I need to mail my Sony z3c smartphone to a repair shop.
It is rooted and I have a recent TWRP backup that I moved to my PC. I removed the sdCard and booted into recovery.
If I go to wipe -> factory reset
is this sufficient enough to prevent a
nosy repair shop employee from reading out my sensitive data.
I could not find any information about how the wiping process erases your data. Does it just delete the partition table or does it write new data over every single bit.
Does anyone have some information on what commands will be executed when using TWRP to wipe the phone ?