SparkFun Forums

[Fedepipo]

I have a GM862-QUAD telit modem. At first i was able to register with no problem. The other day it keeps me on CREG=0,3 (not able to register) . I reflash as i saw another post on this forum and it comes to live again. But today it becomes CREG=3 again. I reflash it again and nothing. When i insert the sim card it seems to register for a seconds and then fall down.

+CREG: 2

+CREG: 1

+CREG: 2

+CREG: 1

+CREG: 2

+CREG: 1

+CREG: 2

+CREG: 3
at+cops=?
+COPS: (2,"748 10","","74810")

OK
74810 is my network but i cant register.... Please, any ideas?

[Fedepipo]

it seems to be a signal problem. When the connection try 6
times it give ups and then you can try to connect manually. So at this
momment the antenna signal seems to be stable at 8,0 or 7,0, enough to
connect. Then i try AT+cops=1,2,74810 manually and the antenna signal
drops down (99,99). Then when it gives up again the antenna get stable
again. I postu a txt of the console with the modem.

at+csq
+CSQ: 7,0 (*** AT+creg=0,3 .. not trying to connect)

OK
at+csq
+CSQ: 8,0 (*** AT+creg=0,3 .. not trying to connect)

OK
at+csq
+CSQ: 8,0 (*** AT+creg=0,3 .. not trying to connect)

OK
at+csq
+CSQ: 8,0 (*** AT+creg=0,3 .. not trying to connect)

OK
at+csq
+CSQ: 8,0 (*** AT+creg=0,3 .. not trying to connect)

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 9,0

OK(*** AT+creg=0,3 .. not trying to connect)
at+csq
+CSQ: 9,0

OK
at+csq
+CSQ: 9,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 7,0

OK
at+csq
+CSQ: 7,0

OK
at+csq
+CSQ: 7,0

OK
at+csq
+CSQ: 7,0

OK
at+csq
+CSQ: 7,0

OK
at+csq
+CSQ: 7,0

OK
at+csq
+CSQ: 7,0

at+cops=1,2,74810
OK
at+csq
+CSQ: 7,1 (*** AT+creg=0,2 .. trying to connect)

OK
at+csq
+CSQ: 7,1 (*** AT+creg=0,2 .. trying to connect)

OK
at+csq
+CSQ: 7,1 (*** AT+creg=0,2 .. trying to connect)

OK
at+csq
+CSQ: 99,99 (*** AT+creg=0,2 .. trying to connect)

OK
at+csq
+CSQ: 99,99 (*** AT+creg=0,2 .. trying to connect)

OK
at+csq
+CSQ: 99,99 (*** AT+creg=0,2 .. trying to connect)

OK
at+csq
+CSQ: 99,99 (*** AT+creg=0,2 .. trying to connect)

OK
at+csq
+CSQ: 7,1 (*** AT+creg=0,3 .. not trying to connect)

OK
at+csq
+CSQ: 8,0 (*** AT+creg=0,3 .. not trying to connect)

OK
at+csq
+CSQ: 8,0 (*** AT+creg=0,3 .. not trying to connect)

OK
at+csq
+CSQ: 9,0 (*** AT+creg=0,3 .. not trying to connect)

OK
at+creg
+CREG: 0,3

OK
at+cops=1,2,74810
OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 99,99 (*** AT+creg=0,2 .. trying to connect again)

OK
at+csq
+CSQ: 8,0

OK
at+csq
+CSQ: 8,0

OK
at+creg
+CREG: 0,3

[maokh]

That RSSI looks like crap :/

Are you able to do a AT#SERVINFO while its not fully registered?