One year update service. Online authorization completed within 1-2 working days, no need shipping. Please offer device's serial number Once the update authorization is completed, there is no refund. You can find the serial number on the back of the device or in the user information.
What do you need to do after the subscription is renewed? 1. Restart the device 2. Connect the device to the network 3. Click "DP" 4. Click "Upgrade" to update it