I have a sim300s on a KUNS Design v2 board (I think thats the name…)
I’m able to interface with the PC just fine and can issue and receive AT commands all day no issues.
My issue is, it seems to never register on the network, or it might not be reading the sim totally to start registration properly?
I know the sim is good, I have tested it in my phone, I called Tmobile and the never see this IMEI trying to register.
This is powered by a large 12V power supply (25A) so I know I”m not low on juice, the board has a Power, System, Network, and Ring light.
Power light is On
Net Light blinks every second or so, Might be a little faster than a second but it’s close.
Ring Light is Off
System light is ON
Here is the output from a few commands that seem relevant to the issue. Thoughts?
——–
RDY
+CFUN: 1
+CPIN: READY
Call Ready
AT+CLIP?
+CME ERROR: 30
AT+CPIN?
+CPIN: READY
OK
AT+CR?
+CR: 0
OK
AT+CSQ
+CSQ: 99,99
OK
AT+COPS?
+COPS: 0
OK
AT+CREG?
+CREG: 0,2
OK
AT+CENG=2
OK
+CENG:0,”65535,??,?,000,00,00,0000,00,00″
+CENG:0,”65535,??,?,101,0d,07,0000,00,00″
+CENG:0,”65535,??,?,7d3,101,00,0003,00,00″
+CENG:0,”65535,??,?,000,00,00,0000,00,00″
+CENG:0,”65535,??,?,009,00,10,0000,00,00″
+CENG:0,”65535,??,?,000,00,01,0000,00,00″
AT+CGID
+GID:84 255
OK
AT+CSQ
+CSQ: 99,99
OK
———————-
Just to clarify,
AT+COPS? – Should not be empty correct?
And
AT+CSQ – should provide something other than 99,99 correct? (I’m in an area with great service when the sim is in my phone)
–I have this nice tool setup, https://m2msupport.net/m2msupport/module-tester/ pretty nice.
Thoughts?