How to lock my phone

By default, your phone lock code is 0000 but you can change this to any 4 to 8 digit code you want. To edit your phone lock code, go to:

Settings >> General tab >> Locks >> Phone Lock >> Change Code.

Now, to set the phone lock,

Go to Settings > the General tab > Locks > Phone Lock > Protection and select an alternative.

It is important that you remember your new code because you have to take the phone to your sony ericson retailer to unlock it.

Hope this helps...Good luck!