Hard Reset SONY ERICSSON Xperia Mini ST15i

First method:

  1. Make sure that device is working if not press Power buttonHard Reset SONY ERICSSON Xperia Mini ST15i
  2. Open Menu screen and follow up next steps.
  3. Find Settings > General > Master reset.
  4. Confirm by pressing left Softkey.
  5. After restart device will be ready to use.

Second method:

  1. Power off your phone.
    Hard Reset SONY ERICSSON Xperia Mini ST15i
  2. Next hold and press left and right soft keys.
    Factory Reset SONY ERICSSON Xperia Mini ST15i
  3. Then press and release Power button.
    Hard Reset SONY ERICSSON Xperia Mini ST15i
  4. Now follow the instructions in your screen.

Third method:

  1. First you should download PC Companion, in example from here: http://www.sonymobile.com/gb/tools/pc-companion/
  2. Install it and run.
  3. Next you will see window with 4 options.
    Master Reset SONY ERICSSON Xperia Mini ST15i
  4. Choose option "Support Zone New!", and click "Start".
    Wipe data SONY ERICSSON Xperia Mini ST15i
  5. Wait for the program to install the appropriate add-on.
  6. After that you will see next window with 3 options.
    Format SONY ERICSSON Xperia Mini ST15i
  7. Goto option "Phone / Tablet Software Update", and click "Start".
  8. Select "repair my phone / tablet".
    HardReset SONY ERICSSON Xperia Mini ST15i
  9. Now follow the instructions and accept all informations. 
    Restore SONY ERICSSON Xperia Mini ST15i
    Remove screen password SONY ERICSSON Xperia Mini ST15i
  10. Please be patient and wait until preparing computer for software update is complete.
    Remove Screen Lock SONY ERICSSON Xperia Mini ST15i
  11. Afterwards choose your phone / tablet model.
    Permanently delete data from SONY ERICSSON Xperia Mini ST15i
  12. If you see this window, then connect your device into your PC.
    Hard Reset SONY ERICSSON Xperia Mini ST15i
  13. Done!

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

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