If you updrade your Lite Radio2SE or Lite Radio3 to elrs3.0, the firmware needs to be updated to V3.3.0.
Please kindly download the attached firmware of ELRS Nano TX Module (Three Versions).
Note: The baud rate of the remote control needs to be changed to 921K or above. If it is too low, you
cannot enter the ExpressLRS LUA script;