Database Info

[Q] Xperia SP 4.3.3 Root Keeping DRM Keys

I have an Xperia SP currently running 4.1.2 rooted, bootloader locked.
My aim is to upgrade to 4.3.3 and root, for which i will have to unlock the bootloader. To do so I need a TA partition, for which again, root is required.
So, my question is that is it okay if I take a TA Backup now [in 4.1.2] and then upgrade OTA and unlock bootloader, root and then restore the 4.1.2 TA backup onto 4.3.3 in order to restore DRM keys and Relock the bootloader?
Has anyone done this?
is it safe?

[Q] Stock ROM restore the TA partition?

Hi, I have a Sony Xperia Z3 D6643 (sigle-chip with TV)
I unlock bootloader with not a backup a TA partition =/ (I had make a ****)
If I restore a Stock Rom with TA partition, is it restored?
Sorry my English. I from Brazil.

afonsoft said:
Hi, I have a Sony Xperia Z3 D6643 (sigle-chip with TV)
I unlock bootloader with not a backup a TA partition =/ (I had make a ****)
If I restore a Stock Rom with TA partition, is it restored?
Sorry my English. I from Brazil.
Click to expand...
Click to collapse
No
Unless you made a backup before unlocking the bootloader you have lost your DRM keys forever.

Relocking the bootloader and Re-flashing a new ROM (even from other countries) wiping all (data, dalvik, etc) worked for me, tried this on my Xperia SP and Xperia Z2. Because the new TA partition is included on most firmwares...
Try to flash a 4.4.2 ROM (or any locked bootloader rootable), to be able to backup your new TA partition...
OR
Try this method :
http://forum.xda-developers.com/showthread.php?t=2930672
Read the thread carefully.

stayawake said:
Relocking the bootloader and Re-flashing a new ROM (even from other countries) wiping all (data, dalvik, etc) worked for me, tried this on my Xperia SP and Xperia Z2. Because the new TA partition is included on most firmwares...
Try to flash a 4.4.2 ROM (or any locked bootloader rootable), to be able to backup your new TA partition...
OR
Try this method :
http://forum.xda-developers.com/showthread.php?t=2930672
Read the thread carefully.
Click to expand...
Click to collapse
Incorrect.
The DRM keys are NOT included in any FTF. If they are lost they are gone for good.
There are some methods about that partially restore some of the functions that require on DRM keys, but they are not 100% the same as having the keys
There is no point backing up the TA once you have unlocked.

gregbradley said:
Incorrect.
The DRM keys are NOT included in any FTF. If they are lost they are gone for good.
There are some methods about that partially restore some of the functions that require on DRM keys, but they are not 100% the same as having the keys
There is no point backing up the TA once you have unlocked.
Click to expand...
Click to collapse
I am running CyanogenMod now and need to go back to factory software (locked bootloader with the TA restored). I have got an old firmware (4,4,2 Android), but it includes the TA. I already made a TA backup myself, but what to do: flash the stock ROM with the TA and than restore my backup or should I not flash the firmwares' TA but only restore my TA?

nike007 said:
I am running CyanogenMod now and need to go back to factory software (locked bootloader with the TA restored). I have got an old firmware (4,4,2 Android), but it includes the TA. I already made a TA backup myself, but what to do: flash the stock ROM with the TA and than restore my backup or should I not flash the firmwares' TA but only restore my TA?
Click to expand...
Click to collapse
Restore the TA and flash a stock FTF with flashtool before you reboot.

Help! Sony Xperia Z3 Dual (D6633) pre-rooted

Hi all
I have searched for a long time about rooting my device, but i found nothing
I have Sony Xperia Z3 Dual (D6633) with android 5.1.1 build 23.4.A.1.232 and locked bootloader.
So, I need to root it or install a pre-rooted stock firmware without touching the bootloader.

Hi, you need to flash a kitkat rom with flashtool then root with giefroot. (I'm not sure about other rooting methods but this is the safest way IMO.)
After it got rooted, install a recovery so you can flash pre-rooted stock firmware or whatever you want. Remember to backup TA partition.
I had D6633 before and worked perfectly.
I have posted this before but you can go directly to the thread http://forum.xda-developers.com/z3/general/guide-rootrecovery-how-to-root-install-t3017056
doresreturns said:
As far as I know, stock roms with stock kernel don't need bootloader to be unlocked. You need to unlock the bootloader in order to flash custom kernel and aosp stuffs.
tl;dr, if you are not gonna use custom kernel and aosp stuffs your bootloader can remain locked.
Ok, if you want to install moonbreakers, here's what I did when I first bought the device. I never unlock my bootloader.
1. Prepare the tools and root the device using Giefroot. and I recommend you to backup TA partition first just in case.
2.Install dual recovery.
3.Now that you have a working recovery you can flash any stock roms.
here's the guide by G-FACE.
if you want to unlock the bootloader remember to backup TA partition before you do it. If it's lost you can't get it back.
Click to expand...
Click to collapse

First of all, thanks for your help
Well i'm not professional, I only understand the rooting process.
But I have some questions:
1- can I make a ftf file as a backup from my exist firmware, so when I decide to reverse the whole process and return my device back to its original state, without losing anything?
2- What is the recovery, is that recovery has any disadvantage or negatively affect my device?
3- I didn't find a firmware 23.4.A.1.232 with the same customization version which is 1288-7361_R3C

Do we have non-root Xperia Z3 custom rom?

I am using unlock bootloader Xperia Z3 right now, having rooted custom rom and recovery. Currently I need to have my device become non-rooted for testing applications. I can flash FTF but my device will lost recovery and it would be tedious to flash recovery and rom again.
I tried to find any non-root rom but can't find yet. Or do I need to flash FTF to have non-root rom?

Felys said:
I am using unlock bootloader Xperia Z3 right now, having rooted custom rom and recovery. Currently I need to have my device become non-rooted for testing applications. I can flash FTF but my device will lost recovery and it would be tedious to flash recovery and rom again.
I tried to find any non-root rom but can't find yet. Or do I need to flash FTF to have non-root rom?
Click to expand...
Click to collapse
If you are not rooted you are stuck with official stock roms only. Just flash a FTF.
However, this will not lock your bootloader, you will have to restore your TA partition to do this or use flashtool.

Can't return from aosp 7.1.1 custom rom to 6.0.1 stock rom

Well, i've flashed an aosp 7.1.1 firmware to my z3 UB but the battery drains fast and the camera is too dark, so, i want to return to 6.0.1 sony stock rom but i flashed 6.0.1 kernel (fastboot) and flashed the rom (recovery) and bootloop occurs after that.
Any suggestion? help

You must flash stock firmware with flashtool

I have the same problem, but i fix it:
1. You need to flash some android 7.x.x non-aosp(lineageos, etc) rom.
2. Then flash nailyk's recovery - https://www.androidfilehost.com/?fid=457095661767124626 (ONLY WITH FASTBOOT,NO ZIP)
3. Then from this recovery wipe data cache and dalvik.
4 Then try flahs .ftf with flashtool.
If all this do not work you need to download and install official flashtool EMMA form Sony - http://developer.sonymobile.com/open-devices/flash-tool/how-to-download-and-install-the-flash-tool/ and then flash with last ftf in this programm. After flashing in EMMA you'l be able to flash .ftf in Flashtool... Please say thanks if i help u)))

blackhaya said:
Well, i've flashed an aosp 7.1.1 firmware to my z3 UB but the battery drains fast and the camera is too dark, so, i want to return to 6.0.1 sony stock rom but i flashed 6.0.1 kernel (fastboot) and flashed the rom (recovery) and bootloop occurs after that.
Any suggestion? help
Click to expand...
Click to collapse
I used FlashTool from PixN Rom 7.1.1 , to get stock rom. Worked.

I flashed the 7.1.1 AOSP, had no battery drain or any other problems/bugs. Was a good rom. But decided to go back to stock 5.1.1, mostly because of Sony DRM keys. Unlocked my bootloader but forgot to backup the keys. Good thing is that there is a fix for that, if you didnt back them up. Only on stock Sony firmware you can get them back.
The easiest way to fix the dark camera issue and the Sony special "things", you need to be on stock and restore DRm keys or flash the DRM fix.
Use flashtool to flash stock ftf, than just flash recovery via fastboot and download any rom you want to flash after that.
I recommend flashing stock 5.1.1 than custom 5.1.1 or MM.
Dont forget flashing SuperSU
Hope this helped you. If you need recovery img i can upload it for you.