MC52iR3: network registration not working | Telit Cinterion IoT Developer Community

Hello,

we've a problem with Cinterion MC52iR3 modules: network registration seems not to be working.

We've already checked different SIM cards from different operators without success.

AT+CREG?

+CREG: 0,2

If we select the operator manually, we get this:

AT+COPS=1,2,26203

+CME ERROR: phone busy

If the module is powered on, we get this:

^SYSSTART
+CIEV: mcclock,1

ATI

Cinterion
MC52iR3
REVISION 01.301

AT+CPIN?

+CPIN: READY

AT+COPS=?

+COPS: (1,"E-Plus",,"26203"),(1,"Telekom.de",,"26201"),(1,"Vodafone.de",,"26202"),,(0-4),(0,2)

AT+COPS?

+COPS: 0

AT^SNMON="ins",2

^SNMON: "INS",0,2,3,8471,58061,"26203",668,19
^SNMON: "INS",0,1,3,0,17503,"26201",83,25
^SNMON: "INS",0,1,3,37311,861,"26202",34,23
^SNMON: "INS",0,1,3,3761,861,"26202",8,19
^SNMON: "INS",0,1,3,65322,17503,"26201",119,19
^SNMON: "INS",0,1,3,58731,58165,"26203",1002,17
^SNMON: "INS",0,1,3,65320,17503,"26201",58,17
^SNMON: "INS",0,1,3,38731,58165,"26203",986,12
^SNMON: "INS",0,1,3,37312,861,"26202",38,11
^SNMON: "INS",0,1,3,16969,17503,"26201",75,10
^SNMON: "INS",0,1,3,38729,58061,"26203",1017,10
^SNMON: "INS",0,1,3,42141,17503,"26201",51,9
^SNMON: "INS",0,1,3,222,58061,"26203",976,8
^SNMON: "INS",0,1,3,633,17503,"26201",77,8
^SNMON: "INS",0,1,3,6207,58061,"26203",1019,8
^SNMON: "INS",0,1,3,40222,58061,"26203",980,7
^SNMON: "INS",0,4
^SNMON: "INS",0,8

AT^MONI

Serving Cell                                          I Dedicated channel
chann rs  dBm MCC MNC  LAC cell NCC BCC PWR RXLev  C1 I chann TS timAdv PWR  dBm Q ChMod
83   47  -63 262  01 445F FF29   7   2  33  -107  44 I    Limited Service

AT^SPLR=1,16

^SPLR: 1,"26203"
^SPLR: 2,"26208"
^SPLR: 3,"26201"
^SPLR: 4,"23210"
^SPLR: 5,"23207"
^SPLR: 6,"23203"
^SPLR: 7,"20620"
^SPLR: 8,"20610"
^SPLR: 9,"23002"
^SPLR: 10,"23001"
^SPLR: 11,"23802"
^SPLR: 12,"23806"
^SPLR: 13,"20820"
^SPLR: 14,"20801"

AT^SMOND

^SMOND:262,01,445F,FF29,72,83,63,,,0,,,0,262,01,445F,FF2A,04,119,77,262,01,445F,FF28,07,58,81,262,01,445F,4249,31,75,92,262,01,445F,0279,16,77,95,262,01,445F,A49D,30,51,95,262,01,0000,,00,0,0,0,26,99

Regards,

Thomas