It may be a problem with the hardware of NDDS20. Please try to burn the NDDS20 program on the NBSN95 device, and then check whether the NB card can be used. First rule out whether it is a hardware problem.
There may be a problem with the hardware of ndds20. Please try to burn the program of ndds20 on nbsn95 device, and then check whether NB card can be used. First, eliminate the hardware problem.<br>
Maybe there is something wrong with the hardware of NDDS20. Please try to burn the NDDS20 program in NBSN95 device, and then check whether you can use NB card. First, rule out whether it is a hardware problem.