Disable Android lock screen using custom recovery and “Pattern Password Disable” (SD card needed)

This method is for more advanced Android users that know what the terms “rooting” and “custom recovery” mean. As the title says, for this to work you need any kind of custom recovery installed and your phone must have an SD card slot. Why the SD card? Well, we need to transfer a ZIP file to your phone and that’s usually not possible when it’s locked. The only way is to insert an SD card with the file.Unfortunately, card slots became kind of a rare thing in the smartphone world, so this will only work for some people.
Here’s what you need to do:

1. Download the Pattern Password Disable ZIP file on your computer and put it on an SD card.
2. Insert the SD card into your phone.
3. Reboot your phone into recovery.
4. Flash the ZIP file on your SD card.
5. Reboot.
6. Your phone should boot up without a locked screen. Should there be a password or gesture lock screen, don’t panic. Just type in a random password or gesture and your phone should unlock.

Source: http://trendblog.net/how-to-bypass-android-phone-lock-screen-pattern-pin-password/