A: 1. Remove the metal shield on the back of the UPS screen, check the manufacturer and batch information on the back of the screen, and provide this information to the engineer for analysis.
2. ① If the screen manufacturer is XRD brand and the batch is before July 2023, the engineer will provide the screen upgrade program and method, and users can solve the screen frozen problem by upgrading the screen program.
② If the screen manufacturer is XRD brand and the batch is from July 2023 or later, or if the screen manufacturer is DWIN brand. Please power off the UPS then loosen the screen fixing screws slightly to prevent the plastic part from pressing against the screen and causing it to freeze. Restart the UPS and check if the screen is stuck.
3. If the screen still freezes after the above method, you can contact engineer to replace the screen.