Develop Bugs

So is it just my epic?

So no matter what rom i load on my phone i get the same thing.... it will not wake up and i have to remove the battery. Now on stock its fine! but any rom.. and yes i have tried them.. numerous times.. Right now i have AOSP genocide 2 and its working the best. I can go 4 or 5 hours before i need to do a battery pull (sometimes). This morning i have had to do i battery pull twice but now it seems to be fine.
Now its not over clocking that is doing it. I have been all through that. My phone blazes when at 1.3ghz but will not turn back on ever with out a battery pull. right now there is no overclocking and voltage control is denied root. This seems to be working the best.
I really want something besides the stock rom. mainly because my phone is snappier and the battery life is wayyyyyyy better. So is it just my phone? Should i bring it into sprint and get a new epic?

NissanNick said:
So no matter what rom i load on my phone i get the same thing.... it will not wake up and i have to remove the battery. Now on stock its fine! but any rom.. and yes i have tried them.. numerous times.. Right now i have AOSP genocide 2 and its working the best. I can go 4 or 5 hours before i need to do a battery pull (sometimes). This morning i have had to do i battery pull twice but now it seems to be fine.
Now its not over clocking that is doing it. I have been all through that. My phone blazes when at 1.3ghz but will not turn back on ever with out a battery pull. right now there is no overclocking and voltage control is denied root. This seems to be working the best.
I really want something besides the stock rom. mainly because my phone is snappier and the battery life is wayyyyyyy better. So is it just my phone? Should i bring it into sprint and get a new epic?
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Are these freezes ONLY happening when running o/c? If so, then your hardware might not like o/c speeds. Please clarify that it is not an o/c issue due to the information you provided above.
If you're stable and having no locking issues on stock, then flash ROMS/kernels and of the bat start boosting to o/c speeds then seeing instability, how/why are you ruling out it's not a o/c or hardware limitation?
NissanNick said:
I really want something besides the stock rom. mainly because my phone is snappier and the battery life is wayyyyyyy better. So is it just my phone? Should i bring it into sprint and get a new epic?
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I don't think sprint will swap your phone out just because you can't manage stable o/c speeds on your phone. LOL

Sounds like you need to do the classic Wipe 3X before flashing.

Sorry guys i should have been more clear. I am not a noob i always wipe 3x. It is not a O/C issue. I have gone through all the clocking and my phone just does not like it.. I can live with that. What i am saying is even when not O/C and denying all access from anything that could effect my processor the ROM's Still don't work right. They freeze even with NO O/C at all! Every one of them. So i am thinking i just got the bad end of the silicon?
Also i relies Sprint will not just exchange my phone.. But im sure i could come up with something lol.
Well i really like my epic but i am thinking of switching to the photon if i cant get the ROMS to work right. I really wanted to wait until next year to upgrade.

NissanNick said:
Sorry guys i should have been more clear. I am not a noob i always wipe 3x. It is not a O/C issue. I have gone through all the clocking and my phone just does not like it.. I can live with that. What i am saying is even when not O/C and denying all access from anything that could effect my processor the ROM's Still don't work right. They freeze even with NO O/C at all! Every one of them. So i am thinking i just got the bad end of the silicon?
Also i relies Sprint will not just exchange my phone.. But im sure i could come up with something lol.
Well i really like my epic but i am thinking of switching to the photon if i cant get the ROMS to work right. I really wanted to wait until next year to upgrade.
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It's not the overclocking that causes your phone to go into sleep of death, it is the low end. 100 Mhz causes sleep of death on a lot of phones on a custom ROM. Set your minimum frequency to 200 Mhz and you will be fine. Don't change any of the stoick voltages.

Try using stock speeds (400-1000). Then work your way incrementally in both directions to see which frequency(ies) cause your issues. Each phone is unique, so find the sweet spot.
I get the black screen of death about twice a month running twilight 1.1.1. My phone runs 200-1000 with no undervolting and set on conservative. I'm just too lazy to bother playing with settings since I'm holding out for SRF 1.3 to release.

[FIX] Pops and crackles in headphone output.

Hey everyone, just thought I would let it be known that (at least on my phone) overclocking past 1.8GHz causes horrible clicks and pops when listening through the headphone jack. I am using the Rogers Stock ROM with the latest KT747 kernel, and the issue appears when clocked to 1.89GHz, even though the rest of the phone runs stable. Took me a while to track down the problem!
I was hoping people with other kernels/roms/configurations could weigh in to see if this is an isolated or a widespread issue. For the time being I have just decided to overclock manually when it is needed.
EDIT: It appears after more testing that it was the kernel itself. Switching to stock kernel fixed the problem.

MatinatorX said:
Hey everyone, just thought I would let it be known that (at least on my phone) overclocking past 1.8GHz causes horrible clicks and pops when listening through the headphone jack. I am using the Rogers Stock ROM with the latest KT747 kernel, and the issue appears when clocked to 1.89GHz, even though the rest of the phone runs stable. Took me a while to track down the problem!
I was hoping people with other kernels/roms/configurations could weigh in to see if this is an isolated or a widespread issue. For the time being I have just decided to overclock manually when it is needed.
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isn't your phone blazing hot to the hand?

Death&co said:
isn't your phone blazing hot to the hand?
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Suprisingly the temperature increase is hardly noticeable. I tested while playing N. O. V. A. 3 and a few other games. My One XL got burning hot while overclocked to 1.7GHz, even though it's the same chip, which I find strange.

I had this probelm as well on my SGS3, ended up exchanging my phone for another reason and the new phone doesnt do it anymore.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

The galaxy s3 explodes with stock temps, I would be afraid to oc to 1.9GHz Oh, and I would edit the title from [FIX] it's kind of misleading since there isn't a fix here.

MatinatorX said:
For the time being I have just decided to overclock manually when it is needed.
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I'm still trying to figure out when you would "need" to overclock.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

americasteam said:
I'm still trying to figure out when you would "need" to overclock.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
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I'm a power user. I do just about everything with my phone, including lots of gaming with emulators. Perhaps I got a higher than normal quality chunk of silicon, but the phone didn't overheat at all, even when overclocked. The only time it got noticeably warm was while overclocked, gaming and charging all at once.
To those having this problem, it appears it wasn't related to overclocking after all, as the issue appeared a day later on stock frequencies. Changing back to a stock kernel fixed the problem.
In the end I sold it and bought an international SGS3 from eBay. I don't care for LTE, but the Wolfson DAC and Mali-400 GPU appeal to my usage case nicely.

MatinatorX said:
Perhaps I got a higher than normal quality chunk of silicon, but the phone didn't overheat at all, even when overclocked. The only time it got noticeably warm was while overclocked, gaming and charging all at once./QUOTE]
Seeing posts like this just make me cry inside...from the day I first got my phone and activated it, I have been having overheating problems. No one would take my device back so after my 30 day "return" period or whatever, I decided to root my phone to underclock/undervolt to solve my problem....but even know, my phone gets warm by just using stock Browser after a fresh install (not Chrome or anything else) WITH underclocking.
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SGH-i747m overheating

Hello there xda. I bought my first SGH-i747m(Canada Bell version) and it had a pretty serious heat problem when I did use my cellphone doing anything for more than 5 minutes. After 15 minutes it usually bothers me too much so I just stop using my device.
I didn't try anything to fix it yet other than using a JB rom(ParanoidAndroid) on both my first device, and now my second device. They both do the absolute same thing. The bottom half gets really hot while the top half stays really cool.
Is that a common thing? If so, is there any fixes? It's really horrible to use a half hot/cold device, even worse than using a fully hot device.

Nah
Try turning Powersave On.
I had issues with overheating too.
Now they are all gone.
I'm running Nostalgia 7.5

It gets hot at the bottom because that's where the CPU and all that good stuff are, and that good stuff gets hot. Mine doesn't get crazy hot down there but it is definitely warmer down there then the top, that much is normal. Yours may be to hot down there however... Idk. But I've seen others with this issue cool the phone down with custom kernels. I've also seen people say custom kernels make there phone hotter.. Try it out.
Sent from my SGH-I747M using Tapatalk 2

bravomail said:
Try turning Powersave On.
I had issues with overheating too.
Now they are all gone.
I'm running Nostalgia 7.5
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Click to collapse
I'm on custom JB, so there' no "powersave".
I guess I'll try different kernels etc. I'm quite close to actually selling the device, overheating is one of my pet peeves.

Are you sure its overheating?
Like the gentleman a few posts up said. Depending on how you use it. The phone will get warm.
It should never be actually hot, to the point where it will harm you if you pick it up.
Sent from my SAMSUNG-SGH-I747 using xda premium

try going back to stock, all of a sudden the phone doesnt get as hot.
or try underclocking your kernel on custom. AOKP and CM both have an out of the box clock of 1.8 Ghz.
tune it down to 1.3 or 1.1. issue gone.

ThatJawn said:
Are you sure its overheating?
Like the gentleman a few posts up said. Depending on how you use it. The phone will get warm.
It should never be actually hot, to the point where it will harm you if you pick it up.
Sent from my SAMSUNG-SGH-I747 using xda premium
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I feel like I shouldn't be complaining, and that it's not "overheating" but it's getting warm. I'm used to my SGS1 which runs ice cold whatever I do.
I just underclocked it, but I don't even feel the difference. I'm now running the new ParanoidAndroid with the custom kernel recommended in here. It has all the tweaking tools necessary.

Happened even on stock ROM
Mine runs a bit warm too. It is warm to the point where is gets uncomfortable to keep in my pocket at times and as far as I know it is doing "nothing". It will be fine, then I check an email or G+ notification then it goes crazy.
One commenter suggested going back to stock but mine has been doing the same thing since then, it just seem a bit more regular for the last few days. I am now in KyanROM 1.3. I am going to give that po.wer save thing a shot over the next day or so and let you guys know how that goes.

Use setcpu load up the setcpu widget and tell up what tempature your phone is
Sent from my SAMSUNG-SGH-I747

I notcied it is overheating when it's on LTE and the battery drain fast. I turned LTE off and I am using 4g or wifi and i don't have this problem

I noticed my phone started connecting to LTE since this week too but my overheating problem started long before that. What I noticed though is that the battery also started to drain a lot faster when it started. For the battery drain, I am thinking it is either that LTE thing or a rouge app trying access my GPS a lot since the icon keeps popping up more and more in the notification bar "searching". For now I have disabled LTE and GPS until I have time to investigate them.
By the way, I tried using PowerSave, as someone suggested to help with the overheating, but it screwed up how some of my emails are displayed so I turned it off.

[Q] random reboots in every ROM lg nitro hd i

Hi Guys
Well i have install several ROMS wich as HO!NO! full throtlle, Cyanogenmod 9 an 10 stables and Nigthly edition, JellyBam and others that i not even remember and all of them always in some point they just reboots and im really hate it. I use wakelocks app and it works for a few days but eventually it reboot and he battery drain really fast, 8hours in EDGE and just a little chatting on whatsapp and a few calls.
i always wipe system, datvilks etc, im kind of new on this stuuuf but i think im doing it correctly.
Im starting to think that maybe its a hadware problem. Onces i ask some crappy tech gay in a store and he told me that i should buy another battery i dont know why, i thought that he just want to sell me the battery but i dont know.
Can anyone help me or recomend a ROM or something?
I just want a ROM that doesnt reboot and good battery life and i can do normal stuff. i dont care about overclocking or anything like that,
Thanks in advance

I would install a stock rom, either stock AT&T gingerbread or ICS for the Nitro and see if it still reboots. If it does, I think you have a hardware problem.

itiskonrad said:
I would install a stock rom, either stock AT&T gingerbread or ICS for the Nitro and see if it still reboots. If it does, I think you have a hardware problem.
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I would go here first: http://www.att.com/esupport/article.jsp?sid=KB413885&cv=820
This will make sure you are 100% stock. Then if you are still having issues you know that it is a hardware problem. Just make sure you do a full wipe after install.
Sent from my LG-P930 using xda app-developers app

Sparcots miui ics port is the only rom that has zero bugs, black screens, or reboots for me. I've tried everything else.
Sent from my LG-P930 using xda app-developers app

Another potential issue is your SD Card.
I've also noticed lately that my Nitro sometimes randomly reboots. I run with the CM10 Nightlies. The other day, after installing a new nightly, it was really bad, almost constantly rebooting. I took out the battery, removed the SD card and let it sit for awhile (like 1/2 hour or so). Then I put everything back together, reinstalled the nightly and it's MUCH MORE stable now (still randomly reboots, but the instances are much less).
Give that a try and see if it helps at all.
Good luck!

Hi All!
I have LG P936 Optimus true hd with vodafone v20c firmware.
It`s regularly several spontaneous reboots per day. I saved logs with one reboot
03-13 17:03:41.993 F/libc ( 417): Fatal signal 11 (SIGSEGV) at 0x00000001 (code=1)
03-13 17:03:42.404 I/DEBUG (10445):
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how it can be solved? Help please!

My solution has been to just stick with Gingerbread.. No rebooting, good battery life even with the stock battery, runs all the apps I need.
I do miss ics/jellybean, but I rather have a stable phone with great battery life than a pretty, unstable bleeding edge phone.
If anyone wants to build an awesome gingerbread/ics hybrid.. Then I am down. Lol.
Sent from my LG-P930 using xda app-developers app

Can you tell what happened based on the logs?

two P930s (NItro HD), one with hardware issues
I have two P930s. One of them is much more sensitive to ROM settings and I find I need to limit the CPU to 1200 Mhz or so to prevent random reboots.
The other one works well at full 1500 Mhz speed. This particular model seems to have inconsistent hardware build quality. It makes me reluctant to try any other LG devices (a relative has an LG dishwasher that has also been troublesome, with random shutdowns and error codes).

possible causes
1 - bad sd card
2 - bad flash
3 - unstable recovery .
for me , i have noticed the same , and found it fixed once i upgraded my recovery

1 - bad sd card
its rebooting without sd card
2 - bad flash
its rebooting on two v20c firmware what I used
3 - unstable recovery .
I use official kdz firmware only, not cwm

I' ve got the same problem. I've changed the sd card but it didn't work.

Similar issues here with a Nitro that a friend let me borrow while I'm waiting for parts for my other phone. Random reboots on several different ROM's including stock.
I'm going to try Kernel Tuner and up the voltage a little and see if the phone is more stable. wistlo mentioned limiting the CPU to 1200 Mhz and I think he may be on the right track. If the processor cannot handle being clocked to 1500, which is stock, then a common method (at least with PC's) is to either lower the Mhz or increase the voltage. Or both.
I just tried this a few minutes ago and I'll report back later.

budroid said:
Similar issues here with a Nitro that a friend let me borrow while I'm waiting for parts for my other phone. Random reboots on several different ROM's including stock.
I'm going to try Kernel Tuner and up the voltage a little and see if the phone is more stable. wistlo mentioned limiting the CPU to 1200 Mhz and I think he may be on the right track. If the processor cannot handle being clocked to 1500, which is stock, then a common method (at least with PC's) is to either lower the Mhz or increase the voltage. Or both.
I just tried this a few minutes ago and I'll report back later.
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My phone was still unstable. I decided to try a stock Gingerbread ROM and it seems to run very, very well.

budroid said:
My phone was still unstable. I decided to try a stock Gingerbread ROM and it seems to run very, very well.
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Yeah, i remember downgrading to GB to root, didn't use it muchzbut it never once rebooted.
Bought mine last week on ebay brand new (packages sealed and everything), i let it fully charged and started using it.
Came with stock ICS and has been constantly rebooting for the past week.
If i didn't live overseas and didn't have to pay so much money to clear through customs here i would have returned it, but i'm stuck with it and searching for help.
Funny thing is i've gamed on it for hours straight and stability tests for more than 2 hrs and it never rebooted. Then i'll whip out the keyboard to type a message or install an app on play store...or simple web browsing and BAM!....reboots
I've changed to 3 SD Cards even tried without it, still reboots.
All wireless signals off, reboot.
Different ROMS/Kernels, factory reset/wipe, Battery cover off, diff. governors I/Os, Underclocks & Overvolts, tried it all....except going back to GB.
It kind of irks me to know that i came from a GB phone to upgrade to a "new" phone that can only run on GB stable.
It always crashes during some really "stressLESS" stuff, lol. CPU scaling problem maybe?
Also, with no SD Card installed and on boot i get a "SD Card damaged. Try Reformatting" error. Is it normal to get this error with no SD installed?

squatch04 said:
...
Funny thing is i've gamed on it for hours straight and stability tests for more than 2 hrs and it never rebooted. Then i'll whip out the keyboard to type a message or install an app on play store...or simple web browsing and BAM!....reboots
...
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This definitely makes me think you've got a CPU scaling problem. If you're doing something consistent, like playing a game or stress testing...The CPU will likely stay at a single frequency...But in your case, once you start doing some other activity (which very likely caused a CPU frequency change), the reboot occurs.
Definitely try installing SetCPU and set both the minimum and maximum frequency to something midrange, like 1.2GHz. This way you're locking the phone to a single value (no scaling) and not the max frequency so you won't overload it. Then do what you usually do when it reboots and If the phone stays stable, you'll know the problem is likely an issue with CPU frequency scaling. If it still reboots, at least you've removed one possible reason from the list.

Namuna said:
This definitely makes me think you've got a CPU scaling problem. If you're doing something consistent, like playing a game or stress testing...The CPU will likely stay at a single frequency...But in your case, once you start doing some other activity (which very likely caused a CPU frequency change), the reboot occurs.
Definitely try installing SetCPU and set both the minimum and maximum frequency to something midrange, like 1.2GHz. This way you're locking the phone to a single value (no scaling) and not the max frequency so you won't overload it. Then do what you usually do when it reboots and If the phone stays stable, you'll know the problem is likely an issue with CPU frequency scaling. If it still reboots, at least you've removed one possible reason from the list.
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It was suggested in another thread that setting the governor to conservative 486 min 1404 max fixed the BSOD, so I tried it and haven't had a single reboot since I posted the last time. I was lucky if I got 30 min before trying it out.
I agree with you, definitely seems to be CPU scaling issue.
Conservative gradually increases the speed compared to the massive min to max spikes you'd get with ondemand.

I will try that with CM10.1 Rc2 with Wind Kernel. I got a few reboot when using my Calendar app for example, while low on battery.
Sent from my LG-P930 using xda app-developers app

radhames562 said:
Can anyone help me or recomend a ROM or something?
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Try one thing: buy you a new microsd card and see if it helps

salimbaba said:
for me , i have noticed the same , and found it fixed once i upgraded my recovery
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Tell me, plz, how can I do that? Now I have old 5.8.0.2 recovery. But since I dumped old 8Gb Sandisk and inserted 16Gb Sandisk I now had no reboots. But I want new recovery nonetheless

Overheating Issue is bothering me

I'm not exactly sure why its been overheating, I've noticed its been like this since I rooted. I've tried multiple roms, all 4.2.1 so I'm not sure if its that. Either its messing around in the camera, browsing the web, or in the system settings changing settings it usually begins to heat up.
What can I do to fix heating issue? Its usually 100+ temp.

Have you messed with CPU frequencies or voltages? If you OC, that can make your phone get hot. Or having your brightness high for a long period of time can as well. Your phone might also just not like certain kernels. Try going back to stock via Odin and see if it goes back to normal.

Towle said:
Have you messed with CPU frequencies or voltages? If you OC, that can make your phone get hot. Or having your brightness high for a long period of time can as well. Your phone might also just not like certain kernels. Try going back to stock via Odin and see if it goes back to normal.
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I haven't OC but because of the heating I've tried under clocking. The tempt stay below 100 but, the phone became sluggish. Lower the brightness does have an impact on the temp. but it only slows it down compared to when it quickly became hot using applications.
I'm not exactly sure how kernels work but would I be able to use the samsung stock kernel on my AOKP rom while still keeping the features I'm already using?

You might actually have a faulty phone. You're the third person I know with an overheating issue. But the only difference is you are rooted. everyone else is actually stock and they have just bought their phones recently. One phone was only a day or two old and the other was under 3 months old. There is a chance you may have a faulty phone. But who knows.
Sent from my SGH-T999 using xda premium

Are you doing this while charging the phone? Also your area might be very humid and hot bunch of stuff could contribute.
Sent from my SGH-T999 using xda app-developers app