Database Develop

[Q] Backup TA Partition

Can someone please help me on this.
What is TA Partition and what are DRM Keys.
If we want to back-up our TA partition what we should do
1. Rooting and then unlock the boot loader or
2. Unlock the boot loader and then rooting
If we should first root the device and then unlock, can we root the device without unlocking the boot loader.

Root without unlocking bootloader, then backup your TA..
Sent by ArF's White SONY Xperia SP (c5303)

Janith Olagama said:
Can someone please help me on this.
What is TA Partition and what are DRM Keys.
If we want to back-up our TA partition what we should do
1. Rooting and then unlock the boot loader or
2. Unlock the boot loader and then rooting
If we should first root the device and then unlock, can we root the device without unlocking the boot loader.
Click to expand...
Click to collapse
TA partition is where ur drm keys reside They are what makes your BE2 work and some other *Xperia only* features

[Q] Restore to stock

Hi, i have cyanogenmod installed on my xperia z with bootloader unlocked.
before unlocking the bootloader i have used the tool BACKUP TA to save DRM keys
If i want to restore my device to stock rom and restore also the warranty is this the right procedure?
- Relock the bootloader with falshtool
- Flash a sony stock firmware FTF with flashtool and full wipe
- Restore DRM keys with BACKUP TA

Skip first one,flash stock rom and restore TA.
Bootloader will be locked again once you restore TA.
Sent from my C6603 using xda premium

[Q] Rooting 4.3 Problem

Hey guys i know there is probably an answer in here somewhere but ihave looked everywhere and tried all possible options to get this working. After my pc companion nagging at me to upgrade i bit the bullet and upgraded to JB 4.3 10.4.B.0.569
Afterwards i then found out that it had relocked bootloader and unrooted my phone..
So i went through the sony normal way of unlocked bootloader first of all... this is where i've hit a snag.. first time the Command promp told me it had failed then itried again with my KEY and it said DONE.... now my phone was stuck in a terrifying bootloop. So i then flashed 4.3 firmware using flashtools, and repaired my phone through sony center.... again.. tried to unlock bootloader and was stuck in boot loop. I have re flashed about 4 times and tried to unlock 4 times... still getting boot loops....
Any one care to shed some light on this?
Many thanks
Chris

Bootloader
Is bootloader unlock allowed?

Have you tried relocking it again using flashtool?
Sent from my C6603 using XDA Premium 4 mobile app

Hey
I was playing around with 4.3 all last night and managed to get root on my Z with locked BL,
Here is how I did it..
(Locked bootloader, skip unlocking if already unlocked)
- Flash the .67 firmware via flashtool
- Root 4.2 as you would have
- Unlock your bootloader and Backup the TA partition to relock this without losing any DRM keys
- Using flashtool flash the new firmware .569 (4.3)
- Then flash Doomlords advanced stock kernel
- Boot 4.3 and power down
- Using the recover installed with the kernel flash a superSU.zip from somewhere around here.
- Reboot and you now should have root
[Locked bl]
- Reflash ONLY just .569 kernel from the FTF
- Power on and Restore your TA partition to relock your boot loader and return everything back to normal..but with some root
As for your bootloader not unlocking properly i would first check to see if an unlock is allowed

when i try to flash 4.2 67 firmware..i just got bootloop..please someone help me..what have i done wrong..i still in LB..

Wipe data when flashing.
Sent from my C6603 using Tapatalk

Just unlock your bootloader through Flashtool when on newest firmware, flash advanced stock kernel, root,flash back stock kernel and re-lock your bootloader. should be working for you, and it wont take that much time :good::good:

kuboweb said:
Just unlock your bootloader through Flashtool when on newest firmware, flash advanced stock kernel, root,flash back stock kernel and re-lock your bootloader. should be working for you, and it wont take that much time :good::good:
Click to expand...
Click to collapse
If the warranty and features such as Bravia Engine 2 are important to anyone, please don't just follow this. Your DRM keys that allow BE2 to work and your warranty will be permanently lost.
Follow the earlier post in this thread and downgrade, root and backup your TA partition BEFORE unlocking the bootloader.
Sent from my C6603 using Tapatalk

[Q] Xperia ZR unable to boot

I can't boot XZR(C5502) since i tried to flash a CWM based Rom.
1)Xperia ZR 10.5.A.0.230 ROOTED[Locked bootloader]
2)Recovery installed Philz touch,cwm,twrp by NUT
3)I have Nandroid backup also have TA backup.
4)I dont remember about USB debugging on or off.
5)I tried to enter in recovery but nothing happend.
6)While entering in fastboot blue LED lights up.nothing on screen.
Please tell what to do?
Please paste a link for ftf file(indian).I can't find 10.5.A.0.230 for C5502 indian.
Is it ok to flash nordic or some other varient of ftf.

1. Did you check if the ROM requires an unlocked bootloader?
2. Did you perform a factory reset in recovery before flashing?
If you can't enter recovery, it's likely that zip you flashed included a kernel, and the kernel flash failed because of the locked bootloader. Find a stock FTF (doesn't matter which variant, only thing that changes is the bloatware and the default language, which you can change on first setup, all Sony media apps are the same), flash it, unlock bootloader (make sure you still have your TA backup, if not, root and take it again), install recovery and try flashing the ROM again.
P.S. Fastboot only shows the blue LED, nothing on the screen, there's nothing wrong.
Good luck!

SirVer said:
1. Did you check if the ROM requires an unlocked bootloader?
2. Did you perform a factory reset in recovery before flashing?
If you can't enter recovery, it's likely that zip you flashed included a kernel, and the kernel flash failed because of the locked bootloader. Find a stock FTF (doesn't matter which variant, only thing that changes is the bloatware and the default language, which you can change on first setup, all Sony media apps are the same), flash it, unlock bootloader (make sure you still have your TA backup, if not, root and take it again), install recovery and try flashing the ROM again.
P.S. Fastboot only shows the blue LED, nothing on the screen, there's nothing wrong.
Good luck!
Click to expand...
Click to collapse
I did all of above things.But should I unlock the bootloader.I am aware about BE 2 stops working.
Will BE 2 work after restoring TA backup.

dtechgeek said:
I did all of above things.But should I unlock the bootloader.I am aware about BE 2 stops working.
Will BE 2 work after restoring TA backup.
Click to expand...
Click to collapse
Yes BE2 will work after restoring TA Backup. I guess (not sure), restoring TA will lock the bootloader as well. Correct me if I am wrong :angel::angel:

anthonythangaraj said:
Yes BE2 will work after restoring TA Backup. I guess (not sure), restoring TA will lock the bootloader as well. Correct me if I am wrong :angel::angel:
Click to expand...
Click to collapse
you are right plus you need to get back to stock kernel before restoring your ta

[Q] Restore of TA partition

I bought sp once again after the first one got broken but this one have bootloader unlocking not allowed(but no simlock).
Correct me if i'm wrong: If i do try unlocking bootloader and it won't work, can i restore TA and flash stock and phone 'll be allright?