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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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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And.on a stock kernel with custom rom then?
Sent from my C6603 using xda app-developers app
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
Sent from my C6603 using xda premium
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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Click to collapse
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
Is it true that the update 4.3 will fix the camera issue for us who unlocked the bootloader without backing up our TA? can someone confirm please?!
Meni30 said:
Is it true that the update 4.3 will fix the camera issue for us who unlocked the bootloader without backing up our TA? can someone confirm please?!
Click to expand...
Click to collapse
Yes. You can safely unlock your bootloader now.
The Z1 is on the list of supported devices, and many people already confirmed that it works.
http://unlockbootloader.sonymobile.com/
Yes but i already unlocked my bootloader without backing up the TA just mentions above
Meni30 said:
Yes but i already unlocked my bootloader without backing up the TA just mentions above
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Click to collapse
It's not important if you are planning to stay on 4.3 or Kitkat (in the future)
Sent from my Z1
If you unlocked your bootloader without backing up your Ta partition previously then you're in luck because 4.3 will restore your camera functionality again
Meni30 said:
Yes but i already unlocked my bootloader without backing up the TA just mentions above
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Click to collapse
Yes, I've unlocked bootloader... Camera is working perfectly
Sent from my C6902 using Tapatalk
Hey guys is it safe to unlock the bootloader running 4.3 build #290
I dont quite understand the TA backup
Its my first time to own a non nexus device so im a little scared to unlock my bootloader with other things to do
Anyhelp will be much appreciated! Thank you!
Sent from my C6903 using xda app-developers app
You need to backup your ta partition for warranty reason and some xperia features to work.
First root your device then backup your ta-partition and then you can safely unlock your bootloader.
To root your device Out most likely have to downgrade your firmware, then root, then backup and then you can go ahead and unlock your bootloader with the latest version of flashtool
Gesendet von meinem C6903 mit Tapatalk
whisper13 said:
Hey guys is it safe to unlock the bootloader running 4.3 build #290
Click to expand...
Click to collapse
Yes.
whisper13 said:
I dont quite understand the TA backup
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Click to collapse
If you don't backup TA and DRM keys and you Unlock Bootlader you will never Relock your bootlader again, you will lost warranty forever and features like X-Reality, Bionz Processing and Bravia Engine.
whisper13 said:
Its my first time to own a non nexus device so im a little scared to unlock my bootloader with other things to do
Click to expand...
Click to collapse
Don't be, I remind you that Unlock Bootlader is necessary if you want to flash Custom Roms with Custom Kernels Only, if you will not do that, you easily can Root, Install Recovery and Custom Roms on Locked Bootlader.
Hi guys thanks for the quick response imma try the thing without unlocking thw bootloader and installing dual recovery
Sent from my C6903 using xda app-developers app
Hi guys, i have a big problem here... I have unlocked bootloader long time ago.. Yesterday, i did all of need to relock bootloader and restore the ta to could do the camera on full potentiality... but if i restore the ta don't work, then i can't use my camera without noise.. how i can resolve this problem? can i fix? thanks
I solved, can you delete the post
DavideSony said:
I solved, can you delete the post
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Tell us what you did?
motorazrv3 said:
Tell us what you did?
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I've erased internal memory with flashtool, installed rom with flashtool, unlocked and relocked bootloader and i restored the TA... After that i've installed mx rom. Now All worls