https://forum.xda-developers.com/crossdevice-dev/sony/universal-dirtycow-based-ta-backup-t3514236
this thread not work for me because im using oreo. so i cannot backup TA . any method to do this
Suminda said:
https://forum.xda-developers.com/crossdevice-dev/sony/universal-dirtycow-based-ta-backup-t3514236
this thread not work for me because im using oreo. so i cannot backup TA . any method to do this
Click to expand...
Click to collapse
No way (yet) to backup TA on Oreo, you have to downgrade
How can i downgrade to mm without unlock bl
Related
Hii .. just a quick question_do i need to restore my TA backup to completely unroot my phone for the new update ?
Sent from my C2104 using Tapatalk
In most cases, you'll need a locked bootloader (restoring TA backup to do so). When updating you'll lose root.
Joery360 said:
In most cases, you'll need a locked bootloader (restoring TA backup to do so). When updating you'll lose root.
Click to expand...
Click to collapse
thanks for replying .. okey i'll lock my bootloader again_
here is what i will do .. i'll install the ftf again and then restore the TA backup , this will do for the sony companion app to recognize my phone .. won't it ?
If you are updating your phone via flashtool, You wont need a locked bootloader.
Hi
I have a Sony Xperia Z3 Dual (D6633)
Android Lollipop 5.0.2 Build 23.1.1.E.0.1 ( Original-Stock firmware )
Locked bootloader
I want to root it without flashing any new firmware, and without unlocking the bootloader
Just Rooting
Thanks
cmureza said:
Hi
I have a Sony Xperia Z3 Dual (D6633)
Android Lollipop 5.0.2 Build 23.1.1.E.0.1 ( Original-Stock firmware )
Locked bootloader
I want to root it without flashing any new firmware, and without unlocking the bootloader
Just Rooting
Thanks
Click to expand...
Click to collapse
You cannot
Either downgrade to a firmware that is rootable via giefroot or unlock the bootloader and root. Please be advised that rooting via unlocking the bootloader first loses you the DRM keys.
The 'best' way to root is via downgrading. If you then plan to unlock the boot you can backup the TA partition to save your DRM keys.
gregbradley said:
You cannot
Either downgrade to a firmware that is rootable via giefroot or unlock the bootloader and root. Please be advised that rooting via unlocking the bootloader first loses you the DRM keys.
The 'best' way to root is via downgrading. If you then plan to unlock the boot you can backup the TA partition to save your DRM keys.
Click to expand...
Click to collapse
Downgrad ?
Could you please explain it to me clearly step by step ?
And
Is there any other program that just easy as click one key ?
Thanks
cmureza said:
Downgrad ?
Could you please explain it to me clearly step by step ?
And
Is there any other program that just easy as click one key ?
Thanks
Click to expand...
Click to collapse
http://forum.xda-developers.com/z3/general/guide-rootrecovery-how-to-root-install-t3017056
Is there any easier way and less risky ?
Just install a app and get rooted by one click?
When do you think we could see such a app???
cmureza said:
Is there any easier way and less risky ?
Just install a app and get rooted by one click?
When do you think we could see such a app???
Click to expand...
Click to collapse
No way to do it other than this.
It is not hard.
I have a Z5 E6633. I've read that I should back up my TA partition before I unlock the boot-loader. The Backup-Ta programme says that it needs root. To get root I need to unlock the boot-loader. If I've unlocked the boot-loader it's too late to backup the TA partition isn't it? Or am I missing something here?
Can somebody clarify this?
Thank you.
Badmem said:
I have a Z5 E6633. I've read that I should back up my TA partition before I unlock the boot-loader. The Backup-Ta programme says that it needs root. To get root I need to unlock the boot-loader. If I've unlocked the boot-loader it's too late to backup the TA partition isn't it? Or am I missing something here?
Can somebody clarify this?
Thank you.
Click to expand...
Click to collapse
the current tool used to backup your TA uses Tempoary Root to backup the TA partition, this means you need to downgrade to a very old firmware for this work, after backing up your TA you can then upgrade back to marshmallow.
Thank you for your reply. What tools are there to backup the TA partition?
Look at this post:
http://forum.xda-developers.com/xperia-z5/general/guide-how-to-backup-drm-unlock-rootfor-t3373312
I'd suggest this one
http://forum.xda-developers.com/showthread.php?t=3354307
The tool i mentioned was called ivoryroot
Sent from my E6653 using XDA-Developers mobile app
Thanks for the replies. Unfortunately I think I've messed-up. When I got my Z5 E6633 I unlocked the boot-loader with Flashtool without backing-up the TA partition. I've tried to relock the boot-loader without success. I've tried the options you've posted here to go back to stock lollipop and use ivoroot to back-up the TA and restore. It hasn't worked. Is there any way to get the locked boot-loader back?
Thank you.
Badmem said:
Thanks for the replies. Unfortunately I think I've messed-up. When I got my Z5 E6633 I unlocked the boot-loader with Flashtool without backing-up the TA partition. I've tried to relock the boot-loader without success. I've tried the options you've posted here to go back to stock lollipop and use ivoroot to back-up the TA and restore. It hasn't worked. Is there any way to get the locked boot-loader back?
Thank you.
Click to expand...
Click to collapse
There is no point for you to downgrade now as you have unlocked the boot-loader before TA backup!
Your device keys are lost forever...
you can now try this method to at least get some of DRM related features like x-reality back!
http://forum.xda-developers.com/xperia-z5/development/root-automatic-repack-stock-kernel-dm-t3301605
Thanks Daniel_GB. As you can see I unlocked the boot-loader without backing-up the TA partition before I got your warning in my other thread. Thanks for your patience. Live and learn
Hey guys. Im aware if you unlock the bootloader, you will lose the warranty and the DRM keys of sony which is responsible for stuff like x-reality enfine, camera algorithm, screen mirroring etc.
MY question is, if you successfully follow tobias guide of backing up and restoring the DRM keys, will you gain everything back? Will ALL the features that are supposed to be gone after unlocking the bootloader be back once you follow his guide?
prince10t said:
Hey guys. Im aware if you unlock the bootloader, you will lose the warranty and the DRM keys of sony which is responsible for stuff like x-reality enfine, camera algorithm, screen mirroring etc.
MY question is, if you successfully follow tobias guide of backing up and restoring the DRM keys, will you gain everything back? Will ALL the features that are supposed to be gone after unlocking the bootloader be back once you follow his guide?
Click to expand...
Click to collapse
Yes. Tried it on my Z5 Compact.
TA Backup, UBL, Root
Downgraded to LP .200
Backup TA Partition image using iovyroot
Flashed MM .185
Unlocked Bootloader
Flashed Custom ROM and Custom Kernel
Cleared Credential Manager's DB to enable DRM Function Restoration mod
Done
Reverting
Pre-req: ROOT (Done this while I was using AndroPlus Kernel v26 on MM .185)
Restored the TA Partition image using Backup TA v9.11 for Windows (I've converted the TA.img first using convert v4 backup inside BackupTA 9.11)
Powered Off after Restoring TA Partition
Flashed MM .185
Done
It should be also noted that some Custom Kernels have integrated the ability to bypass DRM checking by the credential manager. Effectively restoring DRM-Locked functions such as X-Reality Engine and BIONZ without the presence of DRM-Keys in the TA Partition
TechKiel said:
Yes. Tried it on my Z5 Compact.
TA Backup, UBL, Root
Downgraded to LP .200
Backup TA Partition image using iovyroot
Flashed MM .185
Unlocked Bootloader
Flashed Custom ROM and Custom Kernel
Cleared Credential Manager's DB to enable DRM Function Restoration mod
Done
Reverting
Pre-req: ROOT (Done this while I was using AndroPlus Kernel v26 on MM .185)
Restored the TA Partition image using Backup TA v9.11 for Windows (I've converted the TA.img first using convert v4 backup inside BackupTA 9.11)
Powered Off after Restoring TA Partition
Flashed MM .185
Done
It should be also noted that some Custom Kernels have integrated the ability to bypass DRM checking by the credential manager. Effectively restoring DRM-Locked functions such as X-Reality Engine and BIONZ without the presence of DRM-Keys in the TA Partition
Click to expand...
Click to collapse
Thanks man. Is there also a way to restore DRM keys and RELOCK the bootloader? Like undo everything?
prince10t said:
Thanks man. Is there also a way to restore DRM keys and RELOCK the bootloader? Like undo everything?
Click to expand...
Click to collapse
Yes but you have to on a stock kernel and rooted before you restore your backed up TA Partition img
Sent from my E6653 using XDA-Developers mobile app
https://forum.xda-developers.com/crossdevice-dev/sony/poc-real-trim-instead-drm-fix-t3552893
Give me the instructions for poc.how it will work???
Need TA backup or not??
divakarhero said:
https://forum.xda-developers.com/crossdevice-dev/sony/poc-real-trim-instead-drm-fix-t3552893
Give me the instructions for poc.how it will work???
Need TA backup or not??
Click to expand...
Click to collapse
Yes you need a TA backup to have it working. It's that I suspected, we can mount the ta.img during boot but wasn't able to confirm because I unlocked my bootloader before the release of the Dirtycow exploit.
rrvuhpg said:
Yes you need a TA backup to have it working. It's that I suspected, we can mount the ta.img during boot but wasn't able to confirm because I unlocked my bootloader before the release of the Dirtycow exploit.
Click to expand...
Click to collapse
Thank you for your quick reply:good: