In our description database there are 5 solutions for performing hard reset for Sony Xperia Z1s.

Choose the first method and follow the steps to perform a hard reset. If the first solution does not work, try the next method.

Please remember! Hard reset will delete any and all data your device contains; like pictures, contacts, messages, apps etc. Everything. Sony Xperia Z1s device will be brought back to the same configuration as that of a brand new device.

Instruction One:


1. Press and hold the Power button until the phone turns on.

2. Press the Call button and type in this code: *#*#7378423#*#*.

3. A new menu will open. From it, select Customization Settings and Reset customization. Confirm when the Data will be cleared and factory data reset will perform message appears.

4. Lastly, select Reset customization and reboot. Done!

Instruction Two:

1. Power up the phone.

2. Go to Menu > Settings > Backup & Reset.
3. Continue by selecting Factory Data Reset > Reset Phone > Erase Everything > Ok.
4. Now just allow the phone to reset'n'restart. Done!