Hey ANDROID team.

I have recently bought a second hand Garmin asus a-50 from ebay, but has come locked to a certain net-work (wont tell me which) and i can't seem to get it unlocked.
I have read through the manual and it says something about unlocking the phone using the master erase button but only if you had forgotten your pass word or pattern...
Is there a place or something i havent read that i can get it unlocked???