How to debrand a sony ericssob K660i free

[satch1234]

It is in the link i posted you,4th file from bottom.
Here it is: Downloads - R1FA030_RED52 - K660_R1FA030_MAIN_GENERIC_CE_RED52 - Top Sony
Yes,add customize file under misc tab.Click on 3 dots and add it in winrar format(don't extract).
You must extract only main generic and FS file.

Edit: make backup from the phone before flashing if you need something,pictures,phonebook etc.