Related
I I'm interested is it possible to backup original DRM keys of Bravia Engine and other stuff and restore it later? or Use someone's untouched XS to restore the Bravia Engine?
MADNJPN said:
I I'm interested is it possible to backup original DRM keys of Bravia Engine and other stuff and restore it later? or Use someone's untouched XS to restore the Bravia Engine?
Click to expand...
Click to collapse
Why you don't read the OP of the good thread ? why ?
My bad sorry....
DON'T USE ANOTHER PHONES DRM KEYS. IT WILL HARD BRICK YOUR PHONE. Your Phone cannot repair after it.
draganz said:
DON'T USE ANOTHER PHONES DRM KEYS. IT WILL HARD BRICK YOUR PHONE. Your Phone cannot repair after it.
Click to expand...
Click to collapse
Great, thanks !!
so my drms are forever gone
I've searched and read for this but there seems to be mixed results. Some say you lose bravia engine, drm keys (Walkman app?), bionz processing, and obviously warranty but is it all these or just drm keys? is there a link that says what actually gets lost? I backed up the ta partition when unlocking so I'm not worried, I just wanted to know.
First hand experience here. I have an unlocked bootloader Z1 Compact.
1st X-Reality still works on unlock bootloader... See 2 screenshots below with Xreality turned on and off.
2nd download music info & movie info also works.
3rd clearaudio still works
4th x-loud still works
5th Track-ID still works
6th OTA update - not sure
7th Bionz - How should I tell? So far though I'm still impressed with the camera and haven't notice any difference.
i
RevokOne said:
I've searched and read for this but there seems to be mixed results. Some say you lose bravia engine, drm keys (Walkman app?), bionz processing, and obviously warranty but is it all these or just drm keys? is there a link that says what actually gets lost? I backed up the ta partition when unlocking so I'm not worried, I just wanted to know.
Click to expand...
Click to collapse
technically u will only lose ur personal data! contact, installed apps and ... (like factory reset)
everything else should work fine IF there s no problem in ROM like what happened at first for XZ1 devices.
on xperia z1 users were lost all camera functionality after unlocking bootloader. (but Sony fixed that problem)
:good:
Riyal said:
First hand experience here. I have an unlocked bootloader Z1 Compact.
1st X-Reality still works on unlock bootloader... See 2 screenshots below with Xreality turned on and off.
2nd download music info & movie info also works.
3rd clearaudio still works
4th x-loud still works
5th Track-ID still works
6th OTA update - not sure
7th Bionz - How should I tell? So far though I'm still impressed with the camera and haven't notice any difference.
Click to expand...
Click to collapse
Do you use any application that uses DRM? (e.g. paid video streaming service/TV)
@fdebef
I don't have any idea what apps use DRM on android. But for streaming service I use music unlimited & video unlimited of Sony. And till now I'm still using it. Also they said X-Reality & download music info uses DRM too and they're still working on my phone.
So generally speaking up to now so far I haven't notice any differences yet between having a locked and unlocked bootloader.
fdebef said:
Do you use any application that uses DRM? (e.g. paid video streaming service/TV)
Click to expand...
Click to collapse
@fdebef
Here's the DRM info...
Well looks like it's still there after unlocking bootloader.
Could you please post a screenshot from service menu > service tests > security ?
PS: XReality is only noticeable when you zoom in:
@pcpepik
All are active but there is [Unknown Error] under Marlin, WMLA and CKB, rest is [Key OK]
pcpepik said:
Could you please post a screenshot from service menu > service tests > security ?
PS: XReality is only noticeable when you zoom in:
Click to expand...
Click to collapse
@pcpepik
MARLIN, WMLA, CKB shows [Unknown Error][Active]
Others show [Key OK][Active]
Regardless though haven't encountered any DRM issues still. Also look at the screenshot I attached on my previous post. X-Reality is fully working hate it thought seems like it's over sharpening the edges of the objects in the image.
@Riyal
Oh, I'm sorry, didn't noticed the difference on your screenshots before (yes, one of the functions of XReality is that it adds sharpness: http://youtu.be/IaLIW2SY1P4?t=1m15s)
"Unknown Error" means deleted keys, though I dont know which exact apps/services relay on them too
pcpepik said:
@Riyal
Oh, I'm sorry, didn't noticed the difference on your screenshots before (yes, one of the functions of XReality is that it adds sharpness: http://youtu.be/IaLIW2SY1P4?t=1m15s)
"Unknown Error" means deleted keys, though I dont know which exact apps/services relay on them too
Click to expand...
Click to collapse
Yep... As long as I can use everything I don't mind though... Still I find it odd that the security test fails on marlin but it still shows up on DRM Info.
I's simple, "DRM Info" only shows which DRM authentication services are supported on your device, not if the keys, that are used for verification, are presented
(You have it stated in the description of that app on GP, btw)
Do you still get access to updates to Sony applications (e.g. Walkman, Album etc.) through the Update Centre after bootloader unlocking?
paul5425 said:
Do you still get access to updates to Sony applications (e.g. Walkman, Album etc.) through the Update Centre after bootloader unlocking?
Click to expand...
Click to collapse
well I updated them before unlocking so I cant check anymore. Im pretty sure you can find the updates on xda? maybe?
paul5425 said:
Do you still get access to updates to Sony applications (e.g. Walkman, Album etc.) through the Update Centre after bootloader unlocking?
Click to expand...
Click to collapse
To answer my own question, I got an update to the Movies application via Update Centre on the first Kitkat firmware with my bootloader unlocked. Therefore, application updates still work.
Unlike older Sony firmwares on other Sony phones, I have not noticed any feature which does not work on an unlocked bootloader, except for trying get a firmware update with PC Companion which will give you an error (and in that case you can just can use Flashtool to make your own FTF with the downloaded update and flash manually).
I am still not sure whether OTA system updates will still work via Update Centre or not (I was never patient enough to wait for one of these!)
Mirrorlink don't work for me with unlocked BL. It work if BL is locked (and TA restored)
paul5425 said:
Do you still get access to updates to Sony applications (e.g. Walkman, Album etc.) through the Update Centre after bootloader unlocking?
Click to expand...
Click to collapse
You will still receive updates after unlocking bootloader, you will stop receive updates if you install custom recovery
Sent from my LT25i using XDA Free mobile app
harrymason37 said:
You will still receive updates after unlocking bootloader, you will stop receive updates if you install custom recovery
Sent from my LT25i using XDA Free mobile app
Click to expand...
Click to collapse
Well, I have both an unlocked bootloader and custom recovery and am receiving updates to Sony applications. Just got an Album update today!
Same here, still updates through Update center.
I tried once installing custom recovery and it did stop updates on my phone. I tried manual installation of cwm.
How to unlock bootloader on Sony Xperia M5.
How to unlock bootloader
1.In http://developer.sonymobile.com/unlockbootloader/ choose Sony Xperia M2.
2.Submit Email
3.Submit IMEI
4.And unlock bootloader with intruction.
You get the code? Then we continue.
Download the latest version here or Flashtool http://www.flashtool.net/downloads.php
After installation, go the path C: \ Users \ username \ .flashTool \ registeredDevices here and create a folder with the code-name of your machine (you can find out if flashtool click on BLU and see where in the log are in line «Current device» for example, in line 09/045/2015 23:45:08 - INFO - Current device: C2104 - AB100C2DE3 - 1272-4136_R5B - 1269-5420_15.3.A.1.17 - WORLD-a_15.3.A.1.17 code machine will AB100C2DE3. Code which will write your name and location).
Later in this folder, create a text file and name it «ulcode» (without the quotes). Open, and in it write your unlock code, that you have on the site Sony. Save. Write code very carefully.
Now open flashtool and press the BLU. If everything is correct, in line you should write your code, pressing unlock. All should be ready to unlock.
Working on:E5633
I am not responsible for the broken device. Whatever you do, you do at your own risk
After unlocking bootloader will void the warranty
I forgot write. I get unlock code with my IMEI.
Interesting, I checked my Rooting Info as per the guide and it does say allowed.
I think giving Sony my IMEI will potentially void my warranty claims? Let me think about it.
ykphuah said:
Interesting, I checked my Rooting Info as per the guide and it does say allowed.
I think giving Sony my IMEI will potentially void my warranty claims? Let me think about it.
Click to expand...
Click to collapse
I think, in service centre check bootloader. If bootloader not unlocked, warranty is valid.
This method is working also on M5 dual, 6533
But the next step should be how to gain the root =)
---------- Post added at 03:19 PM ---------- Previous post was at 03:15 PM ----------
ykphuah said:
Interesting, I checked my Rooting Info as per the guide and it does say allowed.
I think giving Sony my IMEI will potentially void my warranty claims? Let me think about it.
Click to expand...
Click to collapse
Probably no.
You could reLock your device from flashtool simply, before visiting the service center.
vsm778 said:
This method is working also on M5 dual, 6533
But the next step should be how to gain the root =)
---------- Post added at 03:19 PM ---------- Previous post was at 03:15 PM ----------
Probably no.
You could reLock your device from flashtool simply, before visiting the service center.
Click to expand...
Click to collapse
Maybe 5633 ?
DukeMcWood said:
Maybe 5633 ?
Click to expand...
Click to collapse
yep, you're right, thanks
hello guys. when you unlock bootloader, can you than record 4k video in H.264 not H.265 and upload it to youtube?
vsm778 said:
This method is working also on M5 dual, 6533
Probably no.
You could reLock your device from flashtool simply, before visiting the service center.
Click to expand...
Click to collapse
Yes, you can relock your bootloader with Flash Tool but your DRM keys are gone forever, proprietary Sony features won't work even after relocking...
Also, it's veeeeeery unlikely, but they may check if your DRM keys still exist in Sony Service Center, in case they don't find them they'll know you've unlocked your bootloader...
How about port TWRP or CWM on Xperia M5 ? If we port recovery, we can get root.
mbc07 said:
Yes, you can relock your bootloader with Flash Tool but your DRM keys are gone forever, proprietary Sony features won't work even after relocking...
Also, it's veeeeeery unlikely, but they may check if your DRM keys still exist in Sony Service Center, in case they don't find them they'll know you've unlocked your bootloader...
Click to expand...
Click to collapse
I think there's a way to do it by backing up the TA partition. That's how Sony Xperia Z1 started. We root, unlock bootloader, backup TA and when we relock, we can actually restore the TA and DRM key
firdyRAY said:
I think there's a way to do it by backing up the TA partition. That's how Sony Xperia Z1 started. We root, unlock bootloader, backup TA and when we relock, we can actually restore the TA and DRM key
Click to expand...
Click to collapse
Err, no. To preserve your DRM keys you need a way to root without unlocking the bootloader (e.g. using an exploit), then you make a backup of your TA partition which will contain your DRM keys. If you unlocked your bootloader without a taking a TA backup first, your DRM keys are gone forever, even if you root your device afterwards and make a backup of your TA partition you won't have any keys at all because they already were wiped when you unlocked the bootloader, this applies to any Sony device.
In other words, currently there's no way of unlocking M5 bootloader and keeping your DRM keys, the hope is Xperia Z5 series or other flagship devices, they draw attention of many developers and like what happened with Z2 and Z3, for example, locked bootloader users probably gonna start a bounty or some kind of incentive for a way to root the locked variant of those flagships, eventually they'll find an exploit that probably can be ported to other devices with less development activity, like Xperia M4/M5.
It's the cat-and-mouse game, new flagships are released, devs will research possible exploits to those new flagship devices and when one is found it's very likely to work with most devices released at the same time (and that probably are unpatched too). Also, in Sony devices, if you have root in one firmware version, you'll automatically have root in any new firmware too (using tools like PRFCreator or dd Flasher)...
(as record, towelroot, developed originally for Galaxy S5, could be used in a lot of Xperia devices from that time, and the Xperia Z3 exploit was successfully ported to Xperia E3 as well and could probably be used in similar devices released around the same time like Xperia C3 and others)
Thank you! What's the chance of the M5 properly supported by custom rom, like FreeXperia and CyanogenMod?
optionalmgrr.la said:
Thank you! What's the chance of the M5 properly supported by custom rom, like FreeXperia and CyanogenMod?
Click to expand...
Click to collapse
I dont know. But, I want port flyme os from meizu devices.
camping here to get notified of root asap..
DukeMcWood said:
How to unlock bootloader on Sony Xperia M5.
How to unlock bootloader
Click to expand...
Click to collapse
Hello Duke,
On Sonymobile page for M5 it is showing that it is due to update to Android 6.0 Marshmellow which is coming soon.
So what do you think? I heard root isnt possible on Android 6.0 , and if rooted they will make it hard for the users.
Is it going to be well? or Rooting is history?
p.s - When I asked a youtube user for the bootloader for M5, he said " root method has been out for months, it would be great if you can put Google to use. no offense". Is this true? whats going on?
thank you.
Ketansa said:
Hello Duke,
On Sonymobile page for M5 it is showing that it is due to update to Android 6.0 Marshmellow which is coming soon.
So what do you think? I heard root isnt possible on Android 6.0 , and if rooted they will make it hard for the users.
Is it going to be well? or Rooting is history?
p.s - When I asked a youtube user for the bootloader for M5, he said " root method has been out for months, it would be great if you can put Google to use. no offense". Is this true? whats going on?
thank you.
Click to expand...
Click to collapse
I dont know about 6.0, because i dont have 6.0. In the near future i maybe port recovery. But i dont have original recovery.img from Xperia M5 for port.
mbc07 said:
Err, no. To preserve your DRM keys you need a way to root without unlocking the bootloader (e.g. using an exploit), then you make a backup of your TA partition which will contain your DRM keys. If you unlocked your bootloader without a taking a TA backup first, your DRM keys are gone forever, even if you root your device afterwards and make a backup of your TA partition you won't have any keys at all because they already were wiped when you unlocked the bootloader, this applies to any Sony device.
In other words, currently there's no way of unlocking M5 bootloader and keeping your DRM keys, the hope is Xperia Z5 series or other flagship devices, they draw attention of many developers and like what happened with Z2 and Z3, for example, locked bootloader users probably gonna start a bounty or some kind of incentive for a way to root the locked variant of those flagships, eventually they'll find an exploit that probably can be ported to other devices with less development activity, like Xperia M4/M5.
It's the cat-and-mouse game, new flagships are released, devs will research possible exploits to those new flagship devices and when one is found it's very likely to work with most devices released at the same time (and that probably are unpatched too). Also, in Sony devices, if you have root in one firmware version, you'll automatically have root in any new firmware too (using tools like PRFCreator or dd Flasher)...
(as record, towelroot, developed originally for Galaxy S5, could be used in a lot of Xperia devices from that time, and the Xperia Z3 exploit was successfully ported to Xperia E3 as well and could probably be used in similar devices released around the same time like Xperia C3 and others)
Click to expand...
Click to collapse
That's very lengthy but good to know. Thank you!
Ketansa said:
Hello Duke,
On Sonymobile page for M5 it is showing that it is due to update to Android 6.0 Marshmellow which is coming soon.
So what do you think? I heard root isnt possible on Android 6.0 , and if rooted they will make it hard for the users.
Is it going to be well? or Rooting is history?
p.s - When I asked a youtube user for the bootloader for M5, he said " root method has been out for months, it would be great if you can put Google to use. no offense". Is this true? whats going on?
thank you.
Click to expand...
Click to collapse
Well i personally don't trust any advice from any other source except for XDA just to be safe because we the internet have too many smart alecks who know nothing and try to act smart by being sarcastic. So i guess the safest thing to do is to check on XDA for root methods and go through the forum to see if it works for others
Ketansa said:
p.s - When I asked a youtube user for the bootloader for M5, he said " root method has been out for months, it would be great if you can put Google to use. no offense". Is this true? whats going on?
thank you.
Click to expand...
Click to collapse
I don't think he have a rooted M5. Before we get root, we must unlock the bootloader first, and this is the part that is not done yet.
firdyRAY said:
That's very lengthy but good to know. Thank you!
Well i personally don't trust any advice from any other source except for XDA just to be safe because we the internet have too many smart alecks who know nothing and try to act smart by being sarcastic. So i guess the safest thing to do is to check on XDA for root methods and go through the forum to see if it works for others
Click to expand...
Click to collapse
Hello Thank you,
Yes you are right, may be he is being Sarcastic or some kind of adware developer for corporates.
Looking in XDA forums.
A quick youtube guide would help...
aar22on said:
A quick youtube guide would help...
Click to expand...
Click to collapse
if by Quick guide you mean ONE CLICK ROOTING for z5p... then you are dreaming
this is the way i root my z5p
http://forum.xda-developers.com/z5-...ting-xperia-z5-z5p-variants-drm-keys-t3437902
a complete step by step GUIDE (preface) is
http://forum.xda-developers.com/z5-...ck-root-xperia-z5-premium-sony-stock-t3335974
STOCK MODIFIED KERNELS by @KbaB.BroS
http://forum.xda-developers.com/z5-premium/general/32-1-1-185-stock-modified-kernel-t3355369
YasuHamed said:
if by Quick guide you mean ONE CLICK ROOTING for z5p... then you are dreaming
this is the way i root my z5p
http://forum.xda-developers.com/z5-...ting-xperia-z5-z5p-variants-drm-keys-t3437902
a complete step by step GUIDE (preface) is
http://forum.xda-developers.com/z5-...ck-root-xperia-z5-premium-sony-stock-t3335974
STOCK MODIFIED KERNELS by @KbaB.BroS
http://forum.xda-developers.com/z5-premium/general/32-1-1-185-stock-modified-kernel-t3355369
Click to expand...
Click to collapse
Will this work with e6833
aar22on said:
Will this work with e6833
Click to expand...
Click to collapse
yess, i have ROOTED E6833 , running on MODIFIED KERNEL, (no drm keys)
and it working like a CHARM
love my phone!!!!!!
1. if you wana extract drm keys, the process is long and hard
2. if you wana just root and don't care about drm/ fido keys, then the process a bit simpler
i didnt extract drm keys! i am sad but not sorry. given any day i would have made deal with devil to have ROOT ACCESS in exchange for keys!
YasuHamed said:
yess, i have ROOTED E6833 , running on MODIFIED KERNEL, (no drm keys)
and it working like a CHARM
love my phone!!!!!!
1. if you wana extract drm keys, the process is long and hard
2. if you wana just root and don't care about drm/ fido keys, then the process a bit simpler
i didnt extract drm keys! i am sad but not sorry. given any day i would have made deal with devil to have ROOT ACCESS in exchange for keys!
Click to expand...
Click to collapse
Im sorry, but what's a drm key and how is it useful? It used to be so much easier with my oneplus
aar22on said:
Im sorry, but what's a drm key and how is it useful? It used to be so much easier with my oneplus
Click to expand...
Click to collapse
DRM (digital rights management) keys, by SONY CORPORATION stored in EVERY XPERIA in a allocated memory partition call "TRIM AREA" (TA)
FIDO keys are unique authentication keys by GOOGLE/YUBICO
(as per WIKI PEDIA) " Universal 2nd Factor (U2F) is an open authentication standard[1] that strengthens[2] and simplifies[3] two-factor authentication using specialized USB or NFC devices[4] based on similar security technology found in smart cards.[5] While initially developed by Google and Yubico, with contribution from NXP, the standard[6] is now hosted by the FIDO Alliance.[3][7]
the problem is to have root access on Z5P running on MM (kernal 3.10 or higher) you must FLASH the kernel. and flashing kernel can only be done on UNLOCKED BOOT LOADER. WHEN you unlock your bootloader, sony by default WIPE the following from INTERNEL MEMORY
1. all user data
2. photos /logs / apps
3. wipe TA partitions (so the all keys are GONE)
i never had oneplus, but all i know that SONY XPERIA falls in the devices which are the hardest to root.
YasuHamed said:
DRM (digital rights management) keys, by SONY CORPORATION stored in EVERY XPERIA in a allocated memory partition call "TRIM AREA" (TA)
FIDO keys are unique authentication keys by GOOGLE/YUBICO
(as per WIKI PEDIA) " Universal 2nd Factor (U2F) is an open authentication standard[1] that strengthens[2] and simplifies[3] two-factor authentication using specialized USB or NFC devices[4] based on similar security technology found in smart cards.[5] While initially developed by Google and Yubico, with contribution from NXP, the standard[6] is now hosted by the FIDO Alliance.[3][7]
the problem is to have root access on Z5P running on MM (kernal 3.10 or higher) you must FLASH the kernel. and flashing kernel can only be done on UNLOCKED BOOT LOADER. WHEN you unlock your bootloader, sony by default WIPE the following from INTERNEL MEMORY
1. all user data
2. photos /logs / apps
3. wipe TA partitions (so the all keys are GONE)
i never had oneplus, but all i know that SONY XPERIA falls in the devices which are the hardest to root.
Click to expand...
Click to collapse
You've been so helpful! Thank you
One last thing. What differences could you see after and before rooting it? Battery life wise. Speed. Everything? Just a general view.
aar22on said:
You've been so helpful! Thank you
One last thing. What differences could you see after and before rooting it? Battery life wise. Speed. Everything? Just a general view.
Click to expand...
Click to collapse
with ONLY having ROOT ACCESS, it will
1. will give you better control over your hardware, and you can change sensitive settings (CPU CLOCK etc) (not recommended though)
2. control over disabling removing XPERIA APPS ( whatsnew, software updater, lounge, xperia mobile transfers,
3. Control over other system apps locked by SONY ( GOOGLE PHOTOS, Hangouts, DRIVE, BOX,
4. Clean my Delvik Cache etc whenever i want
5. control battery draining apps and their wakeups by controlling apps like PURIFY
6. backup/restore KEYS (DRM/FIDO)
with having ROOT ACCESS + UNLOCKED BOOTLOADER
all above and
1. flash custom KERNELS having RECOVERY (something you can BOOT into bypassing Android)
http://www.howtogeek.com/wp-content/uploads/2016/01/twrp-backup.jpg
2. flash flashable .zip apps from recovery (custom made themes)
3. change android ECO SYSTEM ICONs etc via recovery
4. install CYNOGENMOD (if available, as of now there is no CM for Z5p)
5. Install MIUI (when available)
6. flash other MODIFIED ROMS
Hi all,
I have switched to Sony from Samsung and am new to flashing Sony's, I recently took the dive and unlocked my bootloader (Which i wish i didnt) but anyway I have managed to backup my TA keys and flash Kryptonian ROM and then restore my TA keys but how do i check that the DRM is restored? I checked X-reality in settings and it appears to be on but is there any other way to check it is working FULLY? I really need make sure X-reality and HD Music working fully
Also if i re-lock the bootloader do i get any functions back or would there be no difference as I have already restored the DRM keys?
bunglebp said:
Hi all,
I have switched to Sony from Samsung and am new to flashing Sony's, I recently took the dive and unlocked my bootloader (Which i wish i didnt) but anyway I have managed to backup my TA keys and flash Kryptonian ROM and then restore my TA keys but how do i check that the DRM is restored? I checked X-reality in settings and it appears to be on but is there any other way to check it is working FULLY? I really need make sure X-reality and HD Music working fully
Also if i re-lock the bootloader do i get any functions back or would there be no difference as I have already restored the DRM keys?
Click to expand...
Click to collapse
To find out if your keys are re-enabled after you flashed them go to the services menu (open your phone dialer and type *#*#service#*#*) and under service tests/security you should see the 3 keys on top "active" and the fido key "provisioned"...that means that all your keys are back...
You need a kernel that was repacked using Tobias tool by the way, don't know what kernel is included (if any included) with Kryptonian ROM, but in any case, the rom one or if you flashed one on your own, are in most case being repacked using that tool...
Also don't lose your TA backup under any circumstances, since the partition got wiped once you unlocked your bootloader, those keys are unique to your device only!
And you'll need to reflash them if you relock...
Since you have a TA backup and flashed your keys back your device is as before it was unlocked now with the extra bonus of root, so no need to wish that you didn't unlock
You're all good to go
Keys look all ok and Fido provisioned..I take it i dont need to re-lock the bootloader? many thanks again!
bunglebp said:
Keys look all ok and Fido provisioned..I take it i dont need to re-lock the bootloader? many thanks again!
Click to expand...
Click to collapse
Relocking is your own choice, but as it is now you can unleash the full potential of your phone...ie roms, kernels, Xposed etc...
Enjoy
Ok I thought i was getting somewhere with this BUT I have tried various ROMS and hit the same problem wach time and dont know what im doing ROM, I can get x-reality to work and download album art etc but Clearaudio / equaliser and surround sound settings do not work , i have tried clean flash of stock .305 rom and also various custom ROMs and doesnt make any difference, I have tried with restore of DRM keys also and all times they dont work, DSEE works but i want the equaliser etc to work also, can anyone please help!!!!
-DM- said:
To find out if your keys are re-enabled after you flashed them go to the services menu (open your phone dialer and type *#*#service#*#*) and under service tests/security you should see the 3 keys on top "active" and the fido key "provisioned"...that means that all your keys are back...
You need a kernel that was repacked using Tobias tool by the way, don't know what kernel is included (if any included) with Kryptonian ROM, but in any case, the rom one or if you flashed one on your own, are in most case being repacked using that tool...
Also don't lose your TA backup under any circumstances, since the partition got wiped once you unlocked your bootloader, those keys are unique to your device only!
And you'll need to reflash them if you relock...
Since you have a TA backup and flashed your keys back your device is as before it was unlocked now with the extra bonus of root, so no need to wish that you didn't unlock
You're all good to go
Click to expand...
Click to collapse
Thanks for your complete answer
I have done lots of things with my phone and never cared about this TA backup or drm keys and I don't have backup even
I flashed different build rooted them used xposed and lots of things and recently, overheating problem makes me crazy and I'm looking for a solution, if it's related to drm or these things that I have never done.
I checked my system service which u said and here I attached screenshot, what it means by error? And what I have to do to restore the drm? Is flashing the stock rom through flashtools make any difference?