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Restoring DRM keys

Anyone already tried restoring DRM keys? Is there no problem with it? As z3 got root just a while ago, I'm still a bit afraid to loose all the stuff sony gives. I have successfully rooted and backed up, so the question is only about restoring them.

kuboweb said:
Anyone already tried restoring DRM keys? Is there no problem with it? As z3 got root just a while ago, Im still a bit afraid to loose all the stuff sony gives. I have successfully rooted and backed up, so the question is only about restoring them.
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No can do.
Google 'restore drm functionality' or find it here in the forums. Afaik when the drm keys are gone, they're gone. But you can get almost all of the functionality back (PlayStation -play everywhere or whatever it's called isn't there yet)

I have Rooted AND Backed up. I'm talking directly about restoring them. It is working on other Z devices, but is it on ours?

http://forum.xda-developers.com/showthread.php?t=2292598
Give it a go (or check with dev about support)

kuboweb said:
I have Rooted AND Backed up. Im talking directly about restoring them. It is working on other Z devices, but is it on ours?
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I've been keeping myself pretty informed on this...But haven't flashed it yet. I'm an ex-Samsung user with experience flashing tho.
Afaik the drm keys can not yet be restored for the Z3, just functionality. Older models, yes, but not ours yet.

sean is here. said:
I've been keeping myself pretty informed on this...But haven't flashed it yet. I'm an ex-Samsung user with experience flashing tho.
Afaik the drm keys can not yet be restored for the Z3, just functionality. Older models, yes, but not ours yet.
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Yes they can.
Use the same tool you used to back them up to restore them.

gregbradley said:
Yes they can.
Use the same tool you used to back them up to restore them.
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I really hope you're right, but via Google I don't find any mention of the z3. Only older models, and a discussion in the z3c forum.
I'd be thankful for a link to the thread or site where you found that it's possible.
Really. I hope you're right.

sean is here. said:
I really hope you're right, but via Google I don't find any mention of the z3. Only older models, and a discussion in the z3c forum.
I'd be thankful for a link to the thread or site where you found that it's possible.
Really. I hope you're right.
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1) Root the phone
2) Use the tool in the cross device development forum to backup the TA partition
3) Use the same tool to restore.

gregbradley said:
1) Root the phone
2) Use the tool in the cross device development forum to backup the TA partition
3) Use the same tool to restore.
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Ok. But the z3 isn't listed under compatible devices.
Are you telling me from first hand experience that it works, and the op needs to be updated to include the z3?

sean is here. said:
Ok. But the z3 isn't listed under compatible devices.
Are you telling me from first hand experience that it works, and the op needs to be updated to include the z3?
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I have not done it, but there are reports in that thread that it does. Why not give it a shot yourself.
Root on the Z3 only came in the last few days, you need to give the OP time to update....

I had done both backing up and restoring drm keys like 5-6 times on my z3.
It worked everytime.
So, don't worry.

[Q] Z3 drm keys / ta partition question

Hello guys,
I just want to be sure before losing warranty...
If i root my phone and backup DRM Keys / TA Partition, will i be able to restore everything (stock rom and all functions (x-reality and camera optimizations) + drm keys) after joining open device program and "installing" recovery mode (http://developer.sonymobile.com/201...for-a-range-of-unlocked-xperia-devices-video/) and/or installing Android M Preview (http://developer.sonymobile.com/201...-xperia-devices-in-sonys-open-device-program/), or will this "destroy" those functions?
And if i restore ta partitions, does it mean everything is like "factory state" and even regain my warranty?
Just want to be 100% sure
Greets Xorg

Nobody done this...? ?

Basically, you need to root your device before unlocking bootloader and then back up the TA partition.
After that, you can unlock bootloader and play around with some of the available custom roms like CM.
Then, if you flash stock sony firmware and restore the drm keys, I guess there would be no problem in claiming warranty unless you hard-bricked your device.
BTW, I had unlocked my bootloader and restored my drm keys for like 2-3 times and the process worked everytime (at least) for me.
Hope this helps.

freddy1991 said:
Basically, you need to root your device before unlocking bootloader and then back up the TA partition.
After that, you can unlock bootloader and play around with some of the available custom roms like CM.
Then, if you flash stock sony firmware and restore the drm keys, I guess there would be no problem in claiming warranty unless you hard-bricked your device.
BTW, I had unlocked my bootloader and restored my drm keys for like 2-3 times and the process worked everytime (at least) for me.
Hope this helps.
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Freddy can u explain this in detail and
In ur simple language..
That would be best. Because u know everthing abt this and u can make us understand..
Make a thread on this topic and it must have FAQs like the question asked in previous post.
Sent from my D6653 using Tapatalk

sandeep121sp121 said:
Freddy can u explain this in detail and
In ur simple language..
That would be best. Because u know everthing abt this and u can make us understand..
Make a thread on this topic and it must have FAQs like the question asked in previous post.
Sent from my D6653 using Tapatalk
Click to expand...
Click to collapse
Well, thanks for your kind suggestion.
But I'm not going to open a new thread on this because I believe there are already multiple threads on it.
Besides, you can PM me if you need some help regarding that rooting, backup, restoring drm keys.
I'll be more than happy to share you things I had learned.
Sent from my D6653

freddy1991 said:
Well, thanks for your kind suggestion.
But I'm not going to open a new thread on this because I believe there are already multiple threads on it.
Besides, you can PM me if you need some help regarding that rooting, backup, restoring drm keys.
I'll be more than happy to share you things I had learned.
Sent from my D6653
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Thanks buddy for your kind words.
After replacement of my handset i will root my phone and at that time i will definitely ask from you
Sent from my D6653 using Tapatalk

@freddy1991 join our telegram group via this link
https://telegram.me/joinchat/0241bc3c01ff2dd9232b258caac1ec74
Sent from my D6653 using Tapatalk

Anyway to restore DRM keys, if no backup?

Hi
From a long time ago (before I researched before I did anything) I unlocked my bootloader to get root right away, but I read somewhere that you could restore them without a backup now, is that true? I mean, get someones else or something like that
Thanks in advance

Faspaiso said:
Hi
From a long time ago (before I researched before I did anything) I unlocked my bootloader to get root right away, but I read somewhere that you could restore them without a backup now, is that true? I mean, get someones else or something like that
Thanks in advance
Click to expand...
Click to collapse
No, drm keys cannot be restored, do not attempt to use other people's keys, you will get a proper hard brick (bit a soft brick, a real hard brick that Cabot be recovered from). However, there are ways to restore partial functionality that relies on drm keys, but it is not 100% the same

gregbradley said:
No, drm keys cannot be restored, do not attempt to use other people's keys, you will get a proper hard brick (bit a soft brick, a real hard brick that Cabot be recovered from). However, there are ways to restore partial functionality that relies on drm keys, but it is not 100% the same
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Can you explain the second method further please?
Thanks in advance

i've found a way to restore drm keys, not just the functionnality : http://forum.xda-developers.com/z3/help/to-restore-lost-drm-keys-t3174005

unixseb said:
i've found a way to restore drm keys, not just the functionnality : http://forum.xda-developers.com/z3/help/to-restore-lost-drm-keys-t3174005
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That does not work.
Read here in the faq from Sony
http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/

gregbradley said:
That does not work.
Read here in the faq from Sony
http://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/
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i did, and it says it won't restore the drm keys, but now my camera is showing all the isos levels (was stucked at 800 with rooted rom) and the x-reality mode is working back, i'm able to take pictures at verry low light, so even if it don't restore the drm keys, it restore the functionnlities i've lost unlocking my bl, that's strang, i admit.

Unlock Bootloader Cam bug pressent ?

Hi, when I Unlock my Bootloader is the Camera bug still pressent ? Blur effect or what ever ?.... Thanks

you will get noisy camera and stuffs.
It is not a bug as Sony made it that way to prevent us from messing/porting their features I think.
TL;DR It will not be the same as before you unlock. You can: 1. deal with it 2.there is a way to restore drm keys on stock based roms so you will get your original camera stuffs back.

doresreturns said:
you will get noisy camera and stuffs.
It is not a bug as Sony made it that way to prevent us from messing/porting their features I think.
TL;DR It will not be the same as before you unlock. You can: 1. deal with it 2.there is a way to restore drm keys on stock based roms so you will get your original camera stuffs back.
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If you don't make backup you will restore...nothing

nedooo said:
If you don't make backup you will restore...nothing
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nah, I mean this (fake drm keys).
But of course if you are going to unlock, TA backup is a must if you still want to get back to 'out of a box' state. If you lost the original keys, you lost it forever. :crying:

doresreturns said:
nah, I mean this (fake drm keys).
But of course if you are going to unlock, TA backup is a must if you still want to get back to 'out of a box' state. If you lost the original keys, you lost it forever. :crying:
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Hi! I'm using Android 6 Concept now, with unlocked bootloader, but the camera sucks! It's possible to "fake" the bionz and stay in this room? for a good quality camera again? or I NEED to go with the stock sony and blocked bootloader ? I made my Backup TA before unlocking

rspy said:
Hi! I'm using Android 6 Concept now, with unlocked bootloader, but the camera sucks! It's possible to "fake" the bionz and stay in this room? for a good quality camera again? or I NEED to go with the stock sony and blocked bootloader ? I made my Backup TA before unlocking
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Hi,
I've never used that rom but maybe you can try it. I've tried on this rom, I believe it worked.
No proof but I don't see those pink noises so I was just assume it was working. Now i'm on RXSW rom.

doresreturns said:
Hi,
I've never used that rom but maybe you can try it. I've tried on this rom, I believe it worked.
No proof but I don't see those pink noises so I was just assume it was working. Now i'm on RXSW rom.
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Hi! Actually that is the rom that I'm using.. Is based on Android 6 concept now. Works really really well.. But I do miss the camera.. I'll try later thanks mate.. I hope I don't brick my phone lol
Sent from my D6603 using Tapatalk

about custom rom

hello guys, i'm just newbie in here i wanna ask u guy about change custom ROM does it affect our phone after we do it? and what 's a good think about it? could we switch back to original ROM ?
sorry my bad english
best regard

You need to open the bootloader so yeah it will affect the phone for sure. You should back back up your DRM keys brfore doing anything ( requires downgrade to Marshmallow).

See this Thread : Link

josephnero said:
You need to open the bootloader so yeah it will affect the phone for sure. You should back back up your DRM keys brfore doing anything ( requires downgrade to Marshmallow).
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what is kind of affect of it? please let me know about it
best regard

Chea Chandarin said:
what is kind of affect of it? please let me know about it
best regard
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Click to collapse
Well if you back up the DRM keys you can return everything back to normal whenever you want.
Now let me explain what DRM does.Sony phones lose some functions when you unlock the bootloader, like X-reality, camera noise reduction and etc. But don't worry as the custom roms have DRM patches so everything works. Just back up your DRM keys before doing anything. Btw unlocked bootloader can't install over the air updates but that ok as XZ has reached end of its update cycle. Happy to help if you have any questions

josephnero said:
Well if you back up the DRM keys you can return everything back to normal whenever you want.
Now let me explain what DRM does.Sony phones lose some functions when you unlock the bootloader, like X-reality, camera noise reduction and etc. But don't worry as the custom roms have DRM patches so everything works. Just back up your DRM keys before doing anything. Btw unlocked bootloader can't install over the air updates but that ok as XZ has reached end of its update cycle. Happy to help if you have any questions
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Is it possible to fix lost drm keys on every custom rom?

randisaaputra said:
Is it possible to fix lost drm keys on every custom rom?
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All custom roms based on stock firmware have DRM fix. Not sure about asop roms.

There is nothing to fix in AOSP because there are no Sony's or other OEM's features.