I have Sony Xperia Z C6603 with 10.4.1.B.0.101 firmware
I am new to this and I want to do:-
1.Root my device to backup the DRM keys using Backup TA
2.Then, unlock bootloader
Any help will be appreciated.
You will probably have to wipe data when you downgrade, as sometimes the phone bootloops if data isn't wiped. You can try without wiping, but you may end up wiping.
Personal data and the internal SD card are wiped when unlocking the bootloader in any case.
Sent from my C6603 using Tapatalk
well actually you want to unlock bootloader for installing 4.4 ROM /Custom Kernels ?
If you only want to root,you will just need to download the Android 4.2.2 firmware 10.3.1.A.2.67 for C6603,then flash it using flashtool ( make sure you backed up all your apps using built-in Backup & restore app & save it in microSD card)
Next root it using DooMLoRD Easy Rooting Toolkit,that's all.
You can choose to install CWM / TWRP / XZDualRecovery
Then you can only download the pre-rooted Android 4.3 ROM
For me i'm using XZDualRecovery with eXistenZUltra ROM
Hope you understand
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