How to Master Reset on Sony St25i Xperia U?

  1. Make sure you turned off the phone.

    Hard Reset keys Sony St25i Xperia U

  2. Hold down the Volume Down key and the Power button.
  3. Stop pressing the Power button.
  4. When a new menu appears, go for "Clear Storage" using the Volume keys and the Power button.
  5. Press Volume Up key to finish the process.
  6. That's all! After these actions, your phone data will be deleted.

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