I have forgotton the pattern lock for my LG GT540, what can I do?
How to Fix
If you have set up a pattern lock on your GT540 and have forgotten the pattern then you will need to factory reset your phone.
This can be done by pressing and holding the volume down button, home button and then the search button at once.
This will erase all content on your handset, this is a security feature in the event your handset is lost or stolen.
It ensures your data can not be accessed by an unauthorised person.