This is a faster way to unlock your smartphone. If you don't remember your lock screen pattern, you can enter wrong patterns for more five or more times and select the option - Forgot Pattern.

Way 3: For Android 4.4 or Lower – Forgot Pattern-Google Account Another way to know how to unlock a phone without password and data loss is by using the Google account Forgot Pattern feature.

Trick #1. Unlock Pattern Lock via Factory Reset This is the simplest trick to unlock locked Android device. However, the risk here is this method deletes all the data which are saved in phone memory.

After you set your pattern, PIN or password there will be an extra setting on the Security screen. It may say Timeout or Lock Phone After, depending on your phone and Android version.