I know about the TA partition containing the DRM keys and backing it up from my previous XPERIA PHONES experience. However this time, I just unlocked the BL without thinking about TA backup :crying:. I tried to find some forums on it for XA2 ULTRA, but there is no specific well detailed thread on TA Partition backup for XA2 ULTRA. So what is the deal now? Have I lost my DRM keys + official SONY WARRANTY?:silly: Is there any workaround of restoring these DRM KEYS + TA partition? Shall I root first before doing so or anything else?
As far as I know, once you unlock the bootloader, they're gone and there's no way to get them back, but also you're not missing much, but you are definitely no longer in warranty.
roirraW "edor" ehT said:
As far as I know, once you unlock the bootloader, they're gone and there's no way to get them back, but also you're not missing much, but you are definitely no longer in warranty.
Click to expand...
Click to collapse
But I also didn't find any forum pertaining to XA2 ULTRA's TA Partition backup before unlocking the BL. Anyways. I think if you flash the original ROM back again, the DRM keys are included in it. May be. I am not sure.
noob_coder said:
But I also didn't find any forum pertaining to XA2 ULTRA's TA Partition backup before unlocking the BL. Anyways. I think if you flash the original ROM back again, the DRM keys are included in it. May be. I am not sure.
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Click to collapse
The ROM won't re-lock the bootloader, there's no way to re-lock the bootloader, and unlocking the bootloader is what scraps the DRM keys. Sony's site where you get the code for unlocking your bootloader using your IMEI makes it clear that it's permanant. I'm under the impression that the DRM keys are different for everyone's phone, so they won't be in the stock ROM that everyone can download and reflash.
roirraW "edor" ehT said:
The ROM won't re-lock the bootloader, there's no way to re-lock the bootloader, and unlocking the bootloader is what scraps the DRM keys. Sony's site where you get the code for unlocking your bootloader using your IMEI makes it clear that it's permanant. I'm under the impression that the DRM keys are different for everyone's phone, so they won't be in the stock ROM that everyone can download and reflash.
Click to expand...
Click to collapse
Who gives the F anyways? I bought the phone from one country and will be taking it to another country, so there is not even a single point of reconsidering back the DRM keys + Sony's official Warranty. I hope this device would last 2 years without any problems.
Related
Hello guys,
I have read thru somethreads outside of our phone's forum, and found some people restoring TA's from phones that allow bootloader unlocking, and was thinking if it's safe to do the same with our XL.
I understand there are certain modifications that have to be done.
Thanks in Advanced!
P.S. Searched the forums of the XL, but I didn't find anything with this matter, sorry if it has bean brought up.
If you forgot to backup your TA like me see this thread
http://forum.xda-developers.com/showthread.php?t=2604484&goto=newpost
As stated above, yes it's possible.
But you don't get your DRM keys back, thus your warranty is still voided.
Re-expressing my question
Joery360 said:
As stated above, yes it's possible.
But you don't get your DRM keys back, thus your warranty is still voided.
Click to expand...
Click to collapse
I must have expressed myself wrong.
I have my TA backup, but i have not unlocked my bootloader, because my unlocking status is NOT ALLOWED, yet my question is, if I can use a TA backup from another phone that has a bootloader unlock allowed: YES, so I can transfer this status to my device, therefor allowing me to unlock my bootloader.
Regards.
rguilamo said:
I must have expressed myself wrong.
I have my TA backup, but i have not unlocked my bootloader, because my unlocking status is NOT ALLOWED, yet my question is, if I can use a TA backup from another phone that has a bootloader unlock allowed: YES, so I can transfer this status to my device, therefor allowing me to unlock my bootloader.
Regards.
Click to expand...
Click to collapse
As far as I know its not possible to unlock your bootloader if unlocking is not allowed.
But you might want to take a look here. It's CWM for locked bootloaders.
If you really want to unlock you should consider selling your phone and buying a Xperia L where's unlocking allowed (mostly sim lock free phones)
There might be a risk of hard bricking of your phone if you restore someone else's TA backup
Sent from my C2104 using Tapatalk
rguilamo said:
I must have expressed myself wrong.
I have my TA backup, but i have not unlocked my bootloader, because my unlocking status is NOT ALLOWED, yet my question is, if I can use a TA backup from another phone that has a bootloader unlock allowed: YES, so I can transfer this status to my device, therefor allowing me to unlock my bootloader.
Regards.
Click to expand...
Click to collapse
did u attempt? what was the result?
pls kindly let us know. if u conform....imtoo thinking for it.
Don't try messing with TA backup or you will end up bricking the device and i am talking about hardbrick. If you restore someone else TA backup your mobile won't boot up and you won't be able to flash FTF again.
I haven't checked XDA in awhile because I gave up hope of ever having a good root solution for the Z5. But I have been looking around lately and have seen roms such as [ROM][E6653] Slim Stock 32.0.A.6.200 and the [LP][UB][ROOT][DRM][KERNEL][RECOVERY](TWRP3.0) Z5 ADV STOCK KERNEL (2016/03/04) (v1g) kernel. So as of now, I'm a little lost here. Of the 15+ Android phones I've had, this has been the most complicated.
I understand that root is possible by unlooking the bootloader and that as of now, there is no root solution for a locked bootloader. Are you now able to unlock the bootloader and root with phone without losing any features?
You still lose DRM. There is a possibility to trick the phone into thinking the DRM keys aren't wiped restoring the DRM features after unlocking the bootloader but the DRM is still missing.
Mr_Bartek said:
You still lose DRM. There is a possibility to trick the phone into thinking the DRM keys aren't wiped restoring the DRM features after unlocking the bootloader but the DRM is still missing.
Click to expand...
Click to collapse
So you'll lose DRM keys but you can still retain all the features? I hope the same will be true for the Marshmallow update.
That's right. We don't have a kernel to run modified system images on MM just yet so can't confirm nor deny it working.
Just as mentioned above. I dont mind waiting but just wanna ask is there anybody able to get it already? I've done some google, some pages offer a very 'detailed' instructions like just install TWRP using fastboot method then flash the SuperSU binary then bingo!! Some others state unlocking BL is required. Since to me xda is the only reliable source so I guess I will be looking for answers here.
Cheers
since the Z3+ and newer devices, root with lock bootloader is impossible at least for now.
btw, unlock bootloader is so easy for root, why not? Warranty?
tommy1616 said:
since the Z3+ and newer devices, root with lock bootloader is impossible at least for now.
btw, unlock bootloader is so easy for root, why not? Warranty?
Click to expand...
Click to collapse
Well... DRM keys thing is what i concern. AFAIK im gonna have to give up some features if i lose it so...
Btw it'd be appreciated if u could share some posts about re-locking bootloader and backing up/restoring DRM keys, especially for this new Xperia XZ.
boydzethuong said:
Well... DRM keys thing is what i concern. AFAIK im gonna have to give up some features if i lose it so...
Btw it'd be appreciated if u could share some posts about re-locking bootloader and backing up/restoring DRM keys, especially for this new Xperia XZ.
Click to expand...
Click to collapse
This kernel have DRM Patch
http://forum.xda-developers.com/xperia-xz/development/kernel-andropluskernel-v01-t3475240
But.... If unlocked bootloader, DRM keys well loss
and no backup way in marshmallow with no root at the least
tommy1616 said:
This kernel have DRM Patch
http://forum.xda-developers.com/xperia-xz/development/kernel-andropluskernel-v01-t3475240
But.... If unlocked bootloader, DRM keys well loss
and no backup way in marshmallow with no root at the least
Click to expand...
Click to collapse
That's what im worrying haha. Guess i'll wait, patiently, for a talent shows up
Someone just pls pls find a way to have it rooted without unlocking BL, or just a way to back up TA BEFORE unlocking for the sake of DRM keys sh!t then nothing would stop me from enjoying root
boydzethuong said:
That's what im worrying haha. Guess i'll wait, patiently, for a talent shows up
Someone just pls pls find a way to have it rooted without unlocking BL, or just a way to back up TA BEFORE unlocking for the sake of DRM keys sh!t then nothing would stop me from enjoying root
Click to expand...
Click to collapse
I've been waiting for over 3mths for some progress on backing up the ta keys on all the x range(I have the xa) I don't see it ever happening to be honest and I've made the mistake of loosing ta keys before I won't be doing it again.
Sent from my Xperia XA using XDA Labs
Hi all.
I've got my XZ since one week now, and I'm missing the possibilities of rooting my device.
My Z2 was LB, so I never could ever try to unlock my bootloader. therefore, I don't know anything about it.
I've read a lot of thread here and there, and some points are not that clear to me.
Will the procedure of unlocking the bootloader erase everything in the phone (like photos, contacts, etc...)?
Unlocking the bootloader will kill the DRM keys forever, if I understood well. but flashing Androplus Kernel will recover them, right?
Is it possible to relock the booltloader after? if yes, will the DRM keys be restored?
Last thing, to be sure of what I should do.
1-unlock the bootloader with IMEI via sony site.
2-install TWRP via adb command
3-flash Androplus kernel.
Am I right, or do I miss something?
Thanks for your help, and sorry for the noobish questions.
sensei_sai said:
Hi all.
I've got my XZ since one week now, and I'm missing the possibilities of rooting my device.
My Z2 was LB, so I never could ever try to unlock my bootloader. therefore, I don't know anything about it.
I've read a lot of thread here and there, and some points are not that clear to me.
Will the procedure of unlocking the bootloader erase everything in the phone (like photos, contacts, etc...)?
Unlocking the bootloader will kill the DRM keys forever, if I understood well. but flashing Androplus Kernel will recover them, right?
Is it possible to relock the booltloader after? if yes, will the DRM keys be restored?
Last thing, to be sure of what I should do.
1-unlock the bootloader with IMEI via sony site.
2-install TWRP via adb command
3-flash Androplus kernel.
Am I right, or do I miss something?
Thanks for your help, and sorry for the noobish questions.
Click to expand...
Click to collapse
Hey sensei_sai,
Im unsure if unlocking will erase your data but its always best to backup everything in the internal memory just in case something goes wrong.
Androplus will NOT recover your DRM keys but kernels with DRM fixes try to replicate the features that are permanently lost as a result of unlocking your boot-loader.
In the future it may be possible for you to re-lock the boot-loader but even then this wont restore DRM keys, the only way to restore DRM keys would be to back up your TA partition (This contains your DRM keys) before you unlock your boot-loader but to do this you need root access with your boot-loader still locked.
How to backup TA
Unfortunately at this time nobody has figured out a way to get root with a locked boot-loader although a newly found exploit (Dirty cow) may help us do this very soon so if you care about re-locking and keeping your DRM keys I advise waiting until a locked boot-loader root solution is around!
Sonic Dash said:
Hey sensei_sai,
Im unsure if unlocking will erase your data but its always best to backup everything in the internal memory just in case something goes wrong.
Androplus will NOT recover your DRM keys but kernels with DRM fixes try to replicate the features that are permanently lost as a result of unlocking your boot-loader.
In the future it may be possible for you to re-lock the boot-loader but even then this wont restore DRM keys, the only way to restore DRM keys would be to back up your TA partition (This contains your DRM keys) before you unlock your boot-loader but to do this you need root access with your boot-loader still locked.
How to backup TA
Unfortunately at this time nobody has figured out a way to get root with a locked boot-loader although a newly found exploit (Dirty cow) may help us do this very soon so if you care about re-locking and keeping your DRM keys I advise waiting until a locked boot-loader root solution is around!
Click to expand...
Click to collapse
Thanks for your reply.
Too bad for the TA partition.
So we have two possibilities. Take the risk of loose some features forever, but benefit of the root or wait till someone make some magic to use an exploit to obtain root without unlocking the bootloader.
Risk and go... Or wait and safe... Dilemma...
Sent from my Xperia XZ
I think that the era of DRM lock is over, we've been using DRM fixes for all the latest xperia phones, the dirty cow is a bad exploit and it's more dangerous than useful.
I was unsure about unlocking the bootloader but now that I did it, I rooted and I regret nothing, the only downside of unlocking is the warranty loss, but who cares as long as the phone doesn't magically explode.
Venom71 said:
I think that the era of DRM lock is over, we've been using DRM fixes for all the latest xperia phones, the dirty cow is a bad exploit and it's more dangerous than useful.
I was unsure about unlocking the bootloader but now that I did it, I rooted and I regret nothing, the only downside of unlocking is the warranty loss, but who cares as long as the phone doesn't magically explode.
Click to expand...
Click to collapse
Good point for you... I think i will take the risk.
Sent from my Xperia XZ
I'm about to....
sensei_sai said:
Good point for you... I think i will take the risk.
Sent from my Xperia XZ
Click to expand...
Click to collapse
caqo71 said:
I'm about to....
Click to expand...
Click to collapse
OK, so did the bootloader unlock erase your data? Did you use the sony way or Flashtool?
I wrote a complete guide just here : https://forum.xda-developers.com/xperia-xz/how-to/how-to-unlock-bl-kernel-twrp-root-t3541648
Please use the search
nathan30 said:
I wrote a complete guide just here : https://forum.xda-developers.com/xperia-xz/how-to/how-to-unlock-bl-kernel-twrp-root-t3541648
Please use the search
Click to expand...
Click to collapse
Thank you, I've seen that guide, seems like it's not possible to unlock bootloader without factory reset.
tempurastyle said:
Thank you, I've seen that guide, seems like it's not possible to unlock bootloader without factory reset.
Click to expand...
Click to collapse
Yes, it's not possible
tempurastyle said:
Thank you, I've seen that guide, seems like it's not possible to unlock bootloader without factory reset.
Click to expand...
Click to collapse
Yes, but it worth it!! Save all your datas and go for it!
Good afternoon friends.
I have a consultation, if unlock my bootloader I lose amenities that in the cell? I remember in the Xperia z1 Yes is lost features, and I have want to install mods in my Xperia xz, but without losing the characteristics especially camera that I love. Thanks in advance.
Translated by Google.
@NicoCardonaM Yes you'll lose your drm keys by unlocking the bootloader and some functionality too.
Good news is that there are work-arounds The best solution is to downgrade to MM with flashtool before unlocking and backup your TA partition and keys. Then you can use TA POC tool to inject your TA and modify the stock kernel to keep your bootloader unlocked with all the features. You can also restore the TA partition if you ever need warranty support, and the bootloader will relock like you never unlocked it
If it's too late for you to backup the DRM keys there are kernels that include DRM-FIX, you'll get pretty much all the functionality back, but your unique keys will be lost forever and warranty too.
TA backup tool: https://forum.xda-developers.com/crossdevice-dev/sony/universal-dirtycow-based-ta-backup-t3514236
TA POC tool: https://forum.xda-developers.com/crossdevice-dev/sony/poc-real-trim-instead-drm-fix-t3552893
If you already unlocked and it's too late to backup your keys you can use something like this:
https://forum.xda-developers.com/xperia-xz/development/kernel-dm-verity-ric-drm-keys-t3672452
Please read carefully before proceeding, backup your phone and all important stuff and you'll have to factory reset more than once probably...
NicoCardonaM said:
Good afternoon friends.
I have a consultation, if unlock my bootloader I lose amenities that in the cell? I remember in the Xperia z1 Yes is lost features, and I have want to install mods in my Xperia xz, but without losing the characteristics especially camera that I love. Thanks in advance.
Translated by Google.
Click to expand...
Click to collapse
XZ has DRM FIX in KERNEL LEVEL so even when drmkeys are LOST you can MOCK it and ALL PREMIUM FEATURES will WORK!
you can however
1. downgrade XZ on Android 6 ( MM ) and user UNIVERSAL TA BACKUP V2 script (AKA dirtycow scrip) to EXTRACT drm keys ( A file with .img extension having filesize approx 2mb )
my xperience
I have the TA.img file with me! but i never used it (YET) to enable Premium features since DRM FIX is doing job at kernel level.
however ONE DAY IF I WANT TO RE LOCK MY BOOTLOADER TO SELL THE DEVICE, I NEED TA.IMG TO RECLOCK MY BOOTLOADER