S6 suddenly lost root, can't root back - Galaxy S6 Q&A, Help & Troubleshooting

Today AFWall informed me that it couldn't get root access to change firewall settings. That was very strange because I rooted the phone and everything worked fine. I didnot flash or update or anything else with the phone. Supersu says there is no su binary and it can't install it, so there is nothing I can do.
I use cf-Autoroot to root. I just flashed it again, no success. I flashed the stock firmware back G920FXXS3DPDA_G920FDBT3DPC4_G920FXXU3DPCA_HOME.tar and then my cf Autoroot file I gained root a few weeks ago. Again no success. There is no error message or anything like that. Flashing and rooting goes on normaly. However there is no root access after rebooting.
I used Galaxy S, S3 and S4 with root. I've never had that root suddenly went away.
Whats going on here? How can I get back root?
Thanks for help.

@SamsungPisser I have no idea what's going on with your phone but use Odin and install TWRP recovery http://arter97.com/browse/exynos7420/recovery/twrp/g920fi/ (download the tar file) After you have installed recovery download supersu 2.68 https://download.chainfire.eu/924/SuperSU and flash in TWRP.Wipe dalvik cache and reboot. Then you should have root ?
Sent from my SM-G920F using XDA-Developers mobile app

I have SM-G920F (DBT, German), can I use the fi version you provided?
I know I even tried to get TWRP on my phone working. It just said "recovery is not SE enforcing" and stuck there. With CF-Autoroot I could go back to a working recovery.

SamsungPisser said:
I have SM-G920F (DBT, German), can I use the fi version you provided?
I know I even tried to get TWRP on my phone working. It just said "recovery is not SE enforcing" and stuck there. With CF-Autoroot I could go back to a working recovery.
Click to expand...
Click to collapse
Yes you can use fi version. Hope it works ☺
Sent from my SM-G920F using XDA-Developers mobile app

TWRP works so far. However problem seems to be, that I have encrypted and so /data can't be mounted.
In addition I have no option to decrypt. So I need a possibility to root with encryption enabled.

SamsungPisser said:
TWRP works so far. However problem seems to be, that I have encrypted and so /data can't be mounted.
In addition I have no option to decrypt. So I need a possibility to root with encryption enabled.
Click to expand...
Click to collapse
I don't think it's possible but if I were you I would do a factory reset and then flash supersu in TWRP ?

I did a factory reset, encrypted and then rooted. If I root first, no encryption is possible, it simply doesn't start.
However I don't understand. With encrypted device I can root without problems, so why my root was gone and wasn't possible to get back.
Helium backup disappointed me much. I selected every App. Some apps weren't backuped (like Tinder, Swiftkey, JuiceSSH and some more) and even SMS and Callog are now gone because Helium wasn't able to backup. Never had such problems with Titanium Backup.

Related

[Q] Odin3: checkboxes are disabled

Hi there,
I got a brand new Galaxy Note 10.1 this weekend and tried to get my hands dirty on rooting it just yesterday. So I got Odin3, CWM and SuperSU, installed Samsung Kies and thought I were good to go. Unfortunately, after doing what some guides tell me to do, I'm still on official device status.
Before I go into detail: I had to manually edit the Odin3 INI file to force the device NOT to auto reboot after flashing the CWM - the checkboxes in Odin3 were disabled and greyed out. Can someone explain why and if that might be the cause of my problems?
HoPi` said:
Hi there,
I got a brand new Galaxy Note 10.1 this weekend and tried to get my hands dirty on rooting it just yesterday. So I got Odin3, CWM and SuperSU, installed Samsung Kies and thought I were good to go. Unfortunately, after doing what some guides tell me to do, I'm still on official device status.
Before I go into detail: I had to manually edit the Odin3 INI file to force the device NOT to auto reboot after flashing the CWM - the checkboxes in Odin3 were disabled and greyed out. Can someone explain why and if that might be the cause of my problems?
Click to expand...
Click to collapse
Download a clean copy of Odin and install .
Auto Reboot is normal .
Root and Recovery TWRP
http://forum.xda-developers.com/showthread.php?t=1851548
Root and Recovery CWM
http://forum.xda-developers.com/showthread.php?t=1831173
jje
Thanks, but that didn't help either. Auto-Rebooting brings me back to stock, device state official. I tried to install CWM-SuperSU-v0.99.zip manually via CWM, but a reboot later it's still "official" and apps that need root access either run forever ("checking...") or freeze the tablet. But since this is getting off topic, I might be better off asking in other threads.
Thanks anyway!
HoPi` said:
Thanks, but that didn't help either. Auto-Rebooting brings me back to stock, device state official. I tried to install CWM-SuperSU-v0.99.zip manually via CWM, but a reboot later it's still "official" and apps that need root access either run forever ("checking...") or freeze the tablet.
Click to expand...
Click to collapse
Then you are not understanding instructions .
What is your intention .
Root or flash a stock rom .
Root via either method i posted .
Stock rom direct flash tar file via Odin.
ODIN flash is a tar not a zip.
Custom rom via a rooted phone with recovery zip file from ext sd card or sd card .
jje
Come on, the instructions are pretty clear boot in Odin Mode, click a button in Odin, let it restart, finished. The SuperSU zip file is from another guide, where the tar-file didn't include it. So I tried to manually install it via CWM (I think it was 6.0.2.7 or 8), but that didn't work either. Whenever the device reboots, Root Checker Basic runs for a few minutes and says "Sorry, the device does not have proper root access". If it helps, I used this guide:
http://www.android-hilfe.de/root-cu...ly-root-fuer-anfaenger-n8000-n8010-n8020.html
Even though it's in german, the screenshots are pretty obvious.
Sorry never ever seen any method with those sort of instructions.Personally not a clue what they mean .
I have used two methods as posted to root note 4 or 5 times. Rooted standard Samsung phones with cwm and root hundreds of times without any of those instructions.
Even run one standard cwm root via Odin to allow a specific rom install followed by a reroot using TWRP this afternoon .
jje
Sent from my GT-N8010 using xda premium
Thanks to Darkman, I finally got it. The problem was the current firmware update from Samsung. I reflashed with the version from January, followed his tutorial (like I did before - wow, after doing this 3-4 times, it certainly becomes second nature), and BAM, the device is rooted. Thanks anyway JJegan

Issues with TWRP 920T Model

Hi,
I have a 920T with 5.0.2 android version and I'm having a hell of a time installing TWRP. I root fine verified root and the whole thing is beautiful. Every root app I try says im rooted, titanium backup works fine and super user does as well. So I know i'm rooted correctly.
Now I download TWRP from the market place and set up a recovery, I pick "twrp 2.8.6.0 zeroflte" and go through the steps. Again no problem, says it is set up correctly would you like to go into recovery mode. I say yes and then I get stuck in a boot loop forever, I can't do anything but go into download mode and redo my stock rom which I don't want. My end wish is to get http://forum.xda-developers.com/tmo...ent/rom-xtrestolite-pure-edition-1-0-t3088032 that on my phone as I'd love to bypass selinux which I can't on a stock rom.
I should note I also tried installing TWRP through odin and that boot loopd my phone as well. Am I missing something here? Wrong step? wrong app? wrong something?
bump bump

Rooting My 920T

Hi,
I have a 920T with 5.1.1 android version and I'm having a hell of a time installing TWRP. I root fine verified root and the whole thing is beautiful. Every root app I try says im rooted, titanium backup works fine and super user does as well. So I know i'm rooted correctly.
Now I download TWRP from the market place and set up a recovery, I pick "twrp 2.8.6.0 zeroflte" and go through the steps. Again no problem, says it is set up correctly would you like to go into recovery mode. I say yes and then I get stuck in a boot loop forever, I can't do anything but go into download mode and redo my stock rom which I don't want. My end wish is to get http://forum.xda-developers.com/tmob...n-1-0-t3088032 that on my phone as I'd love to bypass selinux which I can't on a stock rom.
I should note I also tried installing TWRP through odin and that boot loopd my phone as well. Am I missing something here? Wrong step? wrong app? wrong something?
bump bump bump

Installed stock ROM but no data erased.

I own a Samsung Galaxy A5(A500G) and have recently rooted it using the Kingo root app via my PC.After that,I tried to use Flashify app on Google Play store to flash a TWRP recovery.After I installed it,When i restarted my phone, it states 'xxxxxx serodroid not enforcing' or something like that.In the TWRP,I tried to reboot it but it kept pulling back to the TWRP and I could not reboot it to the Android screen.This is not quite bothering me,because I could just flash my Stock ROM(A500GXXU1BPC3_A500GOLC1BPD1_XSP)that I found it on Samobile and I have used it many times to get my soft bricked phone back to normal.The thing is, after I flashed the Stock ROM,IT DID NOT ERASE ANY DATA .Except that i get my back to the unrooted state.Everything is just normal and all my files are intact.I do not know why.Is it just a normal thing,or has it got anything to do with the Kingo Root app?
Please reply.Many thanks.
P.S. I have not installed titanium backup,or a nanodroid backup.
Problem solved,thread closed.

My root is gone but bootloader is still unlocked

Hi all.
Yesterday I noticed a issue while using greenify, it says "Failed to put Facebook,Snapchat into hibernation." I've never experienced this before. So I thought that it could be about root and downloaded root checker.
I run it an it says "Root access is not properly installed on this device." But when I restart in recovery mode it says that bootloader is still unlocked.
And also some strange things happen. App permissions change randomly etc.
I tried a hard reset this morning, but everything is same.
I don't know much about this root thing. My device is second hand, and it had root when I got the phone.
Edit: I'm using stock rom 6.0.1 MOB30P, and stock recovery
Any help will be appreciated. Thanks.
Flash TWRP in fastboot and then flash the latest supersu through TWRP. Could be an issue of how the phone was rooted.
If you want to keep stock recovery, just use fastboot boot TWRP.img to use it temporarily.
An unlocked bootloader has nothing to do with root as you can have one or both.
Thanks for the replies guys.
I've read that doing a factory reset on Marshmallow can cause to lose the root, maybe this caused my problem.
Actually I don't wanna mess with these things because I don't have any experience before. I'm just using Greenify which requires root, but I've got it working by switching the "non-root" mode.
Will it cause an issue using the device at this situation as a normal user?
And just another question about these random permission changes. Could MOB30P build cause this issue? I haven't had a trouble about it before the July update.

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