How to enter Sony Xperia Z3 D6643 Recovery Mode, Fastboot mode and How to Hard reset it.
Recovery Mode
- Turn off the device
- Press and hold Volume UP + Volume Down Key
- then Press and hold Power key while pressing these keys
- then press Camera key to enter Android System Recovery
- Release all key when you see Android icon
- Use Volume key to select Menu
- Use Power key to Confirm or Execute Menu
Fastboot Mode
- Turn off the device
- Press and hold Volume Down key
- Connect the USB Cable to the Sony Xperia Device
- You are in the Fastboot mode now!
Hard reset Sony Xperia Z3 D6643
- In Recovery Mode select wipe data / factory reset
- press Power key to confirm
- select Yes — delete all user data, press power key to confirm
- select Reboot system now to finish hard reset
Hard reset via Settings menu
- Open Settings menu from home screen or Apps
- Select Backup & reset option
- Tap to select Factory Data Reset
- tap Reset Phone.
- tap Erase Everything
- tap OK to confirm.
Alternative to hard reset Sony Xperia using Flashtool and using Sony PC Companion
Warning! If you perform a hard reset, make sure to back up important data.