A :
* Please confirm the RF setting, whether it is AMICOCM standard setting.
* Please use AMICOCM standard module to compare whether it is a module problem.
* Please simplify RF to TX / RX one-way communication to confirm TX or RX problem.
* Please check the WTR signal to confirm whether the TX / RX is operating normally and whether the TX packet falls within the range of RX.
* If some modules are normal and some modules are abnormal, you can exchange IC to compare whether it is module PCB or IC problem.

If the situation is not clear, please consult the agent.