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Phone Lock on Sony Ericsson K790a

You can protect your phone against unauthorised use if it is stolen and the SIM card replaced. See how this can be done.




You can change the phone lock code (0000) to any four to eight digit code.

Automatic phone lock:

If your phone lock is set to automatic you do not need to enter your phone lock code until a different SIM card is inserted in the phone.

Note: It is important that you remember your new code. If you forget it then you will have to take it to your local Sony Ericsson retailer

To set the phone lock:

  1. > Settings > the General tab > Security > Locks > Phone Protection > Protection and select an alternative.
  2. Enter the phone lock code > OK

To unlock the phone:

  1. If your phone lock is on, enter your code > OK

To edit your phone lock code:


  1. > Settings > the General tab > Security > Locks > Phone Protection > Change code
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