BG96 - AT+QLTS shows unexpected behaviour (no/missing timestamp)

Dear Quectel support team,

When testing Quectel BG96 with the Austrian network provider T-Mobile we encountered the behaviour that the QLTS command did not provide a timestamp. We tested several approaches. At some of them we retried every 10 seconds for more than half an hour being connected to the network successfully. Also we were able to transmit and receive data over the network.

Here is the behaviour we got:
RDY
APP RDY
AT+CGMM
BG96
OK
AT+QCFG=“band”
+QCFG: “band”,0xf,0x400a0e189f,0xa0e189f
OK
AT+QCFG=“nwscanmode”
+QCFG: “nwscanmode”,0
OK
AT+QCFG=“nwscanseq”
+QCFG: “nwscanseq”,020301
OK
AT+QLTS=1
ERROR
AT+QLTS=1
OK

AT+QLTS=1
OK

Instead of returning a valid timestamp we only get “OK”.

The command AT+QNWINFO returns:
AT+QNWINFO
+QNWINFO: “EDGE”,“23203”,“GSM 900”,14
OK

How could we solve that issue?

Thanks for your help in advance!

Hi PhilipModum,

Since AT+QLTS should be work under cell network ,so pls check if your module has registered network successfully .
thanks

  1. at+cereg?;+cgreg?;+cops?;+qcsq;+qnwinfo