Hi. I have dual sim (f8332) with stock android 8 . I want to unlock the bootloader but as i readed unlocking will remove DRM and make camera and other problems with no way back.To back up DRM(TA) i should downgrade to MM and then make back up. But for downgrade i should unlock bootloader first and it means loosing TA before downgrading. So no way to back up TA.
I want to unlock to patch the kernel with FSC thermal patch.
If i loose DRM is there any way to make camera and other things work correctly?
Related
I.e I want to do this
- Unlock bootloader and root
- Settle for poor camera
And then when the locked bootloader root is released,
- Relock bootloader
- Root
-Use good camera again
Is this possible?
Thanks
Typically with Xperia devices, if there is a root method found that doesn't require an unlocked bootloader, then you can backup the TA partition that contains the DRM keys. You can then restore the TA partition at a later time.
If you unlock your bootloader without a TA partition backup, I believe your DRM keys are lost forever.
No.
You can only get DRM keys back if you restore a TA backup. This backup can only be created once you have root, so without a locked bootloader root you are currently out of luck
I have got a Z3.If we will be able to root without unlock bootloader, i will restore my drm keys.And i will unlock my bootloader and flash cyanogenmod.And i will relock bootloader, restore my drm keys on cyanogenmod.Is it possible?Sorry for bad english?
Not possible. Only a Sony rom can take use of the DRM keys. Cyanogen doesn't use Sonys algorithms.
If we are able to root without unlocking BL, we can backup the TA partition with the DRM keys and you will be able to restore them but as dashrink said, custom Roms which are not based on Sony's official firmware won't be able to use them. But you could always go back to an official (based) firmware and restore the TA partition with the DRM keys.
Well, what can we do for camera's quality on custom rom's?
LeonidasTurk said:
I have got a Z3.If we will be able to root without unlock bootloader, i will restore my drm keys.And i will unlock my bootloader and flash cyanogenmod.And i will relock bootloader, restore my drm keys on cyanogenmod.Is it possible?Sorry for bad english?
Click to expand...
Click to collapse
Once you relock the bootloader CM will not boot.
You need to keep the bootloader unlocked for custom kernels to boot
gregbradley said:
Once you relock the bootloader CM will not boot.
You need to keep the bootloader unlocked for custom kernels to boot
Click to expand...
Click to collapse
What about Xposed? I don't have to change ROM, therefore can I install Xposed and then restore DRM keys? :fingers-crossed:
Could someone just confirm that I got this right:
-if I want reaver on my phone, I have to root it
-if I root it, I lose low light camera quality
So I have to choose between rooting the phone (for installing reaver, airmon and apps like that, I don't need anything else) and having great low-light camera?
Yep.
It was true 2 weeks ago.
Now that the root method for locked bootloader becomes avaiable so you won't lose the drm keys if you root..
freddy1991 said:
It was true 2 weeks ago.
Now that the root method for locked bootloader becomes avaiable so you won't lose the drm keys if you root..
Click to expand...
Click to collapse
What do you mean?
Is it already available or?....
http://forum.xda-developers.com/showthread.php?t=3011598
To clarify:
Unlocking the bootloader wipes your DRM keys and losing those is what reduces the camera quality (among other things)
Previously, the only way to get root was to unlock the bootloader.
It is now possible (via giefroot exploit) to get root WITHOUT unlocking the bootloader. This means your DRM keys are unaffected.
Once you have root you can actually backup your DRM keys so you are then free to unlock the bootloader if you want (for customer kernels and stuff) and restore your DRM keys afterwards
3Shirts said:
To clarify:
Unlocking the bootloader wipes your DRM keys and losing those is what reduces the camera quality (among other things)
Previously, the only way to get root was to unlock the bootloader.
It is now possible (via giefroot exploit) to get root WITHOUT unlocking the bootloader. This means your DRM keys are unaffected.
Once you have root you can actually backup your DRM keys so you are then free to unlock the bootloader if you want (for customer kernels and stuff) and restore your DRM keys afterwards
Click to expand...
Click to collapse
Yes, but people should also know that restoring your DRM keys relocks the bootloader.
So, you can either have an unlocked bootloader without DRM keys (You can boot a custom kernel so can run CM etc)
or
a locked bootloader with DRM keys. (You cannot boot a custom kernel so are stuck to stock firmware)
You cannot have an unlocked bootloader with DRM keys.
Ah, thanks for the clarification, I didn't realise that. I've not unlocked my BL as I'm happy with root on stock.
Do you need to unlock for a custom rom and, if so, can you unlock, install the rom, and then relock?
3Shirts said:
Ah, thanks for the clarification, I didn't realise that. I've not unlocked my BL as I'm happy with root on stock.
Do you need to unlock for a custom rom and, if so, can you unlock, install the rom, and then relock?
Click to expand...
Click to collapse
If the custom rom relies on a custom kernel then yes you have to unlock. Custom kernels can only boot on an unlocked bootloader.
However, once you relock (Or restore the TA partition containing the DRM keys, this also relocks the boot) then you cannot boot a custom kernel so you get a bootloop until you either unlock again or restore a stock rom.
Locked bootloader = stock kernel only (Custom kernels will cause a bootloop)
Unlocked bootloader = any modified kernel and stock kernel (No DRM keys)
Here's one last question before following this guide http://forum.xda-developers.com/crossdevice-dev/sony/giefroot-rooting-tool-cve-2014-4322-t3011598
If something happens to my phone and I need to get it serviced, is it possible to remove root? Will there be any traces of root, or nobody'll ever know it'd been rooted?
David47 said:
Here's one last question before following this guide http://forum.xda-developers.com/crossdevice-dev/sony/giefroot-rooting-tool-cve-2014-4322-t3011598
If something happens to my phone and I need to get it serviced, is it possible to remove root? Will there be any traces of root, or nobody'll ever know it'd been rooted?
Click to expand...
Click to collapse
Flash a FTF or force repair with pccompanion.
That's removes root and no one can tell.
Folks, I unlock the bootloader xperia d6633, now I can no longer update the device the following screen
Settings> About Phone> Software Update
I wanted to know how do I relock the bootloader, and able to upgrade to version 23.5.A.0.575
I'm a beginner, possibility ,possibility of video?
thanks
:confuso:
Edit: you can relock the bootloader without TA, there's an option in flash tool. DRM keys are still gone though
It is made clear that once you unlock the bootloader warranty is lost and many Sony software features such as those affecting camera quality are lost.
You will need to update manually with flashtool which will work fine with unlocked bootloader and is not very difficult.
http://www.flashtool.net/index.php
All this means is you need to get the firmware as an FTF file for your phone probably from here on XDA (make sure its for D6633) and then use this tool to update the phone. Google is your friend for a guide.
Edit: I probably need to tell you DO NOT try to flash a TA partition from anyone else or in flashtool (when there are tick boxes for "exclude" make sure you exclude .ta files) or you will hard brick the phone (dead as dead can be).
Ideally if you're going to unlock the bootloader you should root kitkat firmware and then take a TA partition backup to be able to restore DRM at a later time if you feel the need to.
Root here (other methods available, but I like this way):
http://forum.xda-developers.com/z3/general/guide-rootrecovery-how-to-root-install-t3017056
TA backup here:
http://forum.xda-developers.com/showthread.php?t=2292598
Dobsgw said:
Did you backup the TA partition? If you did then go ahead and restore it to your phone.
If that means nothing to you then you didn't and you cannot re-lock the boot loader.
It is made clear that once you unlock the bootloader warranty is lost and many Sony software features such as those affecting camera quality are lost.
You will need to update manually with flashtool which will work fine with unlocked bootloader and is not very difficult.
http://www.flashtool.net/index.php
All this means is you need to get the firmware as an FTF file for your phone probably from here on XDA (make sure its for D6633) and then use this tool to update the phone. Google is your friend for a guide.
Edit: I probably need to tell you DO NOT try to flash a TA partition from anyone else or in flashtool (when there are tick boxes for "exclude" make sure you exclude .ta files) or you will hard brick the phone (dead as dead can be).
Ideally if you're going to unlock the bootloader you should root kitkat firmware and then take a TA partition backup to be able to unofficially re-lock it at a later time if you feel the need to. Hopefully others will learn from this. Sorry :/
Root here (other methods available, but I like this way):
http://forum.xda-developers.com/z3/general/guide-rootrecovery-how-to-root-install-t3017056
TA backup here:
http://forum.xda-developers.com/showthread.php?t=2292598
Click to expand...
Click to collapse
Even if he has no TA backup he can still relock the bootloader.
Beetle84 said:
Even if he has no TA backup he can still relock the bootloader.
Click to expand...
Click to collapse
Really? I missed that bit I thought there was no way without TA
Okay I learnt something new
Don't just say it though explain how so he can do it!
(And so I can learn instead of passing wrong information again like an idiot )
Edit: found a tutorial. They explain relocking just after how to unlock
https://blog.unlockbase.com/sony-xperia-z3-unlocking-relocking-tutorial/
Unfortunately though this does not restore DRM keys (I wish though) so as said some software on stock rom won't work, but there is a flash able zip to enable most of it though
Hi guys, so i just bought a Z5 Dual E6683 online yesterday and it turns out to be a Commercial/review model with 32.0.A.5.19 firmware installed, and I'm planning to root it to restore my Titanium Backup.
There're 3 things that I want to ask,
1. Is it possible to root it and upgrade to MM but with DRM still intact?
2. If so then do I need to flash another ftf 1st or change kernel or anything?
3. If I flash another Lollipop ftf, does it erase my current DRM or no?
Nah you have to unlock BL to get Z5 rooted. You can try the DRM backup tools though.
Patched kernel is enough just for root
If you flash official FTF you won't lose DRM(you only lose it by unlocking BL), however, I don't think it is possible to flash back to LP
CyNoob said:
Nah you have to unlock BL to get Z5 rooted. You can try the DRM backup tools though.
Patched kernel is enough just for root
If you flash official FTF you won't lose DRM(you only lose it by unlocking BL), however, I don't think it is possible to flash back to LP
Click to expand...
Click to collapse
You mean there's no going back to Lollipop once you patch the kernel and upgrade to MM?
But to patch the kernel I need to unlock BL right?
So, in conclusion I need to flash official LL ftf 1st (any build (?)), then backup DRM and unlock the BL, patch the kernel, and finally upgrade to MM?
And do I need to backup my current firmware (32.0.A.5.19) ?
arceusxcv said:
You mean there's no going back to Lollipop once you patch the kernel and upgrade to MM?
But to patch the kernel I need to unlock BL right?
So, in conclusion I need to flash official LL ftf 1st (any build (?)), then backup DRM and unlock the BL, patch the kernel, and finally upgrade to MM?
And do I need to backup my current firmware (32.0.A.5.19) ?
Click to expand...
Click to collapse
You have to flash a Lollipop firm, then use this http://forum.xda-developers.com/crossdevice-dev/sony/iovyroot-temp-root-tool-t3349597 . Backup your DRM and then you are ready to open the bootloader, and flash a rom or root or do what you want.
You are on right firmware to root and proceed.
1. Is it possible to root it and upgrade to MM but with DRM still intact?
Ans. Yes, use this tool to back drm first from http://forum.xda-developers.com/crossdevice-dev/sony/iovyroot-temp-root-tool-t3349597 and then unlock bootloader and then download any MM firmware and flash. Then you need patched kernel to root your device from here http://forum.xda-developers.com/xpe...ot-automatic-repack-stock-kernel-dm-t3301605.
or I have already made for E6683 for the latest MM firmware here http://forum.xda-developers.com/xperia-z5/development/root-automatic-repack-stock-kernel-dm-t3301605
you can use as you wish.
2. If so then do I need to flash another ftf 1st or change kernel or anything?
Ans. as i said above.
3. If I flash another Lollipop ftf, does it erase my current DRM or no?
Ans. flashing doesn't erase anything but bootloader unlocking does. So answer is NO.