Related
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
Click to expand...
Click to collapse
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.
Click to expand...
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
Click to expand...
Click to collapse
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
Click to expand...
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?
Click to expand...
Click to collapse
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
Click to expand...
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
demon2112 said:
And.on a stock kernel with custom rom then?
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
It would interesst me too
gripfly said:
It would interesst me too
Click to expand...
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
Click to expand...
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,
I have the latest stable CM installed on my XZ, but I miss the Sony ROM, so I thought I'd revert back, though I'm a little unsure about how to so it. Before unlocking the boot loader and installing CM, I rooted the phone and made a backup. My question is;
Can I revert back by doing this:
1. Booting into flashmode, wiping the cache
2. Choose to reinstall my back-up file
3. Relock boot loader in flashtool (if necessary, it was locked when I backed up)
4. "Repair phone" in Sony update service
And then be back to how it was before?
Seek and you shall find. Or look at the stickies!
http://forum.xda-developers.com/showthread.php?t=2275632
Thank you!
But that doesn't really answer my question(s), and as they were very specific in nature, a simple "yes" would be sufficient, or a "no"m, accompanied by the aforementioned links. ^^
I'm new at this, so that post has a lot of information... That's why I asked in a separate post.
You can just flash stock rom with flashtool. You don't need to relock unless u backed up your ta partition and you want to have bravia engine and updates.
Sent from my Xperia Z using XDA Premium 4 mobile app.
Thanks, but can I do it the way I wrote above? Because if so, I will.
You can just flash stock rom with flashtool. You don't need to relock unless u backed up your ta partition and you want to have bravia engine and updates.
Sent from my Xperia Z using XDA Premium 4 mobile app.
Click to expand...
Click to collapse
I was wondering if it was possible somehow. I backed up the TA-Partition and I defenitly want Bravia Engine back. How should i do this?
Dreiundachzig said:
You can just flash stock rom with flashtool. You don't need to relock unless u backed up your ta partition and you want to have bravia engine and updates.
Sent from my Xperia Z using XDA Premium 4 mobile app.
Click to expand...
Click to collapse
Since it's so hard to get a reply regarding my original post, I'll ask it like this;
Can I flash an official sony rom (.ftf) over my CM10.2? If so, can I just relock the bootloader through flashtool as well to get back BE2?
The key to get BE 2 working again and have fully restored DRM keys is to restore the backup of the TA partition that you should have taken before unlocking the bootloader. Flashing stock FTF and just relocking bootloader won't do the job
Neither will a CWM restore.
Sent from my C6603 using xda app-developers app
I made the backup in cwm before I unlocked the bootloader, is that not usable to get it back? Is there any other way?
Unfortunately, CWM doesn't backup Trim Area (TA).In your case it seems Sony DRM keys are lost forever :thumbdown:
Sent from my C6603 using xda app-developers app
I see. Oh well. BTW, I unlocked the boot loader once before, but then I relocked it without making any changes. Did I lose BE then, or not before I installed CM? And what other than BE will I have lost? :/
roanmy said:
I see. Oh well. BTW, I unlocked the boot loader once before, but then I relocked it without making any changes. Did I lose BE then, or not before I installed CM? And what other than BE will I have lost? :/
Click to expand...
Click to collapse
Yes you loosed it. If you unlock you booloader you loose the keys. That is the reason why you have to make a TA backup before unlocking.
Your warranty you loose also but I think you should know that
What features are lost after unlocking bootloader?
Thanks in advance.
diego9016 said:
What features are lost after unlocking bootloader?
Thanks in advance.
Click to expand...
Click to collapse
If we are talking about 4.3 version, then none.
But - maybe if someone could confirm that X-Reality will stay after unlocking and using stock/stock based ROM.
Sent from my Z1
funky0308 said:
If we are talking about 4.3 version, then none.
But - maybe if someone could confirm that X-Reality will stay after unlocking and using stock/stock based ROM.
Sent from my Z1
Click to expand...
Click to collapse
Thanks for your response. I've already unlocked bootloader (Have a TA backup just in case), but I don't see any difference in the pictures. I have no idea if I still have X-Reality.
The BIONZ thing is lost after unlocking BL? Is there a way to check it?
diego9016 said:
Thanks for your response. I've already unlocked bootloader (Have a TA backup just in case), but I don't see any difference in the pictures. I have no idea if I still have X-Reality.
The BIONZ thing is lost after unlocking BL? Is there a way to check it?
Click to expand...
Click to collapse
BIONZ thing?
I'm sure if you are on stock ROM - you still have X-Reality engine on.
Sent from my Z1
funky0308 said:
BIONZ thing?
I'm sure if you are on stock ROM - you still have X-Reality engine on.
Sent from my Z1
Click to expand...
Click to collapse
BIONZ image processor... I read somewhere that maybe that feature is lost after unlocking BL.
diego9016 said:
BIONZ image processor... I read somewhere that maybe that feature is lost after unlocking BL.
Click to expand...
Click to collapse
I'm not sure but I know that Bravia Engine was lost when we unlocked bootloader on older Xperia devices...
So it could be...
Sent from my Z1
Yes, X-Reality doesn't work after unlocking BL.
MohammadAG said:
Yes, X-Reality doesn't work after unlocking BL.
Click to expand...
Click to collapse
I never saw any difference keeping x reality on and off, so it dosnt matter to me.
Hey, if you unlock and dont see any thing strange, be happy. Dont go search for missing things
Many users saying about issues when unlock BL even on 4.3. When we will unlock BL and do not missing anything?
I think we have to wait new year when custom roms will find the way.
eclyptos said:
Many users saying about issues when unlock BL even on 4.3. When we will unlock BL and do not missing anything?
I think we have to wait new year when custom roms will find the way.
Click to expand...
Click to collapse
Things like X-Reality aren't easily replicated, otherwise they won't need to wipe the related keys. However, at certain times, I found the over-sharpening of X-Reality bothersome, and I switched it off.
Anyway, I don't see any issues with keeping my bootloader unlocked. I really don't miss anything, and I doubt most people would notice something's missing till they're told about it.
MohammadAG said:
Things like X-Reality aren't easily replicated, otherwise they won't need to wipe the related keys. However, at certain times, I found the over-sharpening of X-Reality bothersome, and I switched it off.
Anyway, I don't see any issues with keeping my bootloader unlocked. I really don't miss anything, and I doubt most people would notice something's missing till they're told about it.
Click to expand...
Click to collapse
Yep, I think is not a big deal X-Reality Engine so it's true when we Unlock Bootloader on 4.3 we lose BIONZ Processing and X-Reality Engine?
If yes, what consequences we can have on device?
eclyptos said:
Yep, I think is not a big deal X-Reality Engine so it's true when we Unlock Bootloader on 4.3 we lose BIONZ Processing and X-Reality Engine?
If yes, what consequences we can have on device?
Click to expand...
Click to collapse
Honestly, my best advice is to backup TA and unlock, see for yourself, if you're not bothered by anything then you haven't lost anything you'd miss.
Sent from my Sony Xperia Z1 using Taptalk
MohammadAG said:
Honestly, my best advice is to backup TA and unlock, see for yourself, if you're not bothered by anything then you haven't lost anything you'd miss.
Click to expand...
Click to collapse
I will unlock now, but I already updated to 4.3 and I can't root my phone with locked BL to backup TA. I don't care about warranty, I brought the phone with intention to come on XDA an flash, so I was aware about losing warranty.
Even if I backup TA I will lose BIONZ and X-Reality anyway so backup TA to me don't make sense.
I am just worry do not lost something what I will need further time and I referring about the functionality of the device.
eclyptos said:
I will unlock now, but I already updated to 4.3 and I can't root my phone with locked BL to backup TA. I don't care about warranty, I brought the phone with intention to come on XDA an flash, so I was aware about losing warranty.
Even if I backup TA I will lose BIONZ and X-Reality anyway so backup TA to me don't make sense.
I am just worry do not lost something what I will need further time and I referring about the functionality of the device.
Click to expand...
Click to collapse
Downgrade to 534 and backup TA, then upgrade again. Just backup TA in any way possible.
Restoring TA relocks the bootloader and restores X-Reality and the likes.
Sent from my Sony Xperia Z1 using Taptalk
MohammadAG said:
Downgrade to 534 and backup TA, then upgrade again. Just backup TA in any way possible.
Restoring TA relocks the bootloader and restores X-Reality and the likes.
Sent from my Sony Xperia Z1 using Taptalk
Click to expand...
Click to collapse
Why i need to downgrde to 534 and backup TA?, Can i upgrade to the 4.3 and backup?. difference between two methods
MohammadAG said:
Downgrade to 534 and backup TA, then upgrade again. Just backup TA in any way possible.
Restoring TA relocks the bootloader and restores X-Reality and the likes.
Sent from my Sony Xperia Z1 using Taptalk
Click to expand...
Click to collapse
Really? Somply using the TA. Backup program to restore relock the bootloader? No need to use flashtool or adb first?
Btw in older phones BE 2 stopped working for pictures but kept working for videos on unlocked bootloaders
Sent from my C6903 using Tapatalk
shteren said:
Really? Somply using the TA. Backup program to restore relock the bootloader? No need to use flashtool or adb first?
Btw in older phones BE 2 stopped working for pictures but kept working for videos on unlocked bootloaders
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
I don't know of any programs, I simply use dd to backup and restore, but I'm guessing any program that does that is simply a script that uses dd.
I never saw the advantages of X-Reality in photos, only saw it in videos, and I can't see it anymore.
Restoring the TA doesn't need flashtool, adb is just to make terminal access easier and transfer the backup, technically you could just use a terminal emulator on the Play Store and upload the backup to Google Drive without using a PC. You just need to be rooted.
MohammadAG said:
Restoring TA relocks the bootloader and restores X-Reality and the likes.
Click to expand...
Click to collapse
Restoring TA that mean restoring the phone to factory state, that mean I can't do that if I am on Custom Rom with Custom Kernel.
Factory state I will need just for warranty or I have to choose what I want, Custom Rom with Custom Kernels without X-Reality and BIONZ or Custom Rom with Stock Kernel with X-Reality and BIONZ?
What you people will do?
eclyptos said:
Even if I backup TA I will lose BIONZ and X-Reality anyway so backup TA to me don't make sense.
Click to expand...
Click to collapse
What is this you go on about BIONZ?
What, your camera now takes raw photos or what?
How does your camera work if your image processor supposedly doesn't?
If you manage to flash your way to a custom kernel and rom, how hard is it to go back to stock and then shove your DRM keys back in there?
benziii said:
What is this you go on about BIONZ?
What, your camera now takes raw photos or what?
How does your camera work if your image processor supposedly doesn't?
If you manage to flash your way to a custom kernel and rom, how hard is it to go back to stock and then shove your DRM keys back in there?
Click to expand...
Click to collapse
BIONZ processing and X-Reality maybe do not influence much the functionality. I am just careful do not lose some pieces which I will need in the future but the only thing what people are saying is that I need the DRM for restore to stock.
Like I said, why I should go back to stock? Just for warranty, who cares! In this DRM keys is something what I have to keep?
Sent from my C6903 using xda app-developers app
Nuwan75n said:
Sent from my C6903 using xda app-developers app
Click to expand...
Click to collapse
it is possible to lock it without a backup, is your camera not working anymore ?
You can try flashtool, BLU option tries to relock it if it's unlocked, theres a good chance you will brick your device!
Have fun
Sent from my C6903 using Tapatalk
AntiDroid said:
it is possible to lock it without a backup, is your camera not working anymore ?
Click to expand...
Click to collapse
Are you sure this is good and/or informative advice? I thought a locked bootloader not finding valid keys in the TA will refuse to ever function usefully again - no boot, no fastboot, no flashmode, nothing, totally bricked, and no way to convert it back to unlocked and get your phone back.
I would like to know if I am wrong about any of that. And... it seems that I was:
** Correction - it is Ok to relock the bootloader without having the pre-unlock data in the TA partition
** Flashing in data from any other TA partition (some other phone) seems certain to brick the phone though.
n0bleINtP said:
Are you sure this is good and/or informative advice? I thought a locked bootloader not finding valid keys in the TA will refuse to ever function usefully again - no boot, no fastboot, no flashmode, nothing, totally bricked, and no way to convert it back to unlocked and get your phone back.
I would like to know if I am wrong about any of that.
Click to expand...
Click to collapse
I've never read about those damages but I read things like the known camera bug.
I unlocked my Z1 on .290 - the Sony release which fixed the problem (4.3). I flashed a Recovery and rooted it with it and my device is working like it was with a "untouched" ROM.
That's all I know.
We could wait for a dev to answer deeper questions.
AntiDroid said:
I unlocked my Z1 on .290 - the Sony release which fixed the problem (4.3).
Click to expand...
Click to collapse
Yes this absolutely fine and is what I did with my Z1, ie do not unlock until after the 290 update is applied - you will see that advice on the Sony unlock website. However if you want a TA backup you need to do that before unlocking as the unlock process will wipe the keys, and you also need root in order to make that copy. (let me know if I am wrong about that)
My process was to root on earlier firmware, copy the TA, update to .290, then unlock. After unlocking full root on .290 is easy with a custom kernel and everything is good: unlocked, rooted *and* working camera.
But you *will* need a copy of the pre-unlock TA partition to regain any of the functions that use the DRM keys if you decide to relock the bootloader later.
It is impossible to get the DRM keys back, and there is no gain from relocking without them, all you're doing is locking down the bootloader without enabling BIONZ, etc, but you can certainly run a stock system if you want.
n0bleINtP said:
Yes this absolutely fine and is what I did with my Z1, ie do not unlock until after the 290 update is applied - you will see that advice on the Sony unlock website. However if you want a TA backup you need to do that before unlocking as the unlock process will wipe the keys, and you also need root in order to make that copy. (let me know if I am wrong about that)
My process was to root on earlier firmware, copy the TA, update to .290, then unlock. After unlocking full root on .290 is easy with a custom kernel and everything is good: unlocked, rooted *and* working camera.
But you *will* need a copy of the pre-unlock TA partition to regain any of the functions that use the DRM keys if you decide to relock the bootloader later.
Click to expand...
Click to collapse
Hello, yesterday I downgraded to rooteable 4.2.2 rom in order to backup TA partition. Once I had backup, I updated to 4.3 (290) and unlocked bootloader, then flashed recovery. With recovery was easy to flash superSu. Now I have "stock" rom with root and unlocked bootloader, but I realized that x-reality wasn't warking anymore (because of the DRM keys loss).
I tried to recover TA partition, but I caused a soft-brick, wich I only could solve flashing a 290 ftf through flashtool, but I lost root. My question is: It is possible to have root and DRM keys (TA partition restored)??
Thank you very much.
yanbee said:
Hello, yesterday I downgraded to rooteable 4.2.2 rom in order to backup TA partition. Once I had backup, I updated to 4.3 (290) and unlocked bootloader, then flashed recovery. With recovery was easy to flash superSu. Now I have "stock" rom with root and unlocked bootloader, but I realized that x-reality wasn't warking anymore (because of the DRM keys loss).
I tried to recover TA partition, but I caused a soft-brick, wich I only could solve flashing a 290 ftf through flashtool, but I lost root. My question is: It is possible to have root and DRM keys (TA partition restored)??
Thank you very much.
Click to expand...
Click to collapse
No, never.
Just2Cause said:
No, never.
Click to expand...
Click to collapse
So, apart from losing x-reality and some Sony apps functionalities (which I dont care). Do you lose something else? I heard about losing bionz processor, but camera still works, then I dont know how far this is true.
The incompatibility problem of root and restored TA partition, is because flashing recovery (which modifies kernel) or supersu.apk it self?
Thank you VERY much!
You loose bionz, but not x-reality. I unlocked my bootloader and I have x-relity enabled.
Some ROMs won't have working camera, for example: android 4.4 KitKat ported from xperia z ultra GPe, and some other ROMs.
Just2Cause said:
You loose bionz, but not x-reality. I unlocked my bootloader and I have x-relity enabled.
Some ROMs won't have working camera, for example: android 4.4 KitKat ported from xperia z ultra GPe, and some other ROMs.
Click to expand...
Click to collapse
I can see that the x-reality option is still on menu, and you can enable/disable it, but it doesn't work. Before, I could see in the first second of picture showing how x-reality improves the image (its an effect that can be seen with the naked eye), this is not happening now. By the way, its for sure that bionz stop working? How could I take pictures without it?
Thank you
yanbee said:
I can see that the x-reality option is still on menu, and you can enable/disable it, but it doesn't work. Before, I could see in the first second of picture showing how x-reality improves the image (its an effect that can be seen with the naked eye), this is not happening now. By the way, its for sure that bionz stop working? How could I take pictures without it?
Thank you
Click to expand...
Click to collapse
Not sure about bionz, but I guessed it as I had the x-relity option enabled. I can't tell if it works or not as I don't have camera (I'm using ported 4.4)
It would be nice of someone confirmed it.
Correct me if i am wrong.
Bionz is a service which improves the pictures after a shot, isn't it ?
Bionz and X-Reality are things u can't detect that easy like "oh that effect is from X-Reality" or something else.
I thought the main reason for not working cameras on other roms was that the dev's didn't apply those 4.3 changes :S
AntiDroid said:
Correct me if i am wrong.
Bionz is a service which improves the pictures after a shot, isn't it ?
Bionz and X-Reality are things u can't detect that easy like "oh that effect is from X-Reality" or something else.
I thought the main reason for not working cameras on other roms was that the dev's didn't apply those 4.3 changes :S
Click to expand...
Click to collapse
Bionz it's a image processor that includes xperia Z1, it process the pictures taken instead the cpu. I dont know if it's easy to detect if it's working or not. But in the case of x-reallity it's very simple, when you open a picture in Sony gallery app, you can see how the picture "improves" quality in the first second. It is no so evident in all pictures, but can be detected by a naked eye, as I do.
My only doubt is about bionz processor, I already know that I loss x-reality. But I want to be SURE if bionz processing is also lost. I want to have full root (with unlocked bootloader), and have bionz enabled. I dont care x-reality or Sony apps.
Thank you very much
Just2Cause said:
No, never.
Click to expand...
Click to collapse
Not true. If you have a TA backup, install .290, unlock bootloader, install a recovery, root, reflash stock boot partition, restore TA partition, you will end up with a booting, rooted, .290 installation.
Rekoil said:
Not true. If you have a TA backup, install .290, unlock bootloader, install a recovery, root, reflash stock boot partition, restore TA partition, you will end up with a booting, rooted, .290 installation.
Click to expand...
Click to collapse
Are you sure about that? :fingers-crossed:
Just2Cause said:
Are you sure about that? :fingers-crossed:
Click to expand...
Click to collapse
I did that and it worked
Sent from my iPad Air using Tapatalk
Rekoil said:
Not true. If you have a TA backup, install .290, unlock bootloader, install a recovery, root, reflash stock boot partition, restore TA partition, you will end up with a booting, rooted, .290 installation.
Click to expand...
Click to collapse
jjpro45 said:
I did that and it worked
Tapatalk
Click to expand...
Click to collapse
Thank you VERY much!!! Could someone tell me how to reflash boot partition only?? The TA partition which I must restore, could be restored in 290 if backups comes from 534?
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...
Click to expand...
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
Click to expand...
Click to collapse
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!
Sent from my E6533 using XDA-Developers mobile app
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
Click to expand...
Click to collapse
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.