1. After entering your pattern incorrectly 5 times, your device will be locked for 30 seconds. Tap Backup PIN.
   
2. Enter your backup PIN, then tap Done.
   
3. Alternatively, tap Forgot Pattern?.
   
4. Enter an Email address and password that is linked to the device, then tap Sign in.
   Note: The device must have already been associated with a Google account for the 'Forgot Pattern' option to display.