i am sorry ( bad english )
1. what is tha TA backup !! what it's means and how can i do it ???
2. how to flash stock roms and where to find it for my xperia ZR c5502 ??? and what is the flash tool and how to use it
3. how can i but the phone back to the warranty state
4. what is the mean of fastboot and what i'll use it for ??
5. when i flash a stock rom how to get into recovery and make a wipe for data and cache ??
that's all i know that i had a bad english and i know that i asked alot but plz help me thnq