The signal of the equipment is not good

Question

I found that the wireless signal of TPS570 is unstable. What should I do?

Answer 1

1. Confirm that the wireless module and its peripheral devices are soldered properly;

2. Make sure that the antenna base and the feeder head are in good contact;

3, confirm whether the wireless module and SIM card communication line is normal;

4, confirm the replacement module. (If the tester confirms the problem of the module before replacing it