PasswordPocket currently does not have the function of modifying the master key, but the following steps can be used to achieve the purpose of modifying the master key. 1. It is recommended to make a backup first to save the currently accessed data. 2. Reset the PasswordPocket, restoring the device to like-new condition. (See Q9 for reset instructions) 3. Re-register the account and master key, and then you can set a new master key. 4. The backup data can be restored (Please note that the master key entered when restoring is the old one) 5. You can continue to use the product with the new master key in the future.