<![CDATA[CATM + GNSS - Cannot complete connect AT commands]]>Hello all, I have used other CATM modems before (Nordic, U-Blox), I am hoping the M5 will outperform the others I have tried. I have bought several M5 modems and deployed to my team, along with activated Hologram cards. First, I am trying to set up and do "hello world" over network. Either by reaching the Hologram pseudo server ore being able to send SMS to even one endpoint phone on common carrier network in USA (ATT, Verizon, T-mobile).

Here is how far I have reached and AT commands used;
ATE
AT+CFUN=1
AT+CNMP=38
AT+CMNB=1

AT_CREG:0,5 > roaming on
Network (new)

AT+CSQ
+CSQ: 27,99 > Antenna Strength

AT+CGATT=1 > test data connection
OK

Now here is where I cannot get past;

AT+CIICR > error

I have tried many other of the connection AT commands, I cannot get any further that above. Again, ether sending SMS or reaching Hologram Psuedo Server would suffice, no luck so far.

Can anyone point me to a complete AT list of confirmed commands that will complete some sort of end-to-end communication?

]]>https://community.m5stack.com/topic/6944/catm-gnss-cannot-complete-connect-at-commandsRSS for NodeMon, 18 May 2026 06:50:01 GMTThu, 31 Oct 2024 20:32:09 GMT60<![CDATA[Reply to CATM + GNSS - Cannot complete connect AT commands on Fri, 01 Nov 2024 07:51:15 GMT]]>Hello @Steven010

have you tried to follow the examples given in the documents listed here?

From what I can tell your modem is connected to LTE-M1 but with AT+CIICR (a command that doesn't exist for SIM7080G) you try to setup GPRS which doesn't match LTE.

Have a look at for instance the document explaining a TCP/UDP connection. I think your next command should probably be AT+CNACT=0,1 to activate a PDP and then AT+CNACT? to check for an IP address. And then go from there.

Thanks
Felix

]]>https://community.m5stack.com/post/26916https://community.m5stack.com/post/26916Fri, 01 Nov 2024 07:51:15 GMT