This tutorial will show you how to unlock and reset your android device lock pattern if you have forgotten your lock pattern and can remember your Google/Gmail account.
If you have synchronized your android device with Google Gmail account before then you just need to signin your Gmail account and the lock pattern will be removed, but if you have not sync your device with Gmail or you have forgotten your Gmail ID then no need to panic just follow the step below and you will reset your android device and lock pattern will be removed.

Steps  to recover lock pattern of any android device phone

1. Switch off the phone.
2. Now hold this buttons all together at the same time “Volume up + Home Key + Power Button” until the phone boots (if you device doesn’t have a home button just hold together volume up key and power key)
3. Now a screen like DOS will come up with different options
4. Use the volume key to move up and down then scroll down to “Restore Factory Defaults” or “Delete all User Data” depending on which is on your device.
5. After clicking on the settings above, now scroll down to “Reboot System Now ” and wait for your phone to reboot.

Now your phone will reboot and all lock pattern removed.