Hard Reset SONY Xperia Miro ST23i

First method:

  1. Power on the phone.
    Hard Reset SONY Xperia Miro ST23i
  2. Then goto Settings -> Backup & reset -> Factory Data Reset -> Reset Phone.
  3. Now select option "Erase everything", and confirm that.
  4. Done!

Second method:

  1. First you should download flashtool from Sony website: http://developer.sonymobile.com/services/flash-tool/
  2. Make sure, that you have installed drivers for your USB data cable.
  3. Now turn off your device.
    Hard Reset SONY Xperia Miro ST23i
  4. Then press and hold Volume Down, and connect to USB cable.
    HardReset SONY Xperia Miro ST23i
  5. Next follow the instructions in your screen, and accept appropriate options.
  6. Success!

Third method:

  1. Switch off your cell phone.
    Hard Reset SONY Xperia Miro ST23i
  2. Next hold and press Power button + Volume Up for about few seconds.
    Factory Reset SONY Xperia Miro ST23i
  3. Release them, when you see menu on your screen.
  4. Now follow the instructions on your screen.

Fourth 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 Xperia Miro ST23i
  4. Choose option "Support Zone New!", and click "Start".
    Wipe data SONY Xperia Miro ST23i
  5. Wait for the program to install the appropriate add-on.
  6. After that you will see next window with 3 options.
    Format SONY Xperia Miro ST23i
  7. Goto option "Phone / Tablet Software Update", and click "Start".
  8. Select "repair my phone / tablet".
    HardReset SONY Xperia Miro ST23i
  9. Now follow the instructions and accept all informations. 
    Restore SONY Xperia Miro ST23i
    Remove screen password SONY Xperia Miro ST23i
  10. Please be patient and wait until preparing computer for software update is complete.
    Remove Screen Lock SONY Xperia Miro ST23i
  11. Afterwards choose your phone / tablet model.
    Permanently delete data from SONY Xperia Miro ST23i
  12. If you see this window, then connect your device into your PC.
    Hard Reset SONY Xperia Miro ST23i
  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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