How do I unlock my LG phone pattern?
There are a couple of ways you can try to unlock your phone:
Using Android Device Manager accessible through the link below. Login with the account name that is also attached to phone and then initiate the change password/remove lock procedure.
Using Recovery. Access the Recovery mode and then use Wipe Data/Factory Reset (this will wipe custom content, contacts, messages, 3rd party apps, etc).
Visit a local phone service shop and they can do it for you for a small fee while keeping the content intact.