Hard Reset SIEMENS S66

First method:

  1. Check your phone, if is on.
    Hard Reset SIEMENS S66
  2. Then press this in sequence:: *#9999#
  3. Success!

Second method:

  1. Press Power button, until your phone is on.
    Hard Reset SIEMENS S66
  2. Now navigate to Settings -> Phone -> Reset phone.
  3. Finito!

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

Help! This doesn't work