Connect to the internet: On a mobile device with internet access, launch the DS cam app.
Manage licenses: Log in and tap the menu icon in the bottom left corner. Select Offline License Validation and then Manage License > Add License/Delete License.
Add or delete licenses: Agree to the terms and choose a server, or tap Add Server and enter details. Enter the license keys and confirm.
Go offline: Transfer the updated DS cam app to your NAS without internet access.
Connect and activate: Launch the app on your NAS and sign in. The licenses will automatically activate or deactivate.