07-30-2012 12:21 PM
This scenario is only applicable when the device uses the Pattern lock and a Google account is already configured.
Note: If no Google account is configured, or the PIN/Password unlock options are used, the device will require a hardware reset..
Attempt to draw the pattern at least 5 times.
After the fifth unsuccessful attempt, a notification will appear. Tap OK.
After the retry counter counts down, tap Forgot pattern?
Enter the Username and Password for the Google account attached to the handset and tap Sign in.
Draw a new unlock pattern to replace the forgotten one and tap Continue.
Note: To delete the drawn pattern and create a different one, tap Retry.
Draw the same pattern again and tap Confirm.
The lock pattern is now changed.