The SU Binary file is corrupted on my device, from trying to replace it with another. Shortly after replacing the SU file, I was unable to open SuperUser.apk. I reset my phone, hoping this would unroot my device. I was WRONG. My device is now currently rooted, with a corrupted SU file, so i can't even unroot via SuperSU Application. I've also tried terminal commands to remove the SU file, but it needs root access, which i cannot access due to the SU file! HOW CAN I UNROOT MY PHONE , THUS GETTING RID OF /SYSTEM/BIN/SU , SO I CAN SUCCESSFULLY RE-ROOT MY PHONE?
PLEASE LEAVE A SUGGESTION, OR LINK ME TO SOME UNROOTING SOFTWARE, I'M IN DESPERATE NEED OF HELP
Device: Kyocera Rise
Model: C5155
OS: 4.0.4 (ICS)
Kernel: 3.0.8-perf
Build: IML77
Hi All.
Sorry about the noob question, I am not a developer at all, and the only reason I rooted my Galaxy Note N7000 was so that I can update the ROM to the newest version of KitKat once the ROM is stable.
The problem is that last week I flashed the PhilZ-cwm6-XXLT4-OXA-4.93.6-signed file to the phone and it rooted successfully (Superclean asked for root access, I allowed it, and it appeared in the log of Superuser)
The problem happened last night when there was an OTA update for superuser, it said Su Binary needs updating, and I hit yes. I then lost root access as per Titanium backup.
I did a search and someone suggested removing and reloading the original superuser APK but that did nothing.
It seems the binary update pooched the root. Anyone successful in getting it back, or knowing how to?
Anyone can help on this?
It appears from the comments in Google Play that many people that were prompted to update the binary from superuser were left without root.
I lost root access on apps once.
All I did was:
1. re-install "superuser" from Google Play.
2. when opening "superuser" app, it asked to update the SU Binary.. and I allowed it to do so through recovery (TWRP/CWM). (I use CWM).
3. the phone will restart into recovery mode automatically, updating the SU Binary, then phone will restart again back into the OS.
This is all it took for myself to gain SU access again.
This should work if the ROM you're using truly does allow SU access.
OTHERWISE.
You could get the latest Super User.zip for your phone, and run it yourself through TWRP/CWM.
Hope this helps, or at least leads you to an answer.
new su binary is the culprit
Hello,
I too lost root after the su update - Superuser would not prompt any more, and all requests are denied after a timeout. Tried deleting Superuser data, deinstalling and reinstalling Superuser, same with some of the apps, but no avail. Then I noticed that sometimes after reboot /system/xbin/su worked when in android debug bridge shell, so I could get root. Then I replaced the su binary with a copy (in my case of OTA rootkeeper), and all started to work again.
Steps to replace:
1. become root in ADB shell using existing su binary
2. remounting system rw
3. bring replacement su to a ext-fs-partition of your device (needed for setuid)
4. make sure file permissions are set to 06755 (-rwsr-sr-x)
5. exit root
6. become root with newly copied su binary
7. replace defect su with new su
8. remount system ro
Hope koush will stop delivering this defect su soon ... I did mail him already ...
Hello world,
I try to make something useful out of my Samsung Galaxy Note 10.1 (GT-n8020), so I've started with reinitializing the device with kies, which got me a fresh android kitkat 4.4.2 rom (build: KOT49H.N8020XXUDNI2). After that, I wanted to flash supersu, of course - I've used chainfires cf-autoroot (CF-Auto-Root-p4notelte-p4noteltexx-gtn8020.zip - cant post links, sorry)
I've also flashed philz recovery which works quite well, over odin.
The problem for now is, I cant use the super user binary:
1. The binary was successfully flashed via odin on the device, like the supersu apk. Opening the app just displays a missing su binary, any other app which requires root cant locate or call the file...
2. The following permissions are set on the su file
[email protected]:/ $ ls -la /system/xbin/su
-rwsr-sr-x root root 96144 2015-09-15 14:44 su
3. I've enabled usb debugging because people like to use magic even if this has nothing to do with the main problem
4. I've tried to execute su via adb shell, but it just hangs.
So if anyone could help, I'd be pretty happy - if not, I'm going to throw this f*ck!ng piece of plastic into the woods.
Alright, using N8020-CWM-6.0.2.8-Darkman.tar.md5 as recovery and CF-Auto-Root-p4notelte-p4noteltexx-gtn8020.tar.md5 as root finally worked.
Phone is Samsung A50 (A505F), Android 11,
1) As title.. how do you do that? I will keep stock ROM.
Only want to root to debloat, and add other apps that require root.
2) Also if you use kingroot, does it unlock the bootloader?
3) If you relock a bootloader does it remove root?
Will relocking erase user data?
Thank you
Generally speaking - with regards to this thread's title:
Rooting phone's Android works without unlocking it's bootloader. Rooting Android simply is adding an user called "superuser ( AKA root )" to Android.
Reason why people unlock bootloader is to be able to flash custom ROMS.
rossrosh007 said:
1) As title.. how do you do that?
2) Also if you use kingroot, does it unlock the bootloader?
Is the kingroot app required to be installed at all times to keep root?
3) If you relock a bootloader does it remove root?
Will relocking erase user data?
Phone is Samsung A50 (A505F)
Thank you
Click to expand...
Click to collapse
Rooting without unlocking bootloader only works on
4.2 jellybean
4.4 KitKat
5.0 lollipop
5.1.1. lollipop
All of the other version of android will not work because in android 6 marshmallow google patched root without unlocking bootloader so this means if u are on Android 6 marshmallow it will not work also if u are on Android 6 marshmallow and higher don't brother with kingroot or all of that one click root because that will not work I would recommend magisk to root your phone
@rossrosh007
Hint: Add Samsung A50 (A505F) to this thread's title thus mainly owners of such a device get addressed.
Austinredstoner said:
Rooting without unlocking bootloader only works on
4.2 jellybean
4.4 KitKat
5.0 lollipop
5.1.1. lollipop
All of the other version of android will not work because in android 6 marshmallow google patched root without unlocking bootloader so this means if u are on Android 6 marshmallow it will not work also if u are on Android 6 marshmallow and higher don't brother with kingroot or all of that one click root because that will not work I would recommend magisk to root your phone
Click to expand...
Click to collapse
I'm on Android 11.
Ok, so I have to patch boot.img with magisk or magisk manager (I don't know the difference)? On GitHub the latest version is just magisk v22.
So to use magisk unlocking bootloader is required... I'll be keeping stock ROM. So will I be able to relock bootloader after patching and rooting?
jwoegerbauer said:
Generally speaking - with regards to this thread's title:
Rooting phone's Android works without unlocking it's bootloader. Rooting Android simply is adding an user called "superuser ( AKA root )" to Android.
Reason why people unlock bootloader is to be able to flash custom ROMS.
Click to expand...
Click to collapse
I'm on Android 11, and I'll keep stock Rom.
How can I flash SuperSU without custom recovery or unlocking bootloader?
If I have to unlock bootloader, can I relock it after flashing SuperSU?
rossrosh007 said:
I'm on Android 11, and I'll keep stock Rom.
How can I flash SuperSU without custom recovery or unlocking bootloader?
If I have to unlock bootloader, can I relock it after flashing SuperSU?
Click to expand...
Click to collapse
Don't confuse SuperSU ( what is an application which lets you manage root permissions for apps which require root access) and SU ( AKA superuser and/or root ): Totally different things.
SuperSU app relies on presence of SU applet.
Installing SU applet doesn't require phone's bootloader gets unlocked, but it's required Android's DM-VERITY feature permanently gets disabled before, this because content of /system partition gets altered.
Look also inside here:
SuperSU: Installation Guide (Rooted and Unrooted Devices)
There are two ways to install SuperSU. If you have a Rooted Device then you can simply download this APK file and install it on your device. For unrooted de
www.squto.com
jwoegerbauer said:
Don't confuse SuperSU ( what is an application which lets you manage root permissions for apps which require root access) and SU ( AKA superuser and/or root ): Totally different things.
SuperSU app relies on presence of SU applet.
Installing SU applet doesn't require phone's bootloader gets unlocked, but it's required Android's DM-VERITY feature permanently gets disabled before, this because content of /system partition gets altered.
Look also inside here:
SuperSU: Installation Guide (Rooted and Unrooted Devices)
There are two ways to install SuperSU. If you have a Rooted Device then you can simply download this APK file and install it on your device. For unrooted de
www.squto.com
Click to expand...
Click to collapse
Ok. SuperSU app is the permission manager.
How do I go about implementing superuser without unlocking bootloader on Android 11?
Unlocking BL is required when using magisk. I'll be keeping stock ROM, so will I be able to relock BL after patching boot.img with magisk? Will root/superuser stay if I relock BL?
Some threads say the magisk patched boot.img is considered tampered and the DM-verity will cause issues when relocking BL. Unless you sign it... Is that true? (Different users saying true and false, so I don't know what is what)
1. You install matching SU applet by means of ADB. The SU applet can get fetched from here
LineageOS Downloads
download.lineageos.org
2. Can't tell you what is right or wrong: never made use of Magisk or TWRP.
jwoegerbauer said:
1. You install matching SU applet by means of ADB. The SU applet can get fetched from here
LineageOS Downloads
download.lineageos.org
2. Can't tell you what is right or wrong: never made use of Magisk or TWRP.
Click to expand...
Click to collapse
Fair enough on point 2
The SU from LineageOS not a problem to use on Samsung stock Rom? I mean that SU applet not developed to be compatible with LineageOS only or something?
Any instruction on how to apply this SU applet will be useful. (I'm searching through the forum as well)
Only to clarify things:
SU is a Linux command, Android is based on Linux kernel, hence SU applet compiled for mobile's CPU architecture always works, regardless of mobile's brand / model / Android release.
As I already mentioned here, you can install SU by means of a ADB command-sequence which typically looks like this
Code:
adb disable-verity
adb reboot
adb shell "mount -t auto -o rw,remount /system"
adb push <SU-BINARY-LOCATION-ON-PC-HERE> /system/bin
adb shell "chown root:root /system/bin/su"
adb shell "chmod 06755 /system/bin/su"
adb shell "chcon '/system/bin/su' u:object_r:su_exec:s0"
jwoegerbauer said:
Only to clarify things:
SU is a Linux command, Android is based on Linux kernel, hence SU applet compiled for mobile's CPU architecture always works, regardless of mobile's brand / model / Android release.
As I already mentioned here, you can install SU by means of a ADB command-sequence which typically looks like this
Code:
adb disable-verity
adb reboot
adb shell "mount -t auto -o rw,remount /system"
adb push <SU-BINARY-LOCATION-ON-PC-HERE> /system/bin
adb shell "chown root:root /system/bin/su"
adb shell "chmod 06755 /system/bin/su"
adb shell "chcon '/system/bin/su' u:object_r:su_exec:s0"
Click to expand...
Click to collapse
True, it's all Linux based, but thought the directories might be different manufacturer to manufacturer. With the verify functions and all... Didn't want to modify a wrong directory and get bricked.
Nice, thanks for the help and ADB commands. Also just came across LADB (on-phone ADB shell), will give it a go on that.
Will update back.
Austinredstoner said:
Rooting without unlocking bootloader only works on
4.2 jellybean
4.4 KitKat
5.0 lollipop
5.1.1. lollipop
All of the other version of android will not work because in android 6 marshmallow google patched root without unlocking bootloader so this means if u are on Android 6 marshmallow it will not work also if u are on Android 6 marshmallow and higher don't brother with kingroot or all of that one click root because that will not work I would recommend magisk to root your phone
Click to expand...
Click to collapse
rossrosh007 said:
I'm on Android 11.
Ok, so I have to patch boot.img with magisk or magisk manager (I don't know the difference)? On GitHub the latest version is just magisk v22.
So to use magisk unlocking bootloader is required... I'll be keeping stock ROM. So will I be able to relock bootloader after patching and rooting?
Click to expand...
Click to collapse
Hope you can give me some insight on this. Would be good to learn.
jwoegerbauer said:
Only to clarify things:
SU is a Linux command, Android is based on Linux kernel, hence SU applet compiled for mobile's CPU architecture always works, regardless of mobile's brand / model / Android release.
As I already mentioned here, you can install SU by means of a ADB command-sequence which typically looks like this
Code:
adb disable-verity
adb reboot
adb shell "mount -t auto -o rw,remount /system"
adb push <SU-BINARY-LOCATION-ON-PC-HERE> /system/bin
adb shell "chown root:root /system/bin/su"
adb shell "chmod 06755 /system/bin/su"
adb shell "chcon '/system/bin/su' u:object_r:su_exec:s0"
Click to expand...
Click to collapse
Can I install supersu.apk (root access manager) after this?
If I need to revert things back to how they were (unroot, enable dm-verity) ... How do I do that?
rossrosh007 said:
Can I install supersu.apk (root access manager) after this?
Click to expand...
Click to collapse
SuperSU APK is just like any other Android application. It only will properly work if SU is runing as Android service, means gets started at Android's boot up
Code:
# su daemon
service su_daemon /system/bin/su --daemon
seclabel u:r:sudaemon:s0
oneshot
on property:persist.sys.root_access=1
start su_daemon
what requires Android's boot file init.rc must got patched accordingly.
frequently conversing - with thoughts to this thread's headline:
I am rooting the phone's Android products externally, unfastening its bootloader. Rooting Android only is combining a user-designated "superuser ( AKA motive )" toward Android.
Special purpose how? Somebody unlock bootloaders is to be capable of flashing system ROMS.
jwoegerbauer said:
Only to clarify things:
SU is a Linux command, Android is based on Linux kernel, hence SU applet compiled for mobile's CPU architecture always works, regardless of mobile's brand / model / Android release.
As I already mentioned here, you can install SU by means of a ADB command-sequence which typically looks like this
Code:
adb disable-verity
adb reboot
adb shell "mount -t auto -o rw,remount /system"
adb push <SU-BINARY-LOCATION-ON-PC-HERE> /system/bin
adb shell "chown root:root /system/bin/su"
adb shell "chmod 06755 /system/bin/su"
adb shell "chcon '/system/bin/su' u:object_r:su_exec:s0"
Click to expand...
Click to collapse
I've just found this thread and wanted to understand something. Does adb disable-verity work without unlocking bootloader?
Do you mean that if you install su on the system via adb on the above sequence then the system is essentially rooted no matter whether you unlock the bootloader or not?
Earlier it was mentioned that you need to run a service in order for the superuser apps to work and this requires the boot.img to be modified and this needs the bootloader to be unlocked. Will superuser apps like superuser apk work just with su on the system?
I mean can I just soft start the daemon with a terminal app without adding it as a startup service?
Again: Rooting Android is adding an user named SUPERUSER to Android OS - not to get confused with Android's default user named root - an user who has elevated rights ( comparable to Administrator in Windows OS ).
The SuperSU app what you're referring to is a manager app that runs a database where apps which request superuser right are stored.
The SuperSu service ( read: sudaemond ) is a complete other thing, it serves another purpose: it's needed to have SuperSU app working.
It's not possible to add any binary or user or rooting app without unlocking your bootloader. All partitions except /data are not writable.
More nonsense is hardly possible.
I naturally can't access apps which require the device to be unrooted in my androidx-86. Can anyone help me out?
version - 9
Android is got rooted if su binary is present in Android's /system/bin and/or /system/xbin directory.
To unroot Android simply locate the su binary and delete it. Take note doing so you loose root access forever.
Also uninstall the SuperUser.apk if present.