Random reboot please help - LG Optimus G Pro

Hey community, I have an E980. I need your help here pretty bad. I was running aicp 7.0 release but ended up flashtooling back to bone stock. I am getting constant and random reboots. Sometimes it is a bootloop, sometimes it gets to the att logo, sometimes it makes it to my home screen, and sometimes I can actually use it for 10 or 15 minutes but it always fails and reboots. Is there anything I can try? I am totally stumped. I figured a tot file flash back to stock would have solved this but it didn't. It almost seems like a hardware failure but I have never dropped it, got it wet nothin. Another real odd deal is when I can't get it to come out of a loop, if I take the back cover off it will start up. I thought maybe it was the connection on the back cover so I put a piece of tape over it but it still does it, but even now it is working with the back cover off but randomly reboots. Its always like this, my signal drops to no bars with the red x and then freezes then reboots. Sometimes it's when I wake it up, and sometimes it's when I start a program. Can anyone please give me some hope?

have you tried with an other battery? maybe it s because of this one that causes random reboots. not sure if it fixes this.
Sent from my LG-E980 using XDA Free mobile app

I would like to try that. I'll have to order one

Try KDZ-ing to stock, clean wipe, don't install anything.

Related

[Q] Help needed for fixing quirky/malfunctioning software!

Hi folks, I've lurked here for quite a while and gotten some invaluable info; so first off thanks for all of the contributions from the gurus here!
Now, I have a pretty strange issue that I haven't been able to find an answer on anywhere. I'm hoping that someone can help me sort this.
The background story:
My wife has a MyTouch 3G Slide that I bought for her back in July. Last week she managed to drop it in some water. It DID NOT get fully submerged since the water was very shallow. However, it did get a slight amount of intrusion. She pulled the battery in a relatively quick amount of time and we let it sit in a bowl of rice to dry out for a couple days.
The current deal:
When I felt the phone was sufficiently dried after a few days, I fired it up. It took a very long time to get out of the MyTouch splash screen and loaded noticeably slower than normal. Once in, the phone functioned perfectly normal. Absolutely no issues at all with any functionality once you get past the security pattern.
However, whenever you put the phone to sleep, it does some funky stuff. The screen goes black for a second and then comes back on, ready for you to swipe down and then enter the security pattern again. Then it will go black again. Then it comes back on. It just continues to do this, never stopping. Sometimes it will go to the security pattern screen too.
So I figured this may have been some hardware issue since it was acting like someone was just repeatedly pressing the power button. First I wanted to try a simple reboot though. Upon rebooting, the phone would not get past the splash screen. It just froze there.
I pulled the phone apart to see if maybe there was some corrosion on the PCB from the water intrusion. Everything looked fine, but while I was in I did a little wipe-down with some alcohol, then I put it back together. After multiple attempts, I was able to get it to boot again. But the boot process was still VERY slow. Occasionally, it would boot into safe mode as well. But when it booted normally, everything would always function great once logged into the phone. This convinced me that it wasn't a hardware problem since the phone would not cut into sleep mode or anything when logged in. It worked perfectly fine. So I figured that maybe there was some sort of corruption that occurred in the software.
So I tried a hard reset. Didn't fix it.
Then I figured that maybe I needed to do a reflash. So I rooted the phone since the water plunge voided the warranty anyways. Once rooted, I flashed TeamFenix 1.7.1 successfully.
But the phone still only fully boots intermittently, and the boot process is still slow. It also has the same problem in sleep mode which is killing the battery fast since the screen is pretty much constantly on. But once in, the flashed ROM works perfectly just like the stock ROM.
Video of the condition:
Since I'm new, I'm not allowed to put any links in my post. But if you type in the string below after the YouTube url, you'll see a quick video I posted of the condition.
watch?v=dX55URtaRHo
So it seems that there is some crazy issue only upon bootup and when the phone is put to sleep. Can anything be done to fix this? Is there a way to locate and fix corrupted software? Any and all help is appreciated!
Sorry for the self bump. Any devs out there have any suggestions? I gotta get this thing sorted.
If its happening on both stock and teamfenix, I'm pretty sure it's a hardware issue. Flashing a rom completely replaces the software, so it doesn't sound like its that.
Sent from my T-Mobile myTouch 3G Slide using XDA App
It actually seems like a problem in the power button. Did you check the contacts for the power button? Repeatedly pressing the power button will first lock it initially and dim the screen. Press again, then it gives you the chance to unlock. Press again and it goes back to sleep. Wash rinse repeat...
Yes, I understand. But if it were an issue with the power button, when you logged into the phone, it would randomly put itself to sleep. It doesn't do that, it functions perfectly normal with no errors whatsoever when you are logged into the phone. This problem is only exhibited in sleep mode which would rule out a hardware issue with the power button.

Gnex randomly shutting off?

So... maybe someone else can help me out here. My phone started doing this really cool thing about a week ago where it will just shut off out the blue. I've been scouring Google for similar problems, but cannot find anything. Lots of people complaining about reboots or sleep of death, but not hard shut downs. I don't have to pull the battery to reboot or anything, and it's not restarting, it just shuts off.
Sometimes it will only do it once or twice a day, other times it will do it 5+ times an hour. There seems to be no pattern to it either. Sometimes I will just pick up my phone and its off. Sometimes I will be listening to music with it in my pocket and it goes out. Quite a few times I've been texting or something and watched it just shut off.
It was right around when I flashed AOKP M5, so I assumed it might be that. I tried a new kernel first, which didn't help. Today I flashed MIUI, hoping it would fix my problem, but nope. Still getting reboots. So it does not seem ROM related.
Anything else I should try before trying to get my phone replaced? Who would the warranty even be through. I bought the phone from Amazon wireless. Them? Verizon? Samsung?
go back to complete stock, then see if the problem occurs
Maybe try using the samsung stock rom, without root. If you still have the problem, I think you should contact amazon. Be sure to reset the flash counter before you send it away
Sent from my GT-9100 using ICS Remix pro AOKP
There isn't a flash counter on the GNex.

Please help!! Phone reboots randomly even on complete stock unrooted.

Okay, I've had my S3 since July of 2012. It has worked perfectly up until about 3 weeks ago. It has just started rebooting randomly and it says it's not sending texts, but the people I'm texting say they receive the message that supposedly fails to send like 5 or 6 times. I've spent the last 2 weeks trying to find a solution online and couldn't find anything. I have flashed probably 15 different roms, including stock rooted. Now I am on complete stock unrooted with stock recovery and I'm having the same issues. I used odin to return to stock. I only have 4 apps installed aside from the bloatware that comes with the phone. I'm sure the texting issue is with T-mobile's service, but the rebooting can't be. It's random, but I can always tell when it's about to do it because the screen will come back on right after I lock it and a few seconds later it will reboot. I have also taken the phone apart to see if the power button is jammed and it wasn't. I removed the actual power button and put it back in just to be sure. The phone still reboots randomly. Is anyone else having this issue and if so have you found a way to stop it? Any suggestions will be appreciated. Thank you for looking.
I guess nobody has had these issues.
Sounds like a defective phone.
Sent from my SGH-T999 using Tapatalk 2
It would of been easier if you had warranty on to just return it instead of going through all that hassle.
Sent from my SGH-T999 using xda app-developers app
I have the same issue, pretty sure its the power button sticking. I'm using the home button to wake it up and a widget on the lock screen to lock it for now until I send it in.
Sent from my Nexus 7 using Tapatalk 2
It stopped. I don't know what it was, but I ran stock for a few days and it just quit. Didn't do anything, but flash it back to stock, It did it for a couple of more days after I flashed it back to stock and then it just randomly quit. It's been almost a full week now and no random reboots. If it starts happening again then I will probably just get a replacement. I do have the insurance through T-mobile, but I don't want to pay the deductible.
Could some dust etc. making power button stuck causing reboots? It could also be unstable rom. If you are oc/uv 'ing the phone that could also do that
Sent from S♣ with XDA App
I had a similar problem with my Amaze, turns out one of the connector pins to the battery was miss aligned and would on occasion cross the line and short. Luckily nothing catastrophic but the phone would just reboot, sometimes continuously. After I straightened it out, problem solved.
Evo4eva said:
Okay, I've had my S3 since July of 2012. It has worked perfectly up until about 3 weeks ago. It has just started rebooting randomly and it says it's not sending texts, but the people I'm texting say they receive the message that supposedly fails to send like 5 or 6 times. I've spent the last 2 weeks trying to find a solution online and couldn't find anything. I have flashed probably 15 different roms, including stock rooted. Now I am on complete stock unrooted with stock recovery and I'm having the same issues. I used odin to return to stock. I only have 4 apps installed aside from the bloatware that comes with the phone. I'm sure the texting issue is with T-mobile's service, but the rebooting can't be. It's random, but I can always tell when it's about to do it because the screen will come back on right after I lock it and a few seconds later it will reboot. I have also taken the phone apart to see if the power button is jammed and it wasn't. I removed the actual power button and put it back in just to be sure. The phone still reboots randomly. Is anyone else having this issue and if so have you found a way to stop it? Any suggestions will be appreciated. Thank you for looking.
Click to expand...
Click to collapse
I'm actually having this exact same issue, as well as crashes which seem to happen when copy/pasting text. Reboots, spamming people supposedly failed messages, the works....
And I'm with Sprint.
This is the SECOND S3 that has done this to me. I returned my first one after being fed up with it, guessing it must have been a hardware problem since I couldn't find anyone else that had this issue.. but this one has done it too, so I just figured I had to accept it....
phsh I wouldn't accept a piece of hardware that acts like that... bug 'em til they fix it or get you something else like the s4
Sent from my EVO using Tapatalk 4 Beta
Interesting to read this. I got my S3 in October, and it just started doing this. Twice it has simply rebooted, both times have been after I uninstalled an app. My phone is completely stock, unrooted. Never been rooted. I took it out of the box and updated it to JB and haven't done anything else. I'm not getting any messaging issues, just the reboots. I'm using Nova Prime, and uninstalling by dragging the icon to the trash can.
I'm not sure what caused mine to stop, but it did. It hasn't done it again since it stopped either. I flashed back to complete stock, unrooted and used triangle away. It was still doing it for maybe a week or two after that, but then it just stopped. It has been working fine ever since. That includes trying 4 or 5 different roms after it stopped just to see if it would do it again. Been running wicked on the same phone for months now without any of the issues I previously had. If your phone is doing this then I suggest either waiting to see if it stops on it's own like mine or get it replaced.

The slow death of my Note 4

Hello!
Everything was working fine until my phone started acting up about 6 months ago. The screen began to become unresponsive, apps crashed when switching between them and random reboots occurred frequently. I thought back then it had to be software related, so I completed multiple factory resets, and completely removed everything on my phone. It became slightly more usable, but these crashed and random reboots still occurred.
Last week, my phone continued to reboot, but a new problem occurred-it no longer would turn on after the reboot. I tried plugging it into the wall, pressing the volume down + home + power to force bootloader mode, but it wouldn't turn on at all. The fix was I had to remove the entire case, take out the battery and put it back in the phone. After that it would turn on, but only for a few minutes before another random reboot occurred and I had to remove the entire battery again. My phone is now virtually useless as I cant before even the basic functions, calling and texting without it becoming unresponsive or shutting off and not turning on.
I narrowed it down to the eMMC chip. I am almost certain that is corrupt, because during some of the reboots it would fail and throw me into download mode with the error:
mmc0_read_fail
or something along those lines. My last attempt at recovering the phone was to the stock rom PE2 with a PIT file (I had created before I started flashing custom roms). Each time I would attempt to flash with ODIN it would result in a:
mmc0_write_fail
However, I was finally able to get the PIT and PE2 firmware to flash. Now I have a half-working phone that will randomly reboot still and in order to turn it back on, the battery has to be pulled out for a minimum of 15 seconds.
New Issue I just noticed: When the screen turns off when the phone is inactive, it won't turn on again after pressing the power or home buttons. Only solution to this is once again, pull battery and hope I boot into system again.
I am pretty sure there is no fix to this problem on the software side, but let me know if you have a suggestion! Thanks!
Same situation. This thing is a lemon!
Sounds like hardware failure.
Replaced the battery yet? My original didn't last fifteen months before it started shutting the phone down. It's the first thing I think of when someone reports having to pull the battery.
Are you checking battery capacity before the battery pull by plugging in when it shuts down? Mine showed 0%. Before the shutdown, it may have indicated as high as 30%. It gets worse.
You didn't mention capacity when plugged so I thought I'd ask.
Sent from my SM-N910P using Tapatalk
One of my note 4 had same issue. Its a hardware issue. I was able to get the phone working by using a heatgun on the motherboard to try and reflow the solder on the chips. The phone works like brand new after the heatgun but the phone would only work for like 3 or 4 days before crapping out again. Ultimately ended up buying a used motherboard on ebay with a clean esn and its working perfectly again.
My wife's Note 4 started the random reboot thing and screen being unresponsive thing last week. She said it randomly started after installing Snapchat, so she uninstalled it hoping that would fix it. It didnt. I put a new battery in it thinking the original was bad, but still same issues. Then did a factory reset but that didnt work. After a lot of searching I stumbled on to someone who mentioned downloading an app called Wakelock. I did and phone has been running smoothly for several days now.
I also recently did the most recent update hoping that would fix the issue, it didnt but during the install I did get one error of emmc read failure or something like that. May just order a used/new motherboard just in case.
Just be careful when swapping out the motherboard as it essentially is taking apart the whole phone including the removal of the LCD.

Random and untimely reboots

Hello everyon everyone.
I have the SM-P600 version, everything was good until the beginning of the week when touchpad began to go off without reason, and completely random.
I first reinstalled several official ROMs from the most recent to the oldest, with no significant improvement
Then i rooted and tried Lineage, it looked good for a while, but in the end same problem.
Please note, when the tablet begins to mess, the reboots are occuring more and more often and after a while it turns in a loop and im not even able to switch it off.
Samsung logo display, black screen, logo, black screen, etc ...
I think rather for a battery-side problem, if some people have faced similar problem, I'm taking help.
Do you know if by chance we can use the tablet without battery to test this theory?
Thank you in advance for any answers.
jb1207 said:
Hello everyon everyone.
I have the SM-P600 version, everything was good until the beginning of the week when touchpad began to go off without reason, and completely random.
I first reinstalled several official ROMs from the most recent to the oldest, with no significant improvement
Then i rooted and tried Lineage, it looked good for a while, but in the end same problem.
Please note, when the tablet begins to mess, the reboots are occuring more and more often and after a while it turns in a loop and im not even able to switch it off.
Samsung logo display, black screen, logo, black screen, etc ...
I think rather for a battery-side problem, if some people have faced similar problem, I'm taking help.
Do you know if by chance we can use the tablet without battery to test this theory?
Thank you in advance for any answers.
Click to expand...
Click to collapse
I think I'd be taking a close look at the physical power button. Seems to me that if it had gone flakey it could cause something like this.
marshallartsoz said:
I think I'd be taking a close look at the physical power button. Seems to me that if it had gone flakey it could cause something like this.
Click to expand...
Click to collapse
Hello and thanks for you answer,
Just to precise i never faced this issue while flashing an official or custom ROM, dont know if it is just luck or it can help in anything
Anyway ill try to check it the power button just in case
It's weird I just started having this exact problem myself. One morning I unplugged it and it had shut itself down overnight. Since then it randomly reboots. Sometimes I can get 20/30 minutes out of it, but once it starts, it can get into multiple reboots with the only way to stop it is to plug in the charger. I tried wiping cashe/dalvic (no help). Nothing was recently changed (including apps). Tried resoldering battery connector (battery was replaced a year or so ago with OEM Sammy). The P600 is rooted with TWRP installed, but no custom ROM. Usually the reboots start while I'm doing something (surfing, email, etc.), but I don't think it will do it while sleeping. I'm considering the power button, but I don't see this exact problem anywhere else, but this post. Any ideas?
OK. My tablet has taken a turn for the worse. Now it is stuck in a continuous boot loop. I tried the power switch, no help. I tried booting into TWRP, and it went back into rebooting before I could do anything. Strange thing is I can put it into download mode indefinitely without it rebooting. Should I ODIN back to stock? I tried the resoldering of the battery connection earlier. Any other ideas?

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