 10.1 wild for the night rom v. jan23v2. every time, if my phone were off a charger for 5-10 minutes the screen would flash to different brightness levels then turn off. it would do this every time since that rom. in order to fix the issue, i tried using sfhub's el29 root to go back to stock to try flashing the same updated rom. i was on el29 rooted and the issue still occured. i would have to plug it in for it to turn on again. is this a battery issue or is it something else? my battery is over a year old. any help would be appreciated. if you need more info, just ask

Time for a new battery.
Sent from my SPH-D710 using xda app-developers app

graydiggy said:
Time for a new battery.
Sent from my SPH-D710 using xda app-developers app
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Click to collapse
thank you. any idea on where to get a samsung one cheap? can i use my sprint warranty to get a free replacement?

Peter41x said:
thank you. any idea on where to get a samsung one cheap? can i use my sprint warranty to get a free replacement?
Click to expand...
Click to collapse
Amazon will have OEM batteries. Be careful though, some will label them like OEM but they are fake. You will probably be able to get a new one from Sprint or Samsung, though.

Peter41x said:
thank you. any idea on where to get a samsung one cheap?
Click to expand...
Click to collapse
I've had good luck with cheap eBay ones for $3-$5. (~$10 for 2 + external charger, shipped from China)
Originally bought a cheap 1800mAh for my Epic, but kept it around and am using in my E4GT (when the orinal battery "puffed" and wouldn't hold much of a charge) Recently added a "2200mAh" one and external charger. It's a tiny bit thicker than my 1800, but still fits under the stock cover. I havent noticed the "2200" giving any better battery life than the "1800" - both work well and I've had no problems.

This issue is happening to me too but seems to occur when I'm downloading something like an MMS or app, or even an image intensive webpage. The screen flashes to different brightness levels and then the battery would suddenly "drain" to zero, where the software tells me it's at zero, but with a little extra charge and a reboot, the power level will be where it was before shutting down.
And none of this occurs while plugged in so I'm reasonably sure it's an old battery, I'd just like some confirmation. What gave it away though? The flashing screen thing had preceded a loss of signal so at first (and for about a week or so) I thought that was what it was until I found this thread.

phamkl said:
This issue is happening to me too but seems to occur when I'm downloading something like an MMS or app, or even an image intensive webpage. The screen flashes to different brightness levels and then the battery would suddenly "drain" to zero, where the software tells me it's at zero, but with a little extra charge and a reboot, the power level will be where it was before shutting down.
And none of this occurs while plugged in so I'm reasonably sure it's an old battery, I'd just like some confirmation. What gave it away though? The flashing screen thing had preceded a loss of signal so at first (and for about a week or so) I thought that was what it was until I found this thread.
Click to expand...
Click to collapse
I would say you need a new battery.
Sent from my SPH-D710 using xda app-developers app

graydiggy said:
I would say you need a new battery.
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Thanks.
When I went to get a new battery, the guy pulled the battery out and spun it on the counter. If it spins, it's expanded, and indicative of being on its last leg or already dead. Of course, you could also palpate the battery and you will feel the bulge but the spin test is simpler, definitive, and more entertaining. Just posting in case someone else runs into this problem or a similar battery problem and come across this thread - try the battery spin test.

Is My Phone Broken: JB Random Power Downs?!

I realize there's been other threads about the topic, but not this specific model and this situation. Specs...
Model: SPH-D710
Android Version: 4.1.2
Build: GB27
Anyway I haven't installed any new apps, obviously apps have been updating, but I haven't installed anything new recently. It started happening just over the past three days, the phone screen will flicker, like it's struggling to refresh then I'll loose cell phone signal, the screen will lock and then power off. When I try to power back on it shows the battery drained? I plug into a power source, let it set for a minute, it shows the correct charge and I can power it back on. It's happening roughly three times a day!
Aside from being annoying, yesterday I was on the road using it for navigation, and it crapped out. I had to find a rest-stop and do the recharge dance. Thank god I had a charger, otherwise.. well I'd have to find a gas station and ask someone, but really that's so barbaric right
So has anyone heard or seen this before? I'm hoping it doesn't mean I need a new phone, it's barely a year old. When it works I love this phone, but it's such a delicate POS sometimes, it really drives me nuts. Any help would be welcome

How's your battery? I have had problems similar to yours because my battery was dieing.
Sent from my SPH-L900 using Tapatalk 2

patrao_n said:
How's your battery? I have had problems similar to yours because my battery was dieing.
Sent from my SPH-L900 using Tapatalk 2
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Click to collapse
My battery drained pretty fast, I installed Greenify and that seemed to help, however I uninstalled Greenify and I'm still having the issue.

Ok take your battery out and sping it on the flat sides. If it spins like a top replace it.
Sent from my SPH-L900 using Tapatalk 2

Your batteries going bad. Replace and good to go again.
I got 2 batteries from ankor for 12 bucks on Amazon its been 6 months now still going strong.
Sent from my SPH-D710 using xda app-developers app

patrao_n said:
Ok take your battery out and sping it on the flat sides. If it spins like a top replace it.
Sent from my SPH-L900 using Tapatalk 2
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Click to collapse
Glad to hear it's a battery issue, however I'd remiss if I didn't ask about this spinning battery diagnostic. So does the battery's casing expand when it's going bad, or getting older? Or were you just screwing with the new guy

Screwing with you. Just kidding. On these batteries when they start to swell you can aldo notice an effect on the charhe it holds. I forgot who actually found it out. But when you can spin it feely its going bad. A new battery will maybe get a turn or two.
Sent from my SPH-L900 using xda premium