Learn How to Reset Lock Pattern in any android phone like Samsung ,Htc, LG ,Sony Ericsson ,Motorola or in any android mobile phone.

1. Factory reset your phone
2. Setup your phone just like you did the first time you unpacked it (use the same Google Account if you want your old contacts back!)
3. Restore any manual back-ups and install your previous applications from the My Downloads list.

OR

• Enter wrong pattern 5 times and wait for 30 seconds.
• Select “Forgot pattern” and enter your gmail account username and password.
• Make sure you use the same account that was used to activate the phone and double check the password by logging in to that Google account in a browser.
• If you don’t have access to the original Gmail account, you will need to do a hard reset and loose your settings and apps on the phone. The data on the memory card will not be wiped though.

if still searching visit here , hope this will help you in unlocking you android mobile phone.