To install the TWRP recovery on it, we advise you to use the official TWRP application as we explained here: TWRP Manager: Install the TWRP recovery on your Android device Explanations: If your mobile is still under an official ROM, Root it by consulting this guide (click here). This method only works on Rooted devices that also have a custom recovery installed. Delete your schema with Aroma File Manager
Now you can disable or change your unlock pattern on devices running under Android 4.4 or a newer version, this technique is simple and allows you to easily remove the unlock code or pattern by requesting a reset through your account linked with the device. Change your schema using the Google account
Find your lock pattern with SHUAME Before you start: This tutorial has been tested on several different devices running Android ICS, Android Jellybean, Android KitKat, and Android Lollipop. In this guide, we are going to give you two easy and free methods to remove or find the lock pattern of your Android phone or tablet without needing to perform a hard reset via recovery. If you have forgotten the pattern, code or password for locking your Android device, the only solution to unlock it is to give your Google account password or to completely reset your Android device via recovery, which results in the loss of all personal data.