How to troubleshoot if the video transmission has no connection?

1. Please use NP-F or DC adapter for power supply when testing (When powered by Type-C port, if the power is less than 5V2A, the unit can’t work normally).
2. Turn on TX and RX and wait for 30s, then check the firmware version whether the same version.
3. RX scan channel and choose a clean channel to avoid interference, then place the TX and RX 0.5m away and pair TX and RX again simultaneously.