A. 1. Ensure that your terminal is fully charged and properly connected to the internet. Check the Wi-Fi or mobile data connection. 2. Restart the terminal and the app to refresh the connection. 3. If using Bluetooth, ensure that Bluetooth is enabled on your device and that the terminal is paired correctly.

B. 4. Move closer to the Wi-Fi router or switch to a different network if possible. 5. If the issue persists, check for any firmware updates for the terminal and apply them if available.