Develop Bugs

Possible NAND issue?

Team Vanir Jellybean v2-7, Galaxy Nexus Verizon
Last week i was having issues with the phone not booting, or just locking up not responding etc. A wipe seemed to help, and wit work for a while. I'd get my phone setup to where I wanted it again, and then the issues would come back.
I found a post that said it was possible EXT4 formatting issues because of a bad poweroff. So I downloaded all the stock 4.04 images, fastboot erased system boot recovery. Flashed the latest radios, stock system boot userdata and clockwork recovery 5.5.0.4. Booted seemed to be fine.
Rebooted into Clockwork and installed Vanir v7, ran fine for a few days. I thought the issue was gone. Until this morning when I got a text message and went to unlock the phone and it was locked up. I pulled the battery and that is when everything got extremely bad
Would not boot past the boot animation. I tried the following
I reinstalled the ROM,
i treid to wipe data,
wiped data and reinstalled the ROM.
although I was able to make a nandroid backup before I tried all of this
Then as a last resort I went into the mounts and storage and FORMATTED /system /data and /cache in CWM. Reinstalled the ROM and it actually booted.
What greeted me there is the last thing I'd EVER expect to see. I don't know how, what or why but all my data was there... every app text missed call... all of it.. even tho I had wiped AND formatted several times and did NOT restore my backup. EDIT: Even more oddness... My user apps didn't get wiped, they are all still there, but they are all acting like I had cleared their data through the applications menu....
I still don't know if this is because of a NAND issue that formatting fixed both times (flashing stock and using format in CWM) or if it will ever come back. Has any1 else had any issues of this sort? I really don't think this is a ROM issue.

you're probably causing more damage by flashing this, wiping this and that. best option is to leave it stock for now by flashing the factory image again. if it is a NAND issue then it would have stopped booting when the issue occured. but if it is still causing problems then send it back for a replacement.

[Q] Reboot issue on 4.3 roms

Here is my problem on 4.3 roms, i have no trouble installing them and the load up perfectly but after i do a restart i cant get past the boot screen. It does it on all 4.3 roms, i have the latest twrp recovery latest modem and stuff everything is up to date only have this problem on 4.3 ive formatted the internal storage numerous times and always followed op instructions. i cant find anyone else with this problem any help is appreciated tia

The only time I had this issue was after I changed font in Rom Toolbox. How are you wiping?
sent from my GS3 running Illusion4.3

joeyhdownsouth said:
The only time I had this issue was after I changed font in Rom Toolbox. How are you wiping?
sent from my GS3 running Illusion4.3
Click to expand...
Click to collapse
im using twrp first i tried to factory reset, caches that didnt work i formated internal storage same problem everything works great untill i restart the phone then wont go past boot screen. like its not reading the internal drive even did fix permisions and wiped caches after install. Also i used the updated su to flash after still problems, beyond me no problems with older ones or tw just the 4.3 roms

I, also, am having this very same issue. I'm honestly surprised that noone else seems to have run across this issue.
Installing is never an issue, running is never a problem, but if I ever reboot, if a ROM reboots itself, I'm left stuck at the GalaxyS4 splash screen, and the only way out it to Wipe everything and reinstall.
I see youre posting from an S3, I am using an AT&T S4.
Clearly, the issue is related to 4.3...

I had that problem with an unofficial build. But that was a bad download. Do you have new phones? The mount points are different on the newer sg3's. There's a thread with a fix for that

i had that problem. for some reason it locks your recovery and internal storage. you have to wipe it and install a rom via odin to work again. thats why im staying away from 4.3

i got my phone last december so its not real new, guess Ill just stay away from 4.3 roms. my recovery never got locked it just wont boot back up after restart. thanks for all the ideas

Galaxy Note 10.1 SM-P600 Reboot Loop

Hi All,
Having some issues with my Galaxy Note 10.1 which I've had for quite a while now. It's rooted but with Android 5.0 stock rom and a custom kernel.
Just now (like 20mins ago) I tried to enable Adblock plus app, the app said it can't automatically change the settings - even though SuperSU was installed and had no issues with it previously. So like all things thought I'd give it a reboot that ought to clear it out. That didn't work, so tried clearing cache (Dalvik/ART/Cache), Still no joy.
I'm a s/w engineer, but not and android/bootloader expert, so I've tried to grab the dmesg and boot logs which I've attached, I've got some stuff on the internal SD (app data) which I'd like to keep, hence I'm not going for the full wipe.
Please take a look at the logs and see if you can determine how to fix this issue, my initial thoughts were there are some issues with the flash storage (bad sectors/partition table?), if I could grab the image and dd the image again I'd be OK - but I don't know much about about android boot loader/kernel etc so can't say.

Ok it has been fixed by wiping data - but I've lost my data and installed apps!
Is there anyway to find out which file/app is causing the boot loop so I can restore data, delete the offending file?

Well, I shall give a bump to this topic, with a little more info. Though probably not really useful.
First I had stock 5.1.1 deodex pre root etc ROM that, after I tried to insert a nano sim card (mine is a 601 3G model) that got stuck, it entered on a bootloop, I had to open it, take the sim card out, and it was still on a boot loop. Tried to install another image, still bootloop, tried to reinstall the original one I had, still bootloop, wiped data, worked fine.
Then almost 2 weeks later, everything worked fine, went to watch a video, the sound was mute, tried to turn it on but everything looked fine, decided to restart because it would probably fix the problem. Got a bootloop. Wiped the data, everything was fine again.
Now, a little more than 2 weeks later, seems like the wifi is not working, thought all my other devices are, guess it's the same problem, decided to restart it, and bootloop again. I'm currently trying to update my TWRP, and gonna try a different ROM, and wait to see if something like that happens, until then, I wonder what could be happening... I remembered an Asus Device that I had that had different firmware versions for 4.4 and 4.1, so if I tried to flash a 4.4 on a 4.1 firmware it wouldn't work, and for downgrade, the same problem happened, and wondered if Samsung has some difference between versions 4 and 5.

ssj4maiko Let me know if you find a more stable rom - I went back to pretty much stock, but with root as I wanted to use all the Samsung apps, but this constant random bootloops are annoying!

LG G3 with cm-13.0-20161002-NIGHTLY-d850. Issues faced, guidance required.

New to the world of Custom ROMs. A week ago I installed CM 13 which took great courage on my part and wanted to share my experience, issues and discuss possible solutions.
My phone had the latest lollipop on it. And McCafee locked. The steps that worked for me where
1) Did a factory reset and bumped into mccafee.
2) Tried download mode but kill switch was enabled.
3) Rebooted the phone to face mccafee, tried 123465 pin which worked.
4) Disengaged McCafee but not before transferring ownership to my email.
5) Tried rooting didnt work with any method.
6) Rolled back to d software version stock lollipop.
7) Rooted with PurpleDrake
8) Replaced with CM recovery didnt work.
9) Replaced with TWRP and rebooted directly to recovery
10) Installed CM and gapps mini. Worked fine. Voila!
Issues:
1) No Custom recovery sticks, whenever I flash with a custom recovery like TWRP or Clockwork. I have to reboot into recovery immediately or the custom recovery is replaced by stock. It happens on every second reboot.
My concern is here if I get stuck into bootloop and dont have a custom recovery I might not have any other option than the stock ROM which does a full reset. How can make TWRP stick forever?
2) After installation of Custom ROM there have been random reboots, I suspect there is something here with phone app or voice. So far the reboots have been when I try to call using fb messenger, appear.in and phone app itself.
Is there a guide that tells me how to track this down?
Can I install a newer Nightly and hope this get fixed?
How can I retain my apps and data when installing a newer nightly? since all guides ask to wipe everything :S
I have a backup of system and data partitions, can I use that with other ROMs.
What ROMs have a better chance of fixing this issue?
Coudnt find Stock M for D850. Why arent those available?
Should an Official ROM be more reliable than CM for this?
3) Bad signal reception so far. It may be a generic g3 issue.
Can I hope that this issue be fixed with a different ROM or updates from Cynogen?
Someone said you may have to flash the radio partition. My question is where can I get a brief understanding of what partitions there are in android and which are risky. Which ones can be replaced, backedup and replaced back.
4) Whenever the phone reboots, it gets stuck into bootloop unless I remove the SIM card. Then I power off and install SIM Card and reboot and it boots fine.
I am already tracking CM changelog for something important. Cant post urls as of now :S

Question Random reboot +- corrupted boot image?

Hello, recently I got the poco f3 (256-8gB) and I have experienced a really weird behavior (I know about random reboots other peooke expperience, but please read what happened to me)
I rooted it with magisk (patching boot image using latest stable apk from official github).
I added smali oatchee module to it.
At some point miui auto-updated to 12.5.1.0 RKHEUXM, I had to get boot image from the update, extract from payload and reparch to get magisk back.
After this I noticed the phone rebooted randomly, it happened like once in 2-3 days, son nothing really anoying, I didn't pay much atention to it since the phone worked flawlessy for everything else. Then I tried to connect to a router wifi (router setup with openwrt) and I noticed EVERY TIME I tried to connect to that specific wifi the phone rebooted. I tried to reconfigure the wifi network but it still happened. No problem with other devices.
Then the next day, I openwd an app which had embedded adds (an app I have been using for a long time, the very same version). 1 second into the add the phone rebooted...and it became stuck in a bootloop in MIUI logo. I couldn't even power off the phone, I could enter recovery/fastboot though.
I used twrp to wipe it without erasing my data, but problem still persisted. Only reflashing boot image (I used stock version) revived my device. I tried to boot it without flashing, phone seemes to boot but with no display.
So I decided to make a full wipe, then reinstall magisk. Phone has been working fine since then, but the occasional random reboot still happens and I'm afraid eqch time my poco f3 will be stuck in bootloop again.
My conclusion is somehow boot image got coreupted, but I can't think of anything I could have done for that to happen, as I only had magisk set up, I didn't even use any app with root permisions yet. Any ideas why that my have happened?
I'm thinking of flashing twrp to recovery so I can reflash boot image from it in case this hapens again...

You mentioned your device rebooted when it connects to a specific WiFi network. Can you get logs for connecting to the network?

I do not use magisk, but I read this thread a lot lol, so as I see the simpler way to root ur phone is to boot to TWRP (fastboot boot xxxx.img) and install magisk from Advanced settings. As I know, there is even an option that allow u to keep ur root after an rom update. U can give it a try, maybe it will solve ur random reboot problem.

Robert314 said:
You mentioned your device rebooted when it connects to a specific WiFi network. Can you get logs for connecting to the network?
Click to expand...
Click to collapse
How may I get those logs?
Alin45 said:
I do not use magisk, but I read this thread a lot lol, so as I see the simpler way to root ur phone is to boot to TWRP (fastboot boot xxxx.img) and install magisk from Advanced settings. As I know, there is even an option that allow u to keep ur root after an rom update. U can give it a try, maybe it will solve ur random reboot problem.
Click to expand...
Click to collapse
My phone is already rooted via magisk patching the roms's boot.img, then flashing via fastboot. That's the recommended method for this device afaik.

Try clean flash. Backup all your stuff that you want to keep. Format data in TWRP before booting into system.
OTA auto-update from time to time causes issues.

I tried again and the revoot when connecting to that certain wifi network persists.
Is there anyway I can reflash my current firmware without having to wipe? Can I jast flash my current update with twrp with no data loss? (Basically what happens when a system update is out...)

Just posting to note that update 12.5.3.0.RKHEUXM solved all those random reboots for me.
They were also happenning when trying to share image/links/anything via bluetooth, telegram....only thing that worked without reboot was "copy link" in the share button.