1.
Check unlocked bootloader or not2. If so, you can put a custom kernel with rekoveri, for example
this. I use kernels to install
QuikIMG. Then you download custom firmware, for example
Clean ICS by art0502ver V.3, you throw it in the root of the memory card. You enter CWM recovery (when you turn on the phone, SONY appears, press it, you release it and you press the volume -)
When you first install the firmware
in Recovery do:
- wipe data / factory reset =>wipe cache partition =>advanced =>wipe dalvic cache
- install zip from sdcard =>choose zip from sdcard =>choose firmware file
- We are waiting for the end of the installation =>reboot system now
When upgrading to the next version:
In Recovery:
- wipe cache partition =>advanced =>wipe dalvic cache
- install zip from sdcard =>choose zip from sdcard =>choose firmware file
- We are waiting for the end of the installation =>reboot system now
- If the bootloader is not unlocked, then you cannot flash the custom kernel.
Get root right by
this ,
thisor
thisinstructions.
Install
thisor
thisRecover and do it from the time you ENTER the CWM recovery described above.
And do not forget to read the instructions for everything that we want to install, and make backup in rekoveri before installing something.