How can I force a new connection attempt if the EC25 is in the “Registration Denied”/3 state?
The card is obviously not trying to re-establish a connection to the base station.
Previously I did this via AT+CFUN=0 and AT+CFUN=1 and that worked.
However, this obviously wears out the flash (according to analysis by Quectel) which leads to hundreds of broken EC25 cards.
Hi @ThomasGraf
I guess being rejected by the network is an unusual event, it doesn’t happen often? MCU logic can be used to reduce the number of CFUN, such as several times after CFUN still can not register, lengthens the CFUN interval and retry. In addition, if I have been rejected by the network, I think I need to confirm the reason for the rejection, so as to completely fix the problem.