1. Take back up of ur data in Settings-> back up
To verify the back up, open the back up data and view ur notes.. It shows all ur locked and unlocked notes
2. Clear the Master password
Settings-> Master password-clear password
It deletes ur locked notes.. But don worry u still have back up
3.Now set the new Master password
4. Go to back up again.. Check for the recent back up data.. ->Restore
5. Now u can open the locked notes vit ur new Master password
Enjoy guys
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