All next attempts to reactivate network registration failed. After AT+COPS=2, AT+COPS=0, no +CREG: 0,2 but only +CREG: 0,0. PDP context is activated and socket is opened. SIM is OK. Here is only AT#MONIZIP report for simplicity:
Here socket is closed: #SS: 1,0 #SLASTCLOSURE: 1,1 (remote host TCP connection close due to FIN/END: normal remote disconnection decided by the remote application)
After few minutes (usually approx six and half munutes) GSM restarts without any notification (loosing collected data for sending) and after restart everything is ok.
Probably my error (at least one) is that too often force module to register. But, please Telit people, suggest some solution to force module to exit this state, or only restart is the solution?
Any idea?
Hi, no, difficult to say something about what is happening.
first of all it is not clear the problem you have , if there is the lack of the SIM detectin or other of the behaviors described are problems for you.
Before to issue AT+CFUN=4 and AT+CFUN=1, have you closed socket, calls?
We should receive the Python script sources or, better, you should be able to replicate the not well specified issue and then we could investigate on part of code that you should make available.
But maybe in this case it’s better that you contact directly the telit customer support e-mail address
Hi Luca,
The problem is probably in ILLEGAL ME.
3GPP TS 23.122 version 3.9.0 Release 1999
3.5 d) An “illegal MS”, “illegal ME” or “IMSI unknown in HLR” response to an LR; (Any SIM in the ME is then considered “invalid”.)
maybe it is. But what I don’t understand is if you can reproduce this behavior or not or it was a temporary behavior
This log (with my explanation inside) is from device that is entering
for a while area with poor network coverage.
GSM MODEL = GL865-DUAL
GSM FW = 10.01.150
IMEI = 356158063040923
IMSI = 284050070649893
…
#QSS: 0,1
CPIN: READY
#MONIZIP: 21,03B3,28CB,121,-70,40,40,0,0,28405
#MONIZIP: A7,03B3,28C9,111,-81,29,0
#MONIZIP: FF,FFFF,0000,123,-84,-1,-1
#MONIZIP: 26,03B3,0000,591,-84,26,20
#MONIZIP: 26,03B3,28CA,989,-84,26,20
#MONIZIP: 65,03B3,429B,630,-97,13,7
#MONIZIP: FF,FFFF,0000,109,-83,-1,-1
#RFSTS: “28405”,121,-70,03B3,02,5,,,2,28CB,”284050070649893″,”GLOBUL”,3,2
+CSQ: 21,0
+CREG: 0,1
#CEER: 31
#CEERNET: 0
#SS: 1,1,10.128.229.201,49471,84.54.180.146,10021
#SGACT: 1,1
#CGPADDR: 1,”10.128.229.201″
Packet sent to TCP server and confirmation received within 10 sec timeout.
…
#QSS: 0,1
+CPIN: READY
#MONIZIP: 21,03B3,28CB,121,-78,32,32,0,0,28405
#MONIZIP: 65,066F,3CD3,111,-80,30,24
#MONIZIP: 26,03B3,0000,591,-84,26,20
#MONIZIP: 26,03B3,28CA,989,-92,18,12
#MONIZIP: 65,03B3,429B,630,-96,14,8
#MONIZIP: FF,FFFF,0000,109,-79,-1,-1
#MONIZIP: FF,FFFF,0000,117,-81,-1,-1
+CSQ: 17,0
+CREG: 0,1
#CEER: 31
#CEERNET: 0
#SS: 1,1,10.128.229.201,49471,84.54.180.146,10021
#SGACT: 1,1
#CGPADDR: 1,”10.128.229.201″
Packet sent but timeout elapsed without answer from server.
Packet is sent with res = MDM2.send(packet,10) and res=1 and len(packet) = 38.
AT#SI reports that 38 bytes waiting acknowledge (as expected).
From this moment #CEERNET: 17 (NETWORK FAILURE).
…
After next not confirmed packets:
+CREG: 0,0
and is re-activated with AT+COPS=2 1 sec delay and AT+COPS=0.
#QSS: 0,1
+CPIN: READY
#MONIZIP: 65,066F,3CD3,111,-74,36,33,4,0,28405
#MONIZIP: 44,066F,0000,117,-74,36,26
#MONIZIP: FF,FFFF,0000,121,-75,-1,-1
#MONIZIP: FF,FFFF,0000,103,-81,-1,-1
#MONIZIP: 26,03B3,28CA,989,-87,23,15
#MONIZIP: FF,FFFF,0000,1024,-111,-1,-1
#MONIZIP: FF,FFFF,0000,1024,-111,-1,-1
#RFSTS: “28405”,111,-74,066F,,5,,,,3CD3,”284050070649893″,”GLOBUL”,0,2
+CSQ: 99,99
+CREG: 0,2
#SS: 1,1,10.128.229.201,49471,84.54.180.146,10021
#SGACT: 1,1
#CGPADDR: 1,”10.128.229.201″
#QSS:0,1
+CPIN:READY
#MONIZIP: 65,066F,3CD3,111,-75,35,33,4,0,28405
#MONIZIP: 44,066F,0000,117,-73,37,26
#MONIZIP: FF,FFFF,0000,121,-76,-1,-1
#MONIZIP: FF,FFFF,0000,103,-81,-1,-1
#MONIZIP: FF,FFFF,0000,1024,-111,-1,-1
#MONIZIP: FF,FFFF,0000,1024,-111,-1,-1
#MONIZIP: FF,FFFF,0000,1024,-111,-1,-1
#RFSTS: “28405”,111,-75,066F,,5,,,,3CD3,”284050070649893″,”GLOBUL”,3,2
+CSQ: 19,0
+CREG: 0,1
#CEER: 31
#CEERNET: 17 (NETWORK FAILURE)
#SS: 1,1,10.128.229.201,49471,84.54.180.146,10021
#SGACT: 1,1
#CGPADDR: 1,”10.128.229.201″
All unsent packet are sent and confirmed. Network de-registration do not affect
PDP contect activation and socket status.
…
Another +CREG: 0,0 reactivation network registration as above
and after a while:
+CREG: 0,1
and sending continues.
…
#QSS: 0,1
+CPIN: READY
#MONIZIP: 65,066F,3CD3,111,-90,20,20,5,0,28405
#MONIZIP: FF,FFFF,0000,985,-89,-1,-1
#MONIZIP: 44,066F,2AEF,117,-90,20,14
#MONIZIP: FF,FFFF,0000,121,-90,-1,-1
#MONIZIP: FF,FFFF,0000,103,-92,-1,-1
#MONIZIP: 81,03B3,3FD5,124,-94,16,0
#MONIZIP: FF,FFFF,0000,105,-91,-1,-1
#RFSTS: “28405”,111,-90,066F,02,5,,,2,3CD3,”284050070649893″,”GLOBUL”,2,2
+CSQ: 11,0
+CREG: 0,0
#CEER: 31
#CEERNET: 6 (ILLEGAL ME)
#SS: 1,1,10.128.229.201,49471,84.54.180.146,10021
#SGACT: 1,1
#CGPADDR: 1,”10.128.229.201″
All next attempts to reactivate network registration failed.
After AT+COPS=2, AT+COPS=0, no +CREG: 0,2 but only +CREG: 0,0.
PDP context is activated and socket is opened. SIM is OK.
Here is only AT#MONIZIP report for simplicity:
#MONIZIP: 54,03B3,382E,985,-89,21,21,5,0,28405
#MONIZIP: FF,FFFF,0000,121,-92,-1,-1
#MONIZIP: FF,FFFF,0000,634,-92,-1,-1
#MONIZIP: FF,FFFF,0000,103,-95,-1,-1
#MONIZIP: E5,066F,3CD3,111,-95,15,0
#MONIZIP: 81,03B3,3FD5,124,-96,14,0
#MONIZIP: FF,FFFF,0000,105,-91,-1,-1
#MONIZIP: 54,03B3,382E,985,-92,18,18,5,0,28405
#MONIZIP: 61,03B3,325B,634,-89,21,15
#MONIZIP: FF,FFFF,0000,103,-93,-1,-1
#MONIZIP: E5,066F,3CD3,111,-94,16,0
#MONIZIP: 26,03B3,30E0,591,-101,9,3
#MONIZIP: FF,FFFF,0000,121,-91,-1,-1
#MONIZIP: FF,FFFF,0000,105,-92,-1,-1
#MONIZIP: 54,03B3,382E,985,-94,16,16,5,0,28405
#MONIZIP: 61,03B3,325B,634,-93,17,11
#MONIZIP: E5,066F,3CD3,111,-95,15,0
#MONIZIP: 26,03B3,30E0,591,-97,13,7
#MONIZIP: FF,FFFF,0000,121,-92,-1,-1
#MONIZIP: FF,FFFF,0000,115,-93,-1,-1
#MONIZIP: FF,FFFF,0000,103,-93,-1,-1
#MONIZIP: 26,03B3,30E0,591,-89,21,21,5,0,28405
#MONIZIP: 54,03B3,382E,985,-86,24,18
#MONIZIP: E5,066F,3CD3,111,-94,16,0
#MONIZIP: 61,03B3,325B,634,-96,14,8
#MONIZIP: FF,FFFF,0000,121,-90,-1,-1
#MONIZIP: FF,FFFF,0000,105,-90,-1,-1
#MONIZIP: FF,FFFF,0000,119,-92,-1,-1
#MONIZIP: 26,03B3,30E0,591,-92,18,18,5,0,28405
#MONIZIP: 61,03B3,325B,634,-90,20,14
#MONIZIP: 54,03B3,382E,985,-90,20,14
#MONIZIP: E5,066F,3CD3,111,-96,14,0
#MONIZIP: FF,FFFF,0000,119,-92,-1,-1
#MONIZIP: FF,FFFF,0000,121,-92,-1,-1
#MONIZIP: FF,FFFF,0000,117,-93,-1,-1
#MONIZIP: 26,03B3,30E0,591,-94,16,16,5,0,28405
#MONIZIP: 62,03B3,3889,105,-91,19,13
#MONIZIP: 54,03B3,382E,985,-91,19,13
#MONIZIP: 61,03B3,325B,634,-93,17,11
#MONIZIP: E5,066F,3CD3,111,-94,16,0
#MONIZIP: FF,FFFF,0000,117,-92,-1,-1
#MONIZIP: FF,FFFF,0000,121,-92,-1,-1
#MONIZIP: 26,03B3,30E0,591,-93,17,17,5,0,28405
#MONIZIP: 54,03B3,382E,985,-87,23,17
#MONIZIP: 61,03B3,325B,634,-91,19,13
#MONIZIP: 62,03B3,3889,105,-93,17,11
#MONIZIP: E5,066F,3CD3,111,-95,15,0
#MONIZIP: FF,FFFF,0000,121,-91,-1,-1
#MONIZIP: FF,FFFF,0000,119,-93,-1,-1
#MONIZIP: 26,03B3,30E0,591,-96,14,14,5,0,28405
#MONIZIP: 54,03B3,382E,985,-90,20,14
#MONIZIP: E5,066F,3CD3,111,-95,15,0
#MONIZIP: 62,03B3,3889,105,-96,14,8
#MONIZIP: 61,03B3,325B,634,-97,13,7
#MONIZIP: FF,FFFF,0000,123,-91,-1,-1
#MONIZIP: FF,FFFF,0000,119,-91,-1,-1
#MONIZIP: 54,03B3,382E,985,-92,18,18,5,0,28405
#MONIZIP: 62,03B3,3889,105,-90,20,13
#MONIZIP: E5,066F,3CD3,111,-95,15,-1000
#MONIZIP: 61,03B3,325B,634,-97,13,6
#MONIZIP: 26,03B3,30E0,591,-111,-18,14
#MONIZIP: FF,FFFF,0000,121,-91,-1,-1
#MONIZIP: FF,FFFF,0000,115,-93,-1,-1
#MONIZIP: 54,03B3,382E,985,-90,20,20,5,0,28405
#MONIZIP: 62,03B3,3889,105,-89,21,21
#MONIZIP: 61,03B3,325B,634,-95,15,15
#MONIZIP: 26,03B3,30E0,591,-96,14,14
#MONIZIP: FF,FFFF,0000,121,-91,-1,-1
#MONIZIP: FF,FFFF,0000,115,-92,-1,-1
#MONIZIP: FF,FFFF,0000,111,-93,-1,-1
#MONIZIP: 54,03B3,382E,985,-90,20,20,5,0,28405
#MONIZIP: 62,03B3,3889,105,-88,22,22
#MONIZIP: 61,03B3,325B,634,-89,21,21
#MONIZIP: 26,03B3,30E0,591,-93,17,17
#MONIZIP: FF,FFFF,0000,121,-89,-1,-1
#MONIZIP: FF,FFFF,0000,115,-91,-1,-1
#MONIZIP: FF,FFFF,0000,111,-92,-1,-1
#MONIZIP: 54,03B3,382E,985,-90,20,20,5,0,28403
#MONIZIP: 62,03B3,3889,105,-88,22,22
#MONIZIP: 61,03B3,325B,634,-89,21,21
#MONIZIP: 26,03B3,30E0,591,-93,17,17
#MONIZIP: FF,FFFF,0000,121,-89,-1,-1
#MONIZIP: FF,FFFF,0000,115,-91,-1,-1
#MONIZIP: FF,FFFF,0000,111,-92,-1,-1
#MONIZIP: 54,03B3,382E,985,-90,20,20,5,0,28403
#MONIZIP: 62,03B3,3889,105,-88,22,22
#MONIZIP: 61,03B3,325B,634,-89,21,21
#MONIZIP: 26,03B3,30E0,591,-93,17,17
#MONIZIP: FF,FFFF,0000,121,-89,-1,-1
#MONIZIP: FF,FFFF,0000,115,-91,-1,-1
#MONIZIP: FF,FFFF,0000,111,-92,-1,-1
#MONIZIP: 62,03B3,3889,105,-88,22,22,6,0,28405
#MONIZIP: FF,FFFF,0000,111,-88,-1,-1
#MONIZIP: FF,FFFF,0000,117,-89,-1,-1
#MONIZIP: FF,FFFF,0000,121,-91,-1,-1
#MONIZIP: FF,FFFF,0000,123,-93,-1,-1
#MONIZIP: FF,FFFF,0000,103,-93,-1,-1
#MONIZIP: FF,FFFF,0000,107,-93,-1,-1
#MONIZIP: 65,066F,3CD3,111,-87,23,23,5,0,28405
#MONIZIP: FF,FFFF,0000,117,-87,-1,-1
#MONIZIP: FF,FFFF,0000,119,-90,-1,-1
#MONIZIP: FF,FFFF,0000,105,-90,-1,-1
#MONIZIP: FF,FFFF,0000,121,-90,-1,-1
#MONIZIP: FF,FFFF,0000,103,-91,-1,-1
#MONIZIP: FF,FFFF,0000,115,-92,-1,-1
#MONIZIP: 65,066F,3CD3,111,-87,23,23,5,0,28405
#MONIZIP: FF,FFFF,0000,117,-87,-1,-1
#MONIZIP: FF,FFFF,0000,119,-90,-1,-1
#MONIZIP: FF,FFFF,0000,105,-90,-1,-1
#MONIZIP: FF,FFFF,0000,121,-90,-1,-1
#MONIZIP: FF,FFFF,0000,103,-91,-1,-1
#MONIZIP: FF,FFFF,0000,115,-92,-1,-1
#MONIZIP: 65,066F,3CD3,111,-87,23,23,5,0,28405
#MONIZIP: FF,FFFF,0000,117,-87,-1,-1
#MONIZIP: FF,FFFF,0000,119,-90,-1,-1
#MONIZIP: FF,FFFF,0000,105,-90,-1,-1
#MONIZIP: FF,FFFF,0000,121,-90,-1,-1
#MONIZIP: FF,FFFF,0000,103,-91,-1,-1
#MONIZIP: FF,FFFF,0000,115,-92,-1,-1
#MONIZIP: 65,066F,3CD3,111,-87,23,23,5,0,28405
#MONIZIP: FF,FFFF,0000,117,-87,-1,-1
#MONIZIP: FF,FFFF,0000,119,-90,-1,-1
#MONIZIP: FF,FFFF,0000,105,-90,-1,-1
#MONIZIP: FF,FFFF,0000,121,-90,-1,-1
#MONIZIP: FF,FFFF,0000,103,-91,-1,-1
#MONIZIP: FF,FFFF,0000,115,-92,-1,-1
#MONIZIP: 65,066F,3CD3,111,-87,23,23,5,0,28403
#MONIZIP: FF,FFFF,0000,117,-87,-1,-1
#MONIZIP: FF,FFFF,0000,119,-90,-1,-1
#MONIZIP: FF,FFFF,0000,105,-90,-1,-1
#MONIZIP: FF,FFFF,0000,121,-90,-1,-1
#MONIZIP: FF,FFFF,0000,103,-91,-1,-1
#MONIZIP: FF,FFFF,0000,115,-92,-1,-1
#MONIZIP: 65,066F,3CD3,111,-87,23,23,5,0,28405
#MONIZIP: FF,FFFF,0000,117,-87,-1,-1
#MONIZIP: FF,FFFF,0000,119,-90,-1,-1
#MONIZIP: FF,FFFF,0000,105,-90,-1,-1
#MONIZIP: FF,FFFF,0000,121,-90,-1,-1
#MONIZIP: FF,FFFF,0000,103,-91,-1,-1
#MONIZIP: FF,FFFF,0000,115,-92,-1,-1
#MONIZIP: 65,066F,3CD3,111,-82,28,28,5,0,28405
#MONIZIP: 64,03B3,3D88,103,-85,25,19
#MONIZIP: FF,FFFF,0000,117,-81,-1,-1
#MONIZIP: FF,FFFF,0000,121,-84,-1,-1
#MONIZIP: FF,FFFF,0000,105,-85,-1,-1
#MONIZIP: FF,FFFF,0000,124,-86,-1,-1
#MONIZIP: FF,FFFF,0000,123,-87,-1,-1
#MONIZIP: 65,066F,3CD3,111,-82,28,27,0,0,28405
#MONIZIP: FF,FFFF,0000,117,-82,-1,-1
#MONIZIP: 64,03B3,3D88,103,-86,24,18
#MONIZIP: FF,FFFF,0000,124,-85,-1,-1
#MONIZIP: FF,FFFF,0000,121,-85,-1,-1
#MONIZIP: FF,FFFF,0000,105,-87,-1,-1
#MONIZIP: FF,FFFF,0000,119,-87,-1,-1
#MONIZIP: 65,066F,3CD3,111,-80,30,30,4,0,28405
#MONIZIP: 44,066F,2AEF,117,-79,31,25
#MONIZIP: 64,03B3,3D88,103,-87,23,17
#MONIZIP: FF,FFFF,0000,105,-83,-1,-1
#MONIZIP: FF,FFFF,0000,121,-85,-1,-1
#MONIZIP: FF,FFFF,0000,124,-86,-1,-1
#MONIZIP: FF,FFFF,0000,119,-86,-1,-1
#MONIZIP: 65,066F,3CD3,111,-78,32,32,4,0,28405
#MONIZIP: 44,066F,2AEF,117,-82,28,22
#MONIZIP: 64,03B3,3D88,103,-88,22,16
#MONIZIP: FF,FFFF,0000,105,-80,-1,-1
#MONIZIP: FF,FFFF,0000,121,-81,-1,-1
#MONIZIP: FF,FFFF,0000,119,-83,-1,-1
#MONIZIP: FF,FFFF,0000,124,-84,-1,-1
#MONIZIP: 65,066F,3CD3,111,-80,30,30,4,0,28405
#MONIZIP: 44,066F,2AEF,117,-77,33,27
#MONIZIP: 64,03B3,3D88,103,-86,24,18
#MONIZIP: FF,FFFF,0000,121,-82,-1,-1
#MONIZIP: FF,FFFF,0000,124,-82,-1,-1
#MONIZIP: FF,FFFF,0000,105,-83,-1,-1
#MONIZIP: FF,FFFF,0000,119,-84,-1,-1
#MONIZIP: 65,066F,3CD3,111,-81,29,29,4,0,28405
#MONIZIP: 44,066F,2AEF,117,-78,32,32
#MONIZIP: 64,03B3,3D88,103,-88,22,16
#MONIZIP: FF,FFFF,0000,105,-81,-1,-1
#MONIZIP: FF,FFFF,0000,121,-82,-1,-1
#MONIZIP: FF,FFFF,0000,124,-83,-1,-1
#MONIZIP: FF,FFFF,0000,119,-85,-1,-1
#MONIZIP: 65,066F,3CD3,111,-81,29,29,4,0,28405
#MONIZIP: 44,066F,2AEF,117,-79,31,31
#MONIZIP: 64,03B3,3D88,103,-87,23,17
#MONIZIP: FF,FFFF,0000,105,-81,-1,-1
#MONIZIP: FF,FFFF,0000,121,-82,-1,-1
#MONIZIP: FF,FFFF,0000,124,-84,-1,-1
#MONIZIP: FF,FFFF,0000,119,-85,-1,-1
#MONIZIP: 65,066F,3CD3,111,-76,34,34,4,0,28405
#MONIZIP: FF,FFFF,0000,117,-78,-1,-1
#MONIZIP: FF,FFFF,0000,121,-79,-1,-1
#MONIZIP: FF,FFFF,0000,119,-81,-1,-1
#MONIZIP: FF,FFFF,0000,105,-81,-1,-1
#MONIZIP: FF,FFFF,0000,124,-81,-1,-1
#MONIZIP: FF,FFFF,0000,123,-84,-1,-1
#MONIZIP: 65,066F,3CD3,111,-76,34,34,4,0,28405
#MONIZIP: FF,FFFF,0000,117,-73,-1,-1
#MONIZIP: FF,FFFF,0000,119,-78,-1,-1
#MONIZIP: FF,FFFF,0000,105,-78,-1,-1
#MONIZIP: FF,FFFF,0000,121,-79,-1,-1
#MONIZIP: FF,FFFF,0000,103,-80,-1,-1
#MONIZIP: FF,FFFF,0000,123,-80,-1,-1
Here socket is closed:
#SS: 1,0
#SLASTCLOSURE: 1,1 (remote host TCP connection close due to FIN/END: normal remote
disconnection decided by the remote application)
#SGACT: 1,1
#CGPADDR: 1,”10.128.229.201″
#MONIZIP: 65,066F,3CD3,111,-78,32,32,4,0,28405
#MONIZIP: 44,066F,0000,117,-72,38,32
#MONIZIP: FF,FFFF,0000,105,-73,-1,-1
#MONIZIP: FF,FFFF,0000,119,-75,-1,-1
#MONIZIP: FF,FFFF,0000,121,-78,-1,-1
#MONIZIP: FF,FFFF,0000,103,-79,-1,-1
#MONIZIP: FF,FFFF,0000,123,-80,-1,-1
Here commands AT+CFUN=4 and AT+CFUN=1 are sent and result is:
#QSS: 0,1
+CPIN: READY
AT#MONIZIP answer is +CME ERROR: no network service.
AT#RFSTS answer is +CME ERROR: nonetworkservice.
+CSQ: 99,99
+CREG: 0,0
After network registration reactivation…
#CEER: 229 (PDP deactivation requested by NWK)
#CEERNET: 6
AT#SS=1 answer is +CME ERROR: SIM not inserted.
AT#SGACT? answer is +CME ERROR: SIM not inserted.
From this moment +CME ERROR: SIM not inserted is received
as answer to many commands even to AT+CREG?.
MONIZIP freezes to:
#MONIZIP: 01,03B3,3FD5,124,-111,31,31,4,99,
#MONIZIP: 44,066F,0000,117,-79,31,25
#MONIZIP: FF,FFFF,0000,121,-77,-1,-1
#MONIZIP: FF,FFFF,0000,111,-80,-1,-1
#MONIZIP: FF,FFFF,0000,105,-81,-1,-1
#MONIZIP: FF,FFFF,0000,123,-82,-1,-1
#MONIZIP: FF,FFFF,0000,107,-83,-1,-1
All time
#QSS: 0,1
#RFSTS: ,124,-79,03B3,02,5,,,2,3FD5,”284050070649893″,””,0,2
+CSQ: 99,99
+CREG: 0,0
#CEER: 229
#CEERNET: 6
After few minutes (usually approx six and half munutes) GSM restarts
without any notification (loosing collected data for sending)
and after restart everything is ok.
Probably my error (at least one) is that too often force module to register.
But, please Telit people, suggest some solution to force module to exit this state,
or only restart is the solution?
Any idea?
Hi, no, difficult to say something about what is happening.
first of all it is not clear the problem you have , if there is the lack of the SIM detectin or other of the behaviors described are problems for you.
Before to issue AT+CFUN=4 and AT+CFUN=1, have you closed socket, calls?
We should receive the Python script sources or, better, you should be able to replicate the not well specified issue and then we could investigate on part of code that you should make available.
But maybe in this case it’s better that you contact directly the telit customer support e-mail address
Hi Luca,
The problem is probably in ILLEGAL ME.
3GPP TS 23.122 version 3.9.0 Release 1999
3.5 d) An “illegal MS”, “illegal ME” or “IMSI unknown in HLR” response to an LR; (Any SIM in the ME is then considered “invalid”.)
maybe it is. But what I don’t understand is if you can reproduce this behavior or not or it was a temporary behavior