Sony Xperia Z1 Hard Reset

The factory reset or hard reset of the Sony Xperia Z1 is standard with all the Xperia mobile phone ranges. This reset will also work on a Sony Xperia Z Ultra (C6802,C6806 as well as the C6833 version). This also extends to the Sony Xperia Z1 Compact D5503 and the Sony Xperia Z1s C6916. They all use the same hard reset procedures.

Sony Xperia Z1 Hard Reset

Note now that the phone once reset cannot be undone. If you wish to save your settings and your data then do this before you do a hard reset on your mobile phone. You can use the Xperia Companion software however once deleted its permanently gone. Always make a backup of your data before you reset your phone. Also note that you cannot recover the data afterwards. This is why people would normally do a hard reset because it is when they sell the phone all the data and settings have been permanently removed. See also the Sony Xperia SL hard reset, Sony Xperia T3 hard reset as well as the Hard Reset Sony Xperia E3.

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.

Soft Reset Sony Xperia Z1

Make sure the battery is fully charged; Open the cover of the micro sim card slot Use a small tip of a pen or similar device to press and hold on that Yellow button for 3-5 seconds. You will see your Sony Xperia shuts down and starts the soft reset itself.

Hard Reset  Sony Xperia Z1 with the Menu

Turn on your Sony Xperia Z1; Make sure Sony Xperia Z1 battery is full; Go to menu: Setting > Backup and reset  > Factory Data Reset > Reset Device Choose Erase Everything Sony Xperia will reset to factory default.

Hard Reset Sony Xperia by Code

Power on Your Sony Xperia Z1 On dialer enter this code: *#*#7378423#*#* On the screen Select -> Customization Settings  Then select -> Reset customization and confirm. Sony Xperia Z1 will start the rest

Lastly see the Factory Reset Sony Xperia E4g Dual as well as the Hard Reset Microsoft Lumia 950 XL Dual Sim.