Change Master Code
1. Select the lock and go to its setting page, and select Master Code
2. Choose the way to change Master Code
Type old Master Code
3. Enter new Master Code
4. Remember new Master Code or not
You can choose whether to memorize the master code in current mobile phone or not, then your mobile phone will not need to input master code to enter setting page. You can change this setting in the lock setting page.
If the original mobile phone is stolen or lost, the lock setting may be changed, we recommend you to setup screen lock