Galaxy S3, Cyanogenmod 10.2 stuck on boot loop - Android Q&A, Help & Troubleshooting

I installed Cyanogenmod 10.2 a few days ago, and has been working fine up until about an hour ago. My phone basically locked up while I was using Spotify, so I did a hard reboot, and got stuck in a boot loop. I tried to reboot a few times with the same results. I didnt have much on my phone, so I did the factory reset (using Teamwin recovery), but after that the phone was still stuck in the boot loop. After that, I tried the "Format Data" option. After going through, It was still stuck in the boot loop. I've also tried to restore backups, but to no avail. I'm not super knowledgeable about the whole inner workings of rooting. I didn't want to do the advance wipe (includes internal storage, system, USB-OTG) for fear of really messing something up. If it completely restores to factory settings, i don't really care, I just dont want my phone to be completely unuseable.
Any help would be appreciated.
AT&T Samsung Galaxy S3

570beardsman said:
I installed Cyanogenmod 10.2 a few days ago, and has been working fine up until about an hour ago. My phone basically locked up while I was using Spotify, so I did a hard reboot, and got stuck in a boot loop. I tried to reboot a few times with the same results. I didnt have much on my phone, so I did the factory reset (using Teamwin recovery), but after that the phone was still stuck in the boot loop. After that, I tried the "Format Data" option. After going through, It was still stuck in the boot loop. I've also tried to restore backups, but to no avail. I'm not super knowledgeable about the whole inner workings of rooting. I didn't want to do the advance wipe (includes internal storage, system, USB-OTG) for fear of really messing something up. If it completely restores to factory settings, i don't really care, I just dont want my phone to be completely unuseable.
Any help would be appreciated.
AT&T Samsung Galaxy S3
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I'd say you should do an advanced wipe. Just make sure your SD cards aren't checked to be wiped! After that, flash an older version of the ROM (cm 10.1) and everything should boot.

Gold1e said:
I'd say you should do an advanced wipe. Just make sure your SD cards aren't checked to be wiped! After that, flash an older version of the ROM (cm 10.1) and everything should boot.
Click to expand...
Click to collapse
OK, so I went through the Advance wipe (removed my SD card just in case), and now it won't even get TO the boot screen, it just sticks on the Galaxy S3 screen. So, basically the only thing I can do is boot into recovery mode. I can't get past that no matter what I do. Any other suggestions? Starting to hope I have an upgrade available...

Anyone?

Did you fix the problem?!
I'm having the exact same issue now. Any luck?

Related

Phone keeps rebooting. (loops)

First time I'm posting so hey.
I just bought a HTC Hero today and decided to load a custom ROM onto it.
I flashed it fine, and installed modaco earlier (file name: 2.8-update-hero-modacocustomrom-core-signed).
So when I powered it back on, it looked like it worked fine, but I must of went wrong somewhere.
The phone will boot up, stay on for like 5 seconds, and then restart. When it comes on, I can't do anything cause it freezes on the lock screen then just restarts.
I'm pretty sure I messed up by putting that ROM on a t-mobile UK Hero(which I unlocked). I aint sure as I'm only new to this.
Any advice on how to fix this?
did you do a phone wipe before installing the custom rom?
I formatted the SD card.... I think before I flashed it.
Then just put the ROM on the root of the SD card.
See it looked like it done everything fine with the ROM.
I held in the home/power buttons, loaded the boot menu.
I did a "Ndroid back up" (did I spell that right) - so I could restore in case something like this happened (which I did, since I need my phone lol), then picked "SD Choose", picked the modaco ROM and it seemed to install fine. Took a few minutes. Install complete. I rebooted the phone.
Then it loaded the normal boot screen, and would literally last only 1 second and freeze on the lock screen saying no signal, then it would reboot. And loop this pattern.
Neo-Dragon said:
I formatted the SD card.... I think before I flashed it.
Click to expand...
Click to collapse
A wipe has nothing to do with the SD card. It is essentially resetting your phones internal memory back to "factory" defaults. I take it you have a custom recovery image, as you mentioned making a Nandroid backup - you will find an option to wipe there.
Regards,
Dave
So if I wipe the phone before hand and then upgrade it should be fine?
If I do a nandroid back up, will I still be able to roll my phone back if it fails?
A wipe now may fix your problems with you needing to upgrade again.
My suggestion would be trying this first - if it doesn't help, restore your nandroid backup, wipe, and apply the new ROM again.
Regards,
Dave
Cheers mate.
After the wipe, I re-installed the ROM and it works perfect.
Thanks again.

Vegan Ginger Edition - Endless Reboot

I had Vegan Ginger Edition running and it was working great. I decided to Factory Reset the tablet. I used Settings|Privacy|Factory Reset.
But it went into endless reboots, I think. What it was doing is that the screen that says Vegan Tab Ginger Edition comes and it does the animation (shocking and flashing), and it does this like 3 times and then the screen goes blank for a second or so and then the animation starts again, and so on, and it keeps on repeating forever and then it would turn off automatically.
I booted into recovery Clockwork Recovery, and tried to do wipe data/factory reset, wipe cache partition, etc, but nothing helped.
I eventually ended up in doing Wipe Dalvik Cache. Now it does not even get to that Vegan Tab animation. It now gets stuck at "Powered by G-TABDEVS" screen.
Any suggestions? Do I need to re-install? If so I guess I will have to copy the zip to SDCARD and then install it, since I can't boot at all. Is there any other option?
Ya, just reflash vegan ginger.
I reflashed it. It now moves on and does not stop at G-TABDEVS screen, but it is exhibiting the same problem. Repeated VEGAN-TAB GingerEdition screens.
What do I do?
I just flashed CyanogenMod, and even that exhibits the same issue. I even went in and did mounts and storage>format system as well as format data. And then flashed it. But still the same.
More bad news. I nvflashed bekit's original image. It now is showing the original big eliptical g-tablet logo as it boots up, but it continues to cycle between the birds and the gtablet logo.
CWM is also gone. When I try to go into recovery all it displays is the big triangle with exclamation sign for a second or so and then restarts the tablet going back into the endless cycle.
I am now totally stuck. Please help.
have you ever repartitioned your device using Clockworkmod Recovery?
I've seen the tablet just bootloop on the bootanimiation if you have never repartitioned. Mine did it and so did a friends of mine. Tablet working great for weeks, installed different ROMs then one day a reboot and it just loops the bootanimation. Repartitioned in CWM (2048/0) and the problem never returned.
Of course you need to get CWM back on. Read the threads on NVFlash and you should be able to just nvflash the clockwork image to the device to boot in to CWM. Repartition and reinstall your ROM.
http://viewsonic-gtablet-for-dummies.webs.com/starthere.htm
tcrews said:
have you ever repartitioned your device using Clockworkmod Recovery?
I've seen the tablet just bootloop on the bootanimiation if you have never repartitioned. Mine did it and so did a friends of mine. Tablet working great for weeks, installed different ROMs then one day a reboot and it just loops the bootanimation. Repartitioned in CWM (2048/0) and the problem never returned.
Of course you need to get CWM back on. Read the threads on NVFlash and you should be able to just nvflash the clockwork image to the device to boot in to CWM. Repartition and reinstall your ROM.
Click to expand...
Click to collapse
Thank you so much. I got out of this mess. I clearly remember repartitioning 2048/0, but looks like Android Factory Reset corrupted it or something.
For the record, this post helped:
http://forum.xda-developers.com/showpost.php?p=10951417&postcount=1
shah123 said:
Thank you so much. I got out of this mess. I clearly remember repartitioning 2048/0, but looks like Android Factory Reset corrupted it or something.
For the record, this post helped:
http://forum.xda-developers.com/showpost.php?p=10951417&postcount=1
Click to expand...
Click to collapse
Hahaaha, and for the record, my start here page code double red takes care of your problem. Not only that, I've also provided nvflash files with cwm pre-installed.
I swear, it's like people don't read the directions properly anymore.
goodintentions said:
Hahaaha, and for the record, my start here page code double red takes care of your problem. Not only that, I've also provided nvflash files with cwm pre-installed.
I swear, it's like people don't read the directions properly anymore.
Click to expand...
Click to collapse
Hey goodintentions, I know you have good intentions , but I have been working with gtablet mods for quite some time now. Usually when you have a bricked gtablet, you are desperately looking for a solution. That's why I hopped from Vegan to Cyanogen to stock etc within an hour or so. And when you have been working on things for some time, you tend to not look at anything that says "start here". Honestly I had never seen your page before, which by the way is pretty good and would have been a life saver if I had known it.
I wonder... what should I name the page as?
I promise you, my instructions work for 99% of the problems people encounter.
goodintentions said:
I promise you, my instructions work for 99% of the problems people encounter.
Click to expand...
Click to collapse
I have no doubt.

[Q] How to completely wipe phone?

I've made a few mistakes when trying to install the latest cyanogen Nightly to my SGS2.
I initially tried the ROM Manager method of flashing to Cyanogen but only managed to get myself stuck in only being able to boot into ClockWork Mod Recovery mode so I ended up having to use Odin to re-flash with Stock Mod (had to guess which stock rom I needed as I hadn't looked it up before heh) and when that completed my phone booted up ok and all my apps were there but the screen was strangely washed out in appearance. Not sure if the o2 UK rom that came with the phone had some tweaks to make the colours richer or something - I checked the display settings and it was at the setting I'd chosen previously.
Anyway, I re-tried using the Recovery mode instructions and now my phone is stuck at the boot screen and has been for 20 minutes. I'm aware the first boot after cyanogen is installed is meant to be longer (while it dexopts or something like that) but 20 minutes seems a trifle tardy so I suspect it's gone tits up again.
Oh well.
Onto my question:
I want to flash with the correct o2 UK version of the SGS2 rom whilst completely wiping everything from my phone including system internal sd and external sd.
Is this possible and how?
try this procedure provided by ithehappy.
Wipe Cache+ Factory Reset should work.
Anyway, try this in keypad,
*2767*3855#
Thanks for the help

stuck on cyangenmod logo

So I have had Cyangenmod 10 installed for several months now and it's been working fine until I would say the last 2 weeks. Now, sometimes it will lock up or slow down and when I restart it, it will get stuck on the cyangenmod logo and never fully boot. After several restarts, I can sometimes get in and all is fine. But today, I have rebooted the Nook Tablet about 10 times now and the Cyangenmod logo will spin for a bit, then stop and then spin and then stop, etc but I can never get in
Ideally, I don't want to restore as I have a number of things on the Tablet that I want to keep. Any suggestions before going that route?
Try going into recovery and wiping cache and dalvik-cache, and then reboot. When oddball things happen, this should be your first trouble shooting step.
Good luck
Sent with my Dinc4G
tried the wipes and still gets stuck on the cyangenmod logo..just spins and stops for a bit, then spins some more
any other ideas
Titanium backup the apps/data you want to keep then full wipe - data/factory reset.
Sent with my Dinc4G
can't do titanium backup if I cant even get passed the cyangenmod logo
Ya good point.
You may have to reflash the rom (or another rom) after a full wipe. I know you are trying to avoid this, but you may not have a choice. You should, however be able to restore your data through advance restore in recovery (make sure you do a backup first though). And it is possible something you put on your nt is causing this - not likely but possible.
Had you done any mods or such on you nt prior to this?
Edit - Another thought too, try flashing the latest update of cm10.1, Just wipe cache and dalvik cache. Flash over the top your current build.
Good luck
Sent with my Dinc4G

AOSP soft bricks my S5??

I've looked all over for answers on this. I hope I didn't miss something, but here is my issue:
After being fed up with Touchwiz, I tried flashing AOSP ROMs instead. Ever since then, every AOSP ROM I flash will freeze during boot (usually it freezes after 15-20 seconds), I'll see a glitched image for 10 seconds, and then reboot. This bootloop has happened with AICP, Resurrection Remix, and a few others. I'm about to try CyanogenMod, but I assume that will fail as well since the others were mostly based off CM. I always wipe data, cache, and dalvik before flashing (sometimes system too, and now internal storage to try to fix this issue).
Can anyone figure this out?
I have very limited access to a PC and my Mac refuses to recognize this phone in download mode, so Odin isn't readily available and Heimdall has been no good so far.
G900TUVS1FOL1
EDIT: Apparently EVERYTHING is bootlooping this phone. I flashed other Touchwiz-based ROM's and those aren't working. Finally I returned to stock firmware using Kies, and I'm STILL stuck in an endless loop.
I NEED HELP. SERIOUSLY.
This is probably a bad idea, but I'm headed to T-Mobile to try and get help. I can't afford to wait.
t3st4m3nt said:
This is probably a bad idea, but I'm headed to T-Mobile to try and get help. I can't afford to wait.
Click to expand...
Click to collapse
in twrp you need to format data partion and wipe internal storage cache,data, and davilk cache
then use kies for emergency restore
malbert16442 said:
in twrp you need to format data partion and wipe internal storage cache,data, and davilk cache
then use kies for emergency restore
Click to expand...
Click to collapse
Honestly, I feel like I should've just stuck with your ROMs
I've done all of the above, and I do so every time I flash a ROM. I tried re-flashing after wiping system, no good. And the restore from Kies failed to fix the issue.
Kies removed twrp, so I was able to take it to a Samsung Center at Best Buy without the device drawing suspicion of having been rooted (they ignore Knox at this one), and they failed to solve the issue with a home reset. Right now they have no idea what is happening, and neither do I.

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