New PE UP, Boyz
You need to unlock bootloader to install any ROM other than STOCK one. TA backup is needed only if you plan to return to stock (or maybe in some ROMS, not sure about that. Maybe in future can be usefull, but probably no). Anyaway, always good to backup it.Hello!
I have a totally stock XZ1 with latest official Pie build from Sony.
Do I need to unlock bootloader and backup TA partition and DRM to make this ROM work?
If so, do you know where to find an updated guide? I know this is an old phone, sorry!