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[RESOLVED] New to Z5, how to FIX DRM

Hello everyone,
I'm here cause I'm going from a z3 Bl unlocked, custorm ROM and other to an z5 bl unlocked cause gived by a sony employee who repair phone.
But he give me it with an unlocked bootloader, then I don't have the DRM.
I don't want to make some bad things like with my z3 who have some freeze, reboot or other things.
The z5 is in 6.0, is it possible to get back the DRM to get back fingerprints and all other stuff like photo treatment,.... ?
Also, there is a operator rom with just some apps installed that I desinstalled, is it going wrong with next maj or not?
Thanks for your answers
Edit: I think that this unallow me to cast with a chrome cast?

IF the previous owner backuped the TA partition/DRM keys before unlocking the bootloader, it's possible he still have these backups in his possession OR possible he restored the TA partition after installation a custom ROM, TWRP, rooting, etc.
If you can, open the dialer and type *#*#7378423#*#*, then go to "Services tests" -> "Security"
You should see two [Active] occurences, OTP_LOCK_STATUS: LOCKED / FIDO_KEYS: Provisioned
That means the DRM keys are active and that's what you want. If it's the case, I would strongly suggest you to temporarely downgrade the phone to an older Lollipop firmware and backup them in a safe place (thre's many guides on this forum)
Personally, I wouldn't buy a second-hand Z5 that doesn't have its DRM keys intact anymore, or at least a proper backup of these keys.

I thinks it's good I have this :
Marlin key ok active
Widevine key ok active
Ckb key ok active
Huk:...
Prodid_aid:0004
Otp lock config 0155
Otp lock status locked
Auth enable 07
Device id:...
Fido keys provisioned
Factory reset reason : not found
Then I have just to find a tuto who downgrade and backup drm?
Edit: I just pay a new screen cause he was broken and old owner give it to me ^^

This is bootloader and DRM service menu
If it's more helpfull
imgur.com/a/OYukJ
checked with fastboot: my bootloader is locked
Sorry spam protection don't allow me to post img
Thanks

Dragonnblack said:
This is bootloader and DRM service menu
If it's more helpfull
imgur.com/a/OYukJ
checked with fastboot: my bootloader is locked
Sorry spam protection don't allow me to post img
Thanks
Click to expand...
Click to collapse
Seems that all DRM keys are intact, you may follow these instructions to backup your TA partition :
http://forum.xda-developers.com/cros...-tool-t3349597
Try to flash stock firmware and perform wipe on it so you could test all are working normally.

Thanks redjge,
But after put a Sim card into the phone everythings seem okay

DRM

Ok sorry for idiotic question, but what are DRM and why do i need them? i backed them up on start before rooting, now i have tested few roms and stuff. But do i need to restore DRM for better photos or something? Or os not possible to restore DRM on costum rom. Its my first sony in years

I don't know that much on DRM and Development, I'm just a passionate guy, so what am gonna say is perhaps wrong so dont blame me
DRM (Digital Right Management) are keys used to "protect" the phone.
Those keys are sets by the firm (In this case SONY)
To enable some functions on the phone.
When you buy a new phone, DRM are already set up and everything works fine, but some phone functions require those keys to work (on the Z5 x-realty photos, bravia engine display needs them to work) .
If you unlock your bootloader, you delete by the same time those key located on the TA partition and so, X reality and Bravia cease to work,
I know that on the Samsung devices the fingerprint sensor is completely disabled if you lost DRM I don't know if it's the same on the Z5.
Once deleted you can't recover them, they're lost for ever, even if you relock your bootloader !
Actually I don't know if you can recover the keys if you have backed up your TA partition, but according to what I've read you can't, BUT you can emulate them.
DRM aren't only for phone, you can find some in video games protections, computer, or that kind of stuff

So is missing bravia noticable on phone?

Actually I can't answer, I'm waiting for a locked bootloader root in order to keep the originals DRM.
Guess you should ask someone who has unlocked his bootloader and lost DRM to see if there are some noticeable changes?

I don't see a big difference regarding X-Reality, but where there's a big difference is in the photos taken without the DRM keys.
If you want to root your phone and keep the DRM keys, read this: http://twigstechtips.blogspot.ch/2016/04/sony-z5-compact-root-without-losing-ta.html?m=1
I'm currently trying to get the TA partition restored on a stock non-rooted ROM

Ivory flaw is only available on lollipop?
I'm f*cked then I'm running Marshmallow and I don't want to flash a new Rom wiping everything :crying:
Thanks but I'll try later if there no root for Locked BL on Marshmallow

Nayibmc said:
I don't see a big difference regarding X-Reality, but where there's a big difference is in the photos taken without the DRM keys.
If you want to root your phone and keep the DRM keys, read this: http://twigstechtips.blogspot.ch/2016/04/sony-z5-compact-root-without-losing-ta.html?m=1
I'm currently trying to get the TA partition restored on a stock non-rooted ROM
Click to expand...
Click to collapse
keep me posted, i have TA partition backuped, it would be nice if i could restore DRM keys and use stock rom

[noob question] unlocking the bootloader

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!

Is it necessary to backup DRM keys before unlocking HTC device?

So do HTC devices also have DRM keys in the TA (trim area) partition that must be backed up before unlocking the bootloader ?
Similar to Sony devices? Thanks for the answer.

lebigmac said:
So do HTC devices also have DRM keys in the TA (trim area) partition that must be backed up before unlocking the bootloader ?
Similar to Sony devices? Thanks for the answer.
Click to expand...
Click to collapse
Nop

What is it ? Never heard of it drm keys what are those

Aftab_khatri said:
What is it ? Never heard of it drm keys what are those
Click to expand...
Click to collapse
DRM keys in Sony Xperia smartphones are located in the TA (trim area) partition of the phone.
When unlocking the bootloader, the TA partition gets erased and you lose your phone's unique DRM keys forever unless you backed it up first.
Without the DRM keys you lose a lot of special functionality such as special camera features like BionZ, built-in noise-cancelling, X-Reality engine, Bravia engine, Track ID, Miracast etc...

lebigmac said:
DRM keys in Sony Xperia smartphones are located in the TA (trim area) partition of the phone.
When unlocking the bootloader, the TA partition gets erased and you lose your phone's unique DRM keys forever unless you backed it up first.
Without the DRM keys you lose a lot of special functionality such as special camera features like BionZ, built-in noise-cancelling, X-Reality engine, Bravia engine, Track ID, Miracast etc...
Click to expand...
Click to collapse
thanks alot mate

Galactus said:
Nop
Click to expand...
Click to collapse
Are you 100% sure about that? On HTCDev bootloader unlock website it says:
Some content on your device may also be invalidated and cannot be accessed any more because of invalid DRM security keys. This includes content that you may have purchased through a 3rd party vendor and through HTC. Furthermore, although you will still be able to receive updates to your device via FOTA (“firmware over the air”), we do not guarantee that updating your device via FOTA will not render your device unusable. Please understand that you will not be able to return your device to the original state and going forward your device may not be held covered under the warranty for all claims resulting from the unlocking of the bootloader. HTC bears no responsibility if your device is no longer usable afterwards.
Click to expand...
Click to collapse

lebigmac said:
Are you 100% sure about that? On HTCDev bootloader unlock website it says:
Click to expand...
Click to collapse
HTC devices might have the DRM keys and that partition, but when unlocking you won't lose anything, so you're good to go with unlocking BL and do custom stuff

lebigmac said:
DRM keys in Sony Xperia smartphones are located in the TA (trim area) partition of the phone.
When unlocking the bootloader, the TA partition gets erased and you lose your phone's unique DRM keys forever unless you backed it up first.
Without the DRM keys you lose a lot of special functionality such as special camera features like BionZ, built-in noise-cancelling, X-Reality engine, Bravia engine, Track ID, Miracast etc...
Click to expand...
Click to collapse
but if my ROM it rooted i can fix this by root? no (i use sony) im searching for answer over the net
bottom point ill stil have my camera (im gonna use custom stock base kernel) maybe lionage ROM later on

Superrman said:
but if my ROM it rooted i can fix this by root? no (i use sony) im searching for answer over the net
bottom point ill stil have my camera (im gonna use custom stock base kernel) maybe lionage ROM later on
Click to expand...
Click to collapse
if you use sony, got to sony forum, afaik there is no real fix for that. there is some work, you can check it in xz premium forum

Unlocked the BL without backing up TA Partition on my XA2 ULTRA..! Any suggestions ?

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.
Click to expand...
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.