Hello guys!
My phone is stuck in bootloop (Samsung animation and a few vibrations every 10 secs).
This happend after I uninstalled a battery stats helper app (rootuninstaller.bshelper) installed in the /system partition. I believe it messed up some files in /system :silly:
I would like to recover the phone without losing the app data, if possible. What are my options?
I have OS 6.0.1 with SuperSU root and stock recovery.
I can connect with ADB but I don't have the keys, so I'm locked out.
Should I flash the stock ROM with Odin? Will it delete the /data partition?
Or will it overwrite just /system?
Thanks!
aand16 said:
Hello guys!
My phone is stuck in bootloop (Samsung animation and a few vibrations every 10 secs).
This happend after I uninstalled a battery stats helper app (rootuninstaller.bshelper) installed in the /system partition. I believe it messed up some files in /system :silly:
I would like to recover the phone without losing the app data, if possible. What are my options?
I have OS 6.0.1 with SuperSU root and stock recovery.
I can connect with ADB but I don't have the keys, so I'm locked out.
Should I flash the stock ROM with Odin? Will it delete the /data partition?
Or will it overwrite just /system?
Thanks!
Click to expand...
Click to collapse
I would first try with flash TWRP and wipe cache/dalvik from there, before flashing anything else.
Related
Hello. I tried doing the 5.0 update to my tablet using the factory images. It failed on sending /system and now the whole tablet isn't working. I loaded Philz, to wipe the whole tablet, and it errors mounting /data and /system when attempting to wipe. I have tried wiping everything in every way, and nothing. I cannot get anything to flash on the tablet. Any help?
Yoyodude1124 said:
Hello. I tried doing the 5.0 update to my tablet using the factory images. It failed on sending /system and now the whole tablet isn't working. I loaded Philz, to wipe the whole tablet, and it errors mounting /data and /system when attempting to wipe. I have tried wiping everything in every way, and nothing. I cannot get anything to flash on the tablet. Any help?
Click to expand...
Click to collapse
Ya man, its the same with me . Hope someone, reply's with a solution for it.
Maybe try with latrst version of twrp instead of Philz.
Flash TWRP
Wipe
Advanced wipe
Select system
Repair or change file system
Repair
Let it do its thing, then flash your ROM.
Send your thanks to @Paramesh96. He gave me this advice on my thread. Still haven't been able to flash factory images. But I can get my tablet up & running again with this guide
I could do this, but I have no way of moving a zip file to the tablet.
Yoyodude1124 said:
I could do this, but I have no way of moving a zip file to the tablet.
Click to expand...
Click to collapse
I flashed TWRP, went through the process, rebooted to bootloader, reflashed TWRP, reboot to recovery & mtp was enabled to access the sdcard
Phone is working, I suppose doing his job in the process. The problem is that I am waiting already 20 minutes. I am afraid of getting CPU burnt (it is at 51 grades of Celsius).
I have read about the issue and about also the solution [enabling rm -rf in the twrp settings]... But now I am in the process, so not sure if I should shut the phone down or not..
Did you do a factory reset or advanced wipe?
I used advanced wipe, I got really angry with formatting so I removed the battery ... but now I have a problem: failed to mount system... I installed the twrp through odin... And before that I did not do anything, do I have to unlock bootloader or something like that?
binuralka said:
I used advanced wipe, I got really angry with formatting so I removed the battery ... but now I have a problem: failed to mount system... I installed the twrp through odin... And before that I did not do anything, do I have to unlock bootloader or something like that?
Click to expand...
Click to collapse
No. Your bootloader is already unlocked, otherwise it wouldn't have let you flash TWRP.
Have you tried factory reset? Or mounting system manually?
You can also try to mount system by using TWRP's built-in terminal emulator.
Now I flashed 4.4.2 with and Odin, phone was ok. Then I flashed latest twrp and now the system was mounted. I did a backup and wiped all again with advanced wipe. Then I tried to install ROM but it fell again to a error 7 - system not mounted. How can I mount it manually? what command is that?
binuralka said:
Now I flashed 4.4.2 with and Odin, phone was ok. Then I flashed latest twrp and now the system was mounted. I did a backup and wiped all again with advanced wipe. Then I tried to install ROM but it fell again to a error 7 - system not mounted. How can I mount it manually? what command is that?
Click to expand...
Click to collapse
Error 7 means the ROM is not compatible with your model.
Have you tried different version of twrp?
That was a really terrible testing day... I tried every twrp till version 2.8.6 that worked after odin flashing. I managed to mount system and do all wipes. I flashed ROM and gapps, everything went smoothly... But the thing was that the phone started to shut down by itself. Without a message, simply black screen and restart and bootloop after samsung logo. I decided to load 4.4.2 stock with repartitioning (pit file)... 10 hours ok and then again shutting down by itself.
Have you experienced this kind of behaviour?
hi guys,
please i have some questions i really need there answers:
1- (rooted phone) if i do a factory data reset will the root gone and the TWRP also ?
2- (rooted phone) is there a way to install an update if i got it ( like update security patches "monthly" ) on rooted phone without wipe data or loosing the root or TWRP?
3- (rooted phone) if i reinstall the factory image full,the root and TWRP will have gone or not ?
thanks a lot !
1. If you use systemless root a factory reset will remove it. If you use a root method that modifies the system partition a factory reset won't remove root. Factory resets will not remove TWRP.
2. Installing monthly security updates and keeping TWRP, root, and data can be done by manually installing the update using fastboot and doing the following:
-Systemless root method: flash everything EXCEPT the recovery, boot, and userdata images.
-System based root method: install everything EXCEPT the recovery and userdata images. You will have to reflash Superuser/SuperSU (whichever you prefer) in TWRP since flashing the system image will remove root. There's no way around this.
3. If you use fastboot to install everything included in a factory image you will lose root, data, and TWRP.
Face_Plant said:
1. If you use systemless root a factory reset will remove it. If you use a root method that modifies the system partition a factory reset won't remove root. Factory resets will not remove TWRP.
2. Installing monthly security updates and keeping TWRP, root, and data can be done by manually installing the update using fastboot and doing the following:
-Systemless root method: flash everything EXCEPT the recovery, boot, and userdata images.
-System based root method: install everything EXCEPT the recovery and userdata images. You will have to reflash Superuser/SuperSU (whichever you prefer) in TWRP since flashing the system image will remove root. There's no way around this.
3. If you use fastboot to install everything included in a factory image you will lose root, data, and TWRP.
Click to expand...
Click to collapse
Could you explain me what are the difference between systemless root method and system based root method, in order to get know what is it the method that I used
Chouiyekh said:
Could you explain me what are the difference between systemless root method and system based root method, in order to get know what is it the method that I used
Click to expand...
Click to collapse
If you are running Marshmallow or Nouget and used a version of SuperSU that is a year or less old it does system less root by default.
You can flash OTA updates on a rooted device with FlashFire without using a computer.
You can also flash an OTA image in TWRP and then simply flash root after, before you boot the phone. If the phone boots without root, out will wipe TWRP and leave you with stock recovery.
But honestly, from the questions being asked, you might not want to try this stuff until you understand it better. Losing root and TWRP is not a big deal. You can flash them again in about 1min and 30 seconds, so it's not worth worrying about.
Sent from my Nexus 6P using Tapatalk
Why would factory reset remove systemless root? I expect factory reset to only reset what you're supposed to have changed since factory image. That is /data.
Systemless must be in /data if it's not in /system, right? I don't really know much about systemless, because I don't use Android pay, Snapchat or play children's games haha.
But my guess is that if it's not touching system, then it must be in data, so wiping data would remove it. But I'm just guessing.
Sent from my Nexus 6P using Tapatalk
HikingMoose said:
You can also flash an OTA image in TWRP and then simply flash root after, before you boot the phone. If the phone boots without root, out will wipe TWRP and leave you with stock recovery.
But honestly, from the questions being asked, you might not want to try this stuff until you understand it better. Losing root and TWRP is not a big deal. You can flash them again in about 1min and 30 seconds, so it's not worth worrying about.
Sent from my Nexus 6P using Tapatalk
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Click to collapse
thank you, i got it easily because i'm not a beginner i have some experience
HikingMoose said:
Systemless must be in /data if it's not in /system, right?
But my guess is that if it's not touching system, then it must be in data, so wiping data would remove it. But I'm just guessing.
Click to expand...
Click to collapse
You guessed right. Never thought of that, thought it was actually all done from boot partition.
Quoting Chainfire:
As the binaries should still be updatable, and we don't know the space we have available in the boot image itself, we're mounting a (writable) ext4 image with /su as mount point from /data, and modifying PATH accordingly. Interestingly, for reasons yet unknown to me, if the image is mounted r/o by init, later remounting it r/w causes a bunch of issues. So we're keeping it r/w (for root) for now.
Hi guys, I need your help.
I have a Samsung Galaxy Tab A SM-T550 and I wanted to wipe its content. The tablet was rooted, and it had TWRP as recovery.
I rebooted to recovery and wiped System (probably the guilty), Data, Cache and Dalvik with TWRP, then I pressed "reboot" and it told me "no os installed".
So I tried to flash a custom rom, the JazzROM, but still it's stucked at the logo screen (it restarts itself after 10/15 minutes and then again stucked).
What can I do to solve?
I'm able to access to TWRP.
Thanks!
Ornstein said:
Hi guys, I need your help.
I have a Samsung Galaxy Tab A SM-T550 and I wanted to wipe its content. The tablet was rooted, and it had TWRP as recovery.
I rebooted to recovery and wiped System (probably the guilty), Data, Cache and Dalvik with TWRP, then I pressed "reboot" and it told me "no os installed".
So I tried to flash a custom rom, the JazzROM, but still it's stucked at the logo screen (it restarts itself after 10/15 minutes and then again stucked).
What can I do to solve?
I'm able to access to TWRP.
Thanks!
Click to expand...
Click to collapse
Download and install the stock firmware.
I suggest in future you use TWRP for its intended purpose. Make a full device backup prior to modifying anything.
ashyx said:
Download and install the stock firmware.
I suggest in future you use TWRP for its intended purpose. Make a full device backup prior to modifying anything.
Click to expand...
Click to collapse
Thanks ashyx, I have flashed the one that I found on Sammobile, and now it's working
And yes, you're right about the backup, I forgot to do it
Hey folks. I'm hitting a brick wall trying to figure out this issue and I'm hoping someone will know how to fix this.
I have a Galaxy Tab A 8 (SM-T350) that I rooted and successfully flashed with first crDroid, then Lineage (both Android 9.0) using TWRP. I had made a backup before attempting this just in case I wanted to revert to stock.
Well, that didn't go as smoothly as I was hoping. Ever since trying to restore my backup, I've been stuck on a continuous boot loop that I can't seem to fix.
I keep getting "E:failed to mount /efs (Invalid argument)" and "dm-verity verification failed. . ." no matter what I try. I've googled the error and tried every solution suggested but I still can't get it to boot.
Any help at all would be greatly appreciated. Thanks.
skorpien said:
Hey folks. I'm hitting a brick wall trying to figure out this issue and I'm hoping someone will know how to fix this.
I have a Galaxy Tab A 8 (SM-T350) that I rooted and successfully flashed with first crDroid, then Lineage (both Android 9.0) using TWRP. I had made a backup before attempting this just in case I wanted to revert to stock.
Well, that didn't go as smoothly as I was hoping. Ever since trying to restore my backup, I've been stuck on a continuous boot loop that I can't seem to fix.
I keep getting "E:failed to mount /efs (Invalid argument)" and "dm-verity verification failed. . ." no matter what I try. I've googled the error and tried every solution suggested but I still can't get it to boot.
Any help at all would be greatly appreciated. Thanks.
Click to expand...
Click to collapse
Ignore the EFS error its probably a red herring. Your issue is dm-verity.
3 ways around it. Return to complete stock, including wiping the data partition or flash root (magisk suggested) or disable dmverity using one of the zips out there.
ashyx said:
Ignore the EFS error its probably a red herring. Your issue is dm-verity.
3 ways around it. Return to complete stock, including wiping the data partition or flash root (magisk suggested) or disable dmverity using one of the zips out there.
Click to expand...
Click to collapse
Thanks for the reply ashyx.
I've done two of the three things you suggested. I've tried returning it to stock using an image matching my exact model, and I've tried disabling dmverity. I've also tried rooting it but using a method other than magisk.
The flash seems to go well enough, but then I get stuck at the Samsung logo whenever I try rebooting into the system.
I've tried waiting, thinking I'm just being impatient, but it doesn't ever seem to get past the logo. I've tried googling ways to fix it being stuck on the logo but nothing I do seems to work. Is there any other way around it?
Side note: I've been able to flash Lineage OS again and might just have to stick with that if I can't flash it back to stock. Do you know any resources for replacing the default apps? I've tried GApps but I was wondering if there's a similar Samsung installer?
skorpien said:
Thanks for the reply ashyx.
I've done two of the three things you suggested. I've tried returning it to stock using an image matching my exact model, and I've tried disabling dmverity. I've also tried rooting it but using a method other than magisk.
The flash seems to go well enough, but then I get stuck at the Samsung logo whenever I try rebooting into the system.
I've tried waiting, thinking I'm just being impatient, but it doesn't ever seem to get past the logo. I've tried googling ways to fix it being stuck on the logo but nothing I do seems to work. Is there any other way around it?
Side note: I've been able to flash Lineage OS again and might just have to stick with that if I can't flash it back to stock. Do you know any resources for replacing the default apps? I've tried GApps but I was wondering if there's a similar Samsung installer?
Click to expand...
Click to collapse
You need to wipe the data partition, aka factory reset before or after installing the stock firmware then it will take anything up to 15 mins to boot.
ashyx said:
You need to wipe the data partition, aka factory reset before or after installing the stock firmware then it will take anything up to 15 mins to boot.
Click to expand...
Click to collapse
I've tried leaving it for a few hours in hopes that it would boot, but unfortunately it stays stuck on the logo.
Is there a way to check where or why it's getting hung up?
skorpien said:
I've tried leaving it for a few hours in hopes that it would boot, but unfortunately it stays stuck on the logo.
Is there a way to check where or why it's getting hung up?
Click to expand...
Click to collapse
Did you back up the efs partition with twrp?
If so try restoring it.
ashyx said:
Did you back up the efs partition with twrp?
If so try restoring it.
Click to expand...
Click to collapse
I did and I have been restoring it.
So far, this is what I've attempted:
Flash TWRP (twrp_3.1.0-1_sm-t350_18317.tar using Odin3 v3.10)
Reboot into recovery
Wipe everything from tablet
Format tablet
Reboot into download mode
Flash stock image with Odin
Reboot into recovery
Wipe dalvik cache
Restore backup (including efs partition)
Wipe dalvik cache (again)
Reboot
Get stuck on Samsung logo (left it for hours with no change)
skorpien said:
I did and I have been restoring it.
So far, this is what I've attempted:
Flash TWRP (twrp_3.1.0-1_sm-t350_18317.tar using Odin3 v3.10)
Reboot into recovery
Wipe everything from tablet
Format tablet
Reboot into download mode
Flash stock image with Odin
Reboot into recovery
Wipe dalvik cache
Restore backup (including efs partition)
Wipe dalvik cache (again)
Reboot
Get stuck on Samsung logo (left it for hours with no change)
Click to expand...
Click to collapse
Don't restore everything just EFS No need to keep wiping dalvik it serves no purpose when formatting or wiping the data partition.
Also FORMAT not wipe the data partition (note this wipes internal storage)
If it still doesn't boot install the combo firmware. Let it boot, factory reset from settings then reboot to download mode and install the stock firmware again.