V985 constantly rebooting - G3 Q&A, Help & Troubleshooting

Hi. So, last night, my phone was sitting and charging when I started hearing it vibrate. I looked at it and saw that it was suddenly on the Verizon splash screen. No big deal, it just reboot for whatever reason. But then it kept doing it. It boots up, gets to the lockscreen, starts loading things, and then kicks back out to the Verizon screen.
Reflashing everything fixes it. Safe mode does not. It doesn't happen in recovery mode either.
I've pretty much resigned myself to having lost this, though I did make a backup of everything, restoring it just causes the problems to come up again.
Is there any way I can keep it stable long enough to at least back up the contacts and stuff? Or a way to kill whatever is causing it?

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[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.

[Q] Phone won't turn on

Last night I had dropped my phone from about a foot on a sitting-swing and it hit the ground. I have the black case from the sprint store on it. After that I attempted to turn it on and it just got stuck on Samsung loading screen with the genocide 2.0 logo below it, it then proceeded to be stuck there and eventually rebooted, this never seemed to end. When I attempted to plug it in to charge it the battery charging icon appeared but just has the loading symbol inside of it frozen, after many battery pulls and attempted clockwork-recovery boots failing I decided to go to bed. When I awake I went and tried to turn on my phone which immediately booted up into clockwork recover, fearing for my phones safety I backed everything up on it and then rebooted it. It seemed to work fine! It came on flawlessly and worked well. Throughout the day the battery seemed to drain extremely fast and then eventually died, having just gotten home I have found that the same thing is happening and it won't even charge.
Re flash the ROM then flash journaling on zip right after you flash the ROM then re boot & download you're apps fresh cuz you're data might be corrupted! Hit the thanks button if I've helped in any way! ;-)
Sent from my SPH-D700 using xda premium
I flashed back to stock rom to see if it would turn on, same thing happens, and I don't know if this is significant or not but when my phone boots up the buttons light up, then turn off, then back on again and stay on until the phone reboots itself or the battery is pulled.
EDIT: I have a strong feeling it's my physical battery that is causing the issues because it was working completely fine earlier yesterday.
Try booting in safe mode by holding power and the physical menu button until the phone gets to the lockscreen... Im curious to see if it helps because safe mode might help us get out of soft bricks? I wanna test this theory...
No it does not work, just get stuck at the Samsung loading screen. I don't honestly believe this is a software brick either because of the way it's acting, as I said in my above post I believe it's the physical battery and will probably be going to get it replaced soon

Galaxy S3 wont boot

So I had my Galaxy S3 since it came out. A few months ago I noticed it shut off and wouldn't turn back on. (it would vibrate when the battery was inserted, goto samsung boot screen and never go anywhere from there) I noticed this site and a lot of others having the same problem so I began to trouble shoot.
I cleared my cache by getting into the boot screen and that seemed to fix my problem.
Now about 2-3 months later it started doing the same thing! This time clearing the cache did nothing, heck sometimes I can't even get a chance to clear the cache without it restarting on me again. Sometimes (if I'm lucky) i'll get it to boot up and it will go to home screen without a problem. Little to know it shuts off without warning and I'm stuck at the beginning.
This phone has never been rooted. Please help! I'm using a mytouch 4g now and this thing is slow as molasses! Do I have any chance to recover my s3 or is it sudden death syndrome?
Also I had alot of pictures/videos on the internal hard drive of this phone, is there anyway to retrieve those since my phone can't even boot up?
nexus24 said:
So I had my Galaxy S3 since it came out. A few months ago I noticed it shut off and wouldn't turn back on. (it would vibrate when the battery was inserted, goto samsung boot screen and never go anywhere from there) I noticed this site and a lot of others having the same problem so I began to trouble shoot.
I cleared my cache by getting into the boot screen and that seemed to fix my problem.
Now about 2-3 months later it started doing the same thing! This time clearing the cache did nothing, heck sometimes I can't even get a chance to clear the cache without it restarting on me again. Sometimes (if I'm lucky) i'll get it to boot up and it will go to home screen without a problem. Little to know it shuts off without warning and I'm stuck at the beginning.
This phone has never been rooted. Please help! I'm using a mytouch 4g now and this thing is slow as molasses! Do I have any chance to recover my s3 or is it sudden death syndrome?
Also I had alot of pictures/videos on the internal hard drive of this phone, is there anyway to retrieve those since my phone can't even boot up?
Click to expand...
Click to collapse
I am currently having the same exact issue. I suspect it is a faulty power switch. I will be replacing it, if it works i will update and let you know
had tisesr
mentisimperium said:
I am currently having the same exact issue. I suspect it is a faulty power switch. I will be replacing it, if it works i will update and let you know
Click to expand...
Click to collapse
I've heard of that too, I took apart my s3 and removed the power button as well as blew some compressed air through it. Still didnt work but yes keep me updated!
I ripped my power switch from the motherboard. To turn it on you plug it in and hold home and volume down to go to the odin screen. click volume down to reboot the phone. I am waiting for a new switch to come in the mail which I will attempt to solder onto the board.

Note 4 stuck on yellow Sprint startup screen

Twice this week my alarm didn't go off (luckily I set a backup today) because sometime throughout the night something happened. When I woke up the phone was frozen on the yellow Sprint Spark startup screen. I needed to pull the battery and everything started up fine. I updated to Lollipop about 2 weeks ago which is where I'm guessing the issues stem from.
Is there anything I should try other than restoring to factory and starting over? I'd prefer to not have to wipe everything from my phone but these issues are becoming problematic. I am not rooted.
Thanks.
You answered your own question. You need to try a factory reset. Problems happen when you upgrade to new software without wiping.
dschachm said:
You answered your own question. You need to try a factory reset. Problems happen when you upgrade to new software without wiping.
Click to expand...
Click to collapse
Dschachm is correct. Then if you root and install TWRP you can back it up with all of your apps and data. So if there is ever a problem again, just restore and done.
So I ended up doing a factory reset and while the phone certainly started running faster with better battery performance after the reset I'm still having this issue. I would say it occurs 2-3 times a week. It has only occurred overnight which is typically when I charge my phone so I'm pretty sure it is related to being left connected to the charger. The majority of the times I will wake up with a dim yellow Sprint screen and everything else frozen though occasionally the screen will be black with the led notification light red. In both situations the screen will not respond to any button pushes or holds and I need to pull the battery and then everything will start up fine.
Does anybody have any suggestions here on what I should do? I guess I can try and restore one more time and see but I don't really know why it would be different and it is certainly a pain to keep restoring the phone and losing all my settings. I definitely don't want to root now since I believe that voids the warranty and if I can't figure anything out with this I'll certainly be requesting a new phone from Sprint. Before I start dealing with Sprint though I thought I would check here first. Through all my searches on the internet I haven't seen anyone else complaining about this problem.
Thanks.
I've gotten the sprint yellow screen and nothing else.phone doesn't turn on? When I try turn it on after removing batteryou I get the android figure and phone turns off? How can I reboot or start the phone..?and can I save my contacts?

Weirdest issue ever! HELP NEEDED ASAP :(

Hey guys, I've been having a really weird issue for a couple of days now. For your better understanding I'll list the things that I did with my d855 (Including some stupid ones)
1. I was on a cm 13 nightly rom, I was getting pretty bored so I decided to try out the fulmics 4.2 . So, I did. I flashed it without any hiccups. Everything seemed to be going fairly well. (I did make a TWRP backup and i also checked md5 of the zip file. It matched out)
2. I installed all of my apps that i use, Set up my wallpapers, nova, etc. I used it for a whole day and i noticed that the sot improved quite a bit from cm 13.
3. I'm in my bed, obviously not sleeping, you know how we do. And an incredibly stupid idea came to my mind. I thought "Hey! It's 4'o clock in the morning and i have school tomorrow, BUT WHO GIVES TWO ****S?! why not try out the lg g4 camera app ?!? Now, I had tried it before a long time ago, The camera didn't work, But the phone definitely did. So I wasn't paying too much attention on what the thread said about which version of android it was for. And just like a complete moron i downloaded the thing and proceeded to place the apk and 'libs' folder on my phone. I did give them proper permissions.
4. After that I went ahead and rebooted my phone. It booted just fine. I tapped on the camera app and it gave me an error. So i rebooted again, same as last time it booted up just fine but the camera didnt seem to work. Then suddenly it just shut down and then the lg logo flashed. It booted to the homescreen just fine. Then it turned off again and rebooted again. This loop started to go on and on forever.
5. So I decided to boot into twrp and wipe my art/dalvik cache and normal cache. Then i pressed on reboot. This time the phone didnt turn off, it optimized all of my apps. It took a while but i was on my homescreen and it didnt turn off. So I went ahead and opened up root explorer, located to where i pasted the camera, deleted the libs folder and the apk and also renamed my original camera app from .bak to .apk . Then I rebooted again, and it started the weird looping thing once again.
6. I realized that it boots up just fine if it's plugged in. But it seemed to turn off after 5 mins or so even when plugged in. I thought I messed up my rom or something so i decided to check by entering into recovery. But the result was the same. It just turns off. So since it was turning off even when i was in recovery i thought it was a faulty battery.
7. So i busted out my ZTE pocket wifi router and proceeded to take its battery and hold it up against my d855's battery pins with my finger. (Probably not safe) And the phone seemed to work just fine. I could use it for days without any issues. So at that point im like 110 percent sure its a faulty battery. Fair enough.
8. But, just to be certain i thought lets try doing a factory reset and flash the fullmics again. Result = Wank.
Then I wiped the cache again. Result = Wank. Then i decided to restore to the backup i made earlier that day. Result = An oreo to be given to the one with the correct guess.
9. At this point i wasn't 110 percent sure that it was a faulty battery. I KNEW it was a faulty battery. I was feeling it in my left testicle. So I decide to finally sleep cuz you know, gotta get some sleep, got a big day ahead of me tomorrow. Cuz I dont have my phone. So, I prepare myself and go to sleep.
10. The next day I decide to give it one last shot. I was thinking about wiping it clean and restoring to the backup again.
11. This is where the interesting thing happens. Bear in mind, I am NOT plugged in. Im on my G3's battery. I hold down the volume down and power button. The lg logo shows up. I let go of the buttons. I press them again. The white factory reset screen shows up. Now, I left my phone on that screen for legit 20 mins ladies and gentlemen and it didnt turn off once. But as soon as i click yes for twrp to launch the phone turns off before the twrp logo can show up. I tried the same thing with the ZTE battery as well, and it worked just fine. Only this time it actually booted to twrp. And it booted into the system as well.
Now, wtf is this? Wouldn't the phone turn off in the factory reset screen if it was faulty? And if the battery isn't faulty, then why does it work with a different battery but not with the lg one?
Now, My question to you guys, WHAT SORCERY IS THIS?
Help me out people. Expert help needed. TIA
*sigh*
It's a faulty battery mate. The phone stayed in the factory reset screen because the battery usage was basically insignificant. When you tried to go to recovery mode, the phone used more battery and boom, dead phone Happened to me too, new battery solved it.

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