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So I never wanted to unlock my bootloader, because of Gracenote especially, idc about BE2 , but I installed a custom ROM the other day, existens i1 Honami, but I got stuck in a bootloop.
I had a nandroid backup but it was done from CWM, and the one was TWRP, so I was kind of screwed. I installed other zips to get cwm, but CWM wouldnt launch, I would get a black screeen, Even dual recoveries, TWRP would work, but not CWM.
Then I was forced to unlock bootloader to use fastboot to flash the boot img, after which I managed to restore my nandroid.
BUT i totally forgot that I will lose all my data, and DRM keys forever :/ *BANGS HEAD*
But apparently its working right now after the backup, is it normal? Bootloader is relocked btw
And is there any easier way to solve the situation right there?
Bump, come on someone answer, I thought this forum was alive
No way to get DRM keys back.
I remember when I was unlocking my bootloader I backed up my DRM keys with the Backup TA tool......Could you use my backup file??!
Sent from my C6606 using xda premium
Please do not use other's TA backup file!!!!
You will brick your phone as this has been confirmed.
You can only use back your own TA backup. If you did not do it before you unlocked, your DRM key is losts no matter whether you relock your bootloader subsequently.
pitbull292006 said:
I remember when I was unlocking my bootloader I backed up my DRM keys with the Backup TA tool......Could you use my backup file??!
Sent from my C6606 using xda premium
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Only if he doesn't ever want to use his phone again.
Technically there shouldn't be any problem transferring DRM keys between devices, but we must first figure out how they are stored in the TA partition, since copying that entire partition changes some essential data rendering the device unbootable.
newtbie said:
Please do not use other's TA backup file!!!!
You will brick your phone as this has been confirmed.
You can only use back your own TA backup. If you did not do it before you unlocked, your DRM key is losts no matter whether you relock your bootloader subsequently.
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Click to collapse
Calm down there weirdo......I simply asked a simple question, which only required a simple answer
Sent from my C6606 using xda premium
pitbull292006 said:
Calm down there weirdo......I simply asked a simple question, which only required a simple answer
Sent from my C6606 using xda premium
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He was right to issue a warning. Flashing somebody else's TA partition will cause an unrecoverable hard brick.
Sent from my C6603 using Tapatalk 2
If I didn't have my DRM keys, I wouldn't be able to use Gracenote, is that right?
TrackID? You should still be able to use it without issue. It has become a public application in Google Play now, not limiting to Sony phones.
I'm wild guessing that the retrieval of music info from the WALKMAN app may fail.
You can try out for yourself since you unlocked your bootloader.
---------- Post added at 01:23 AM ---------- Previous post was at 01:21 AM ----------
kingvortex said:
He was right to issue a warning. Flashing somebody else's TA partition will cause an unrecoverable hard brick.
Sent from my C6603 using Tapatalk 2
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Click to collapse
The problem with some users over here is they gave wrong advice and end up causing someone's misery. Afterall we are helping one another to resolve our issues or to prevent things from going haywire, don't you think so?
I've lost DRM keys and Camera don't working right now. Any way for fix camera?
kartal172 said:
I've lost DRM keys and Camera don't working right now. Any way for fix camera?
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dont know. I lost mine to.
but i have been trying last 10 days to extract download_package.bin which is ota update for my phone if it contain cert.rsa for my Hardware Unique Key Then I m quiet sure that creating meta-inf file using that key will get us back DRM keys.
Waiting Any PRO or thread to guide us.
As far as i know it's impossible if you didn't made ta backup before unlocking your bootloader.
O have a ta backup and im on existenz and doomkernel is it possible to restore my ta now? And still have the benifits of a unlocked bootloader?
Sent from my C6603 using xda app-developers app
demon2112 said:
O have a ta backup and im on existenz and doomkernel is it possible to restore my ta now? And still have the benifits of a unlocked bootloader?
Sent from my C6603 using xda app-developers app
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Click to collapse
No. If you restore your TA backup while running a custom kernel, it will relock your bootloader and soft brick your phone.
Sent from my C6603 using Tapatalk
kingvortex said:
No. If you restore your TA backup while running a custom kernel, it will relock your bootloader and soft brick your phone.
Sent from my C6603 using Tapatalk
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Click to collapse
And.on a stock kernel with custom rom then?
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kingvortex said:
No. If you restore your TA backup while running a custom kernel, it will relock your bootloader and soft brick your phone.
Sent from my C6603 using Tapatalk
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demon2112 said:
And.on a stock kernel with custom rom then?
Sent from my C6603 using xda app-developers app
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It would interesst me too
gripfly said:
It would interesst me too
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Click to collapse
If you relock your bootloader by restoring a TA backup while on a stock unmodified kernel then nothing bad should happen.
This limits you to using only stock based roms, however as CM/AOSP/AOKP based roms require a custom kernel and therefore an unlocked bootloader.
Sent from my C6603 using Tapatalk
kingvortex said:
If you relock your bootloader by restoring a TA backup while on a stock unmodified kernel then nothing bad should happen.
This limits you to using only stock based roms, however as CM/AOSP/AOKP based roms require a custom kernel and therefore an unlocked bootloader.
Sent from my C6603 using Tapatalk
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Click to collapse
So for the hole ''flash history'' the Kernel is always that important thing we have to give a look on it? The other part of a ROM are more or less not important?
So when I have a unlocked device with stock kernel and stock based custom ROM I can restore the TA without any problems?
Is there a way to check the drm keys, if they are realy there?and a way to check if be2 works? (build prop line) or something
Sent from my C6603 using xda app-developers app
Hi guys
I'm pretty new to the XZ and just wanted to clarify something before I go ahead and flash a ROM.
I have backed up my TA Partition using TA-Backup Tool and have rooted my device.
I am about to install Recovery and Unlock the bootloader, all pretty straight forward from what I've read so far :laugh:
My only question so far is, if / when I want to relock the bootloader can I simply do this using the "restore" option within TA-Backup Tool (providing I am on a Stock ROM), or do I need to Relock using Flashtool and then restore the TA partition?
Thanks
G
Just use ta backup to relock that will flash the ta partition you have backed up to a unlocked status with drm keys
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Maddhouse said:
Just use ta backup to relock that will flash the ta partition you have backed up to a unlocked status with drm keys
Sent from my C6603 using xda premium
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Brilliant!! I'm assuming I can still do this even if the stock ROM has a Recovery such as CWM on it?
Yes but you need to remember what state you backed your phone's ta up with otherwise m5 key won't match
Sent from my C6603 using xda premium
xperia z
Maddhouse said:
Yes but you need to remember what state you backed your phone's ta up with otherwise m5 key won't match
Sent from my C6603 using xda premium
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hello what is a m5 key also im wondering how to get back to stock as i have unlocked bootloader on cyanogenmod 11 but i do wish to go back to stock only if the bravia engine and all features work. i have backed up my drm keys just need to figure out how do i restore and what process cant find anything on it
thanks
Hello!
I've heard somewhere that if I unlock my bootloader that Mobile Bravia Engine won't work, is that true?
Thanks in advance
MARKOZD15 said:
Hello!
I've heard somewhere that if I unlock my bootloader that Mobile Bravia Engine won't work, is that true?
Thanks in advance
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Click to collapse
Apparently yes it is
You can preserve your drm key before and restore if ever you return to stock.
Plus if you look in the development section, I believe there is a guide to getting it working on unlocked bootloaders.
Xperia Z
If you havent unlocked your bl yet, you can backup ta partition before proceeding to unlock. After you unlocked you can simply restore ta parititon.
Be aware, for backup you need to be rooted your phone. And rooting not possible without unlocking the bl on the newly versions .569 and .101 (yet)
mzyil said:
If you havent unlocked your bl yet, you can backup ta partition before proceeding to unlock. After you unlocked you can simply restore ta parititon.
Be aware, for backup you need to be rooted your phone. And rooting not possible without unlocking the bl on the newly versions .569 and .101 (yet)
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I have already unlocked my bootloader, can I relock it and do that?
Thanks to everyone
MARKOZD15 said:
I have already unlocked my bootloader, can I relock it and do that?
Thanks to everyone
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Click to collapse
If you have unlocked bl nd did not backup ta then there is no chance you can get back drm keys bt there is a way to install bravia engine search in the forum.
Sent from my C6602 using XDA Premium 4 mobile app
vikash1994b said:
If you have unlocked bl nd did not backup ta then there is no chance you can get back drm keys bt there is a way to install bravia engine search in the forum.
Sent from my C6602 using XDA Premium 4 mobile app
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There's no way to get back my drm keys??
So if my phone broke, I can't relock my booloader and send it to RMA?
MARKOZD15 said:
There's no way to get back my drm keys??
So if my phone broke, I can't relock my booloader and send it to RMA?
Click to expand...
Click to collapse
You cant get your drm keya back but you can still relock your bootloader by flashtool
Sent from my C6602 using XDA Premium 4 mobile app
Just one more question..
If I relock my bootloader, without restoring TA partition (drm keys), will Mobile Bravia Engine 2 still work?
MARKOZD15 said:
Just one more question..
If I relock my bootloader, without restoring TA partition (drm keys), will Mobile Bravia Engine 2 still work?
Click to expand...
Click to collapse
No. No DRM keys means no BE2.
Sent from my C6603 using Tapatalk
Aaah.. I'm so pissed.. I didn't knew anything about TA partition and drm keys, now I know that I'm gonna read better next time
Thanks to everyone for help and sorry for bad english, I'm from Croatia
Cheers
Look here
http://forum.xda-developers.com/showthread.php?t=2610923
Xperia Z
Although not your original drm keys, the author claims to get Bravia engine 2 working again..
boyob32 said:
Look here
http://forum.xda-developers.com/showthread.php?t=2610923
Xperia Z
Although not your original drm keys, the author claims to get Bravia engine 2 working again..
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Worked for me, thanks
my drm keys were lost after re locking BL. now i want to unlock it again but it fails every time i enter the unlock code..I'm on. 157. is this because of lost drm keys? any assistance please?
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ast9011 said:
my drm keys were lost after re locking BL. now i want to unlock it again but it fails every time i enter the unlock code..I'm on. 157. is this because of lost drm keys? any assistance please?
Sent from my C6902 using XDA Free mobile app
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without restoring your drm keys at bootloader relock, you wont be able to re-unlock your bootloader.
mo120697 said:
without restoring your drm keys at bootloader relock, you wont be able to re-unlock your bootloader.
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Click to collapse
Oh crap! No custom roms for entire life on this phone. Some hope?
Sent from my C6902 using XDA Free mobile app
Hi, Is it possible to take backup & restore of DRM Keys of Xperia Z3+? After bootloader unlocking, is there is any chance of getting back the warranty? After Unlocking bootloader of Z3+, can I get the official updates? (restoring stock ROM without rooting)
Can anybody help me answer me about these?
Thanks in advance.
First, you should not use your email as a username.
Second, there is no known way of backing up DRM keys, but you can re-enable function of those using DRM restore (search the forum a bit). You can always relock the bootloader using Flashtool (again, search xda or Google) to regain warranty and also to get official updates. You can also flash any firmware using Flashtool without the need for official updates.
Oh and don't open three threads for three questions and especially not in general section but in Q&A...
diemadedrei said:
First, you should not use your email as a username.
Second, there is no known way of backing up DRM keys, but you can re-enable function of those using DRM restore (search the forum a bit). You can always relock the bootloader using Flashtool (again, search xda or Google) to regain warranty and also to get official updates. You can also flash any firmware using Flashtool without the need for official updates.
Oh and don't open three threads for three questions and especially not in general section but in Q&A...
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Click to collapse
Thanks for great info. :good:
[email protected] said:
Hi, Is it possible to take backup & restore of DRM Keys of Xperia Z3+? After bootloader unlocking, is there is any chance of getting back the warranty? After Unlocking bootloader of Z3+, can I get the official updates? (restoring stock ROM without rooting)
Can anybody help me answer me about these?
Thanks in advance.
Click to expand...
Click to collapse
Can you try this on your responsibility and report
If you haven't unlocked bootloader
http://forum.xda-developers.com/crossdevice-dev/sony/iovyroot-temp-root-tool-t3349597?nocache=1
[email protected] said:
Hi, Is it possible to take backup & restore of DRM Keys of Xperia Z3+? After bootloader unlocking, is there is any chance of getting back the warranty? After Unlocking bootloader of Z3+, can I get the official updates? (restoring stock ROM without rooting)
Can anybody help me answer me about these?
Thanks in advance.
Click to expand...
Click to collapse
Yes! 1000 x Yes!
follow this tutorial to backup our DRM Key:
http://forum.xda-developers.com/cro...ot-temp-root-tool-t3349597/page6#post66151975
bruno$0 said:
Yes! 1000 x Yes!
follow this tutorial to backup our DRM Key:
http://forum.xda-developers.com/cro...ot-temp-root-tool-t3349597/page6#post66151975
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Can you confirm this is really working on Z3+/Z4?
Further, this is only step 1 of 2, hence did you try/do http://forum.xda-developers.com/xperia-z5/development/root-automatic-repack-stock-kernel-dm-t3301605 as well?
I Will perform this process in next week. But i better If someone already did tô tell If its works or not!
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bruno$0 said:
I Will perform this process in next week. But i better If someone already did tô tell If its works or not!
Sent from my E6533 using XDA-Developers mobile app
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Yes, iovyroot allows you to back up your DRM and use it later to restore on locked bootloader, already done it and right now liking it so far. However, only 266 firmware is working. Other versions does not work.