Hard Reset SONY ERICSSON K850i

First method:

  1. Device must be turned on to perform this operation. Hard Reset SONY ERICSSON K850i
  2. Then go to: Menu -> Settings -> General -> Master reset.
  3. Confirm by pressing left Softkey, and follow the instructions that appear.
  4. Done, your device is now ready to work on.

Second 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.
    HardReset SONY ERICSSON K850i
  4. Choose option "Support Zone New!", and click "Start".
    Factory Reset SONY ERICSSON K850i
  5. Wait for the program to install the appropriate add-on.
  6. After that you will see next window with 3 options.
    Master Reset SONY ERICSSON K850i
  7. Goto option "Phone / Tablet Software Update", and click "Start".
  8. Select "repair my phone / tablet".
    Permanently delete data from SONY ERICSSON K850i
  9. Now follow the instructions and accept all informations. 
    Wipe data SONY ERICSSON K850i
    Format SONY ERICSSON K850i
  10. Please be patient and wait until preparing computer for software update is complete.
    Restore SONY ERICSSON K850i
  11. Afterwards choose your phone / tablet model.
    Remove screen password SONY ERICSSON K850i
  12. If you see this window, then connect your device into your PC.
    Remove Screen Lock SONY ERICSSON K850i
  13. Done!

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

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