What to do if I hear a prompt as soon as I lift the phone off the hook with Zte MF286D?
- SSheila LeonardSep 8, 2025
If you hear a prompt, phone alert, or announcement as soon as you lift the phone off the hook, make sure your (U)SIM card is inserted correctly and the PIN number has been entered. If you entered the PIN incorrectly, you will need to enter the PUK code when prompted.















