BG77 AT+COPS=? long response time

IoT Modules LPWA Module
1

I am testing new BG77-DVK. After trying to scan operators it takes 24 min to do it. How this time can be fixed, according to AT command guide it should not be more than 180 sec.

[2019-12-27 15:23:55:056_S:] AT+COPS=?
[2019-12-27 15:23:55:070_R:] AT+COPS=?
[2019-12-27 15:47:18:593_R:] +COPS: (1,“Tele2 LT”,“Tele2 LT”,“24603”,9),(1,“OMNITEL LT”,“OMT”,“24601”,9),(0,1,2,3,4),(0,1,2)

[2019-12-27 15:47:18:612_R:] OK
[2019-12-30 09:42:14:080_S:] AT+COPS=?
[2019-12-30 09:42:14:103_R:] AT+COPS=?
[2019-12-30 10:06:17:934_R:] +COPS: (1,“OMNITEL LT”,“OMT”,“24601”,9),(1,“Tele2 LT”,“Tele2 LT”,“24603”,9),(0,1,2,3,4),(0,1,2)

[2019-12-30 10:06:17:934_R:] OK

Version:
[2019-12-30 10:26:19:574_R:] Quectel
[2019-12-30 10:26:19:574_R:] BG77
[2019-12-30 10:26:19:574_R:] Revision: BG77LAR02A02

2

Which access technologies and bands are you enabling? If you restrict them to just what you require the time is significantly reduced. Check out these commands:

 R: 28/12/19 17:29:44.596 INFO: TX> "AT+QCFG="band",0F,0000000000080000,0000000000080000,1"
 R: 28/12/19 17:29:44.606 INFO: RX> "AT+QCFG="band",0F,0000000000080000,0000000000080000,1"
 R: 28/12/19 17:29:44.615 INFO: RX> "OK"
 R: 28/12/19 17:29:44.622 INFO: TX> "AT+QCFG="nwscanseq",030102,1"
 R: 28/12/19 17:29:44.629 INFO: RX> "AT+QCFG="nwscanseq",030102,1"
 R: 28/12/19 17:29:44.636 INFO: RX> "OK"
 R: 28/12/19 17:29:44.643 INFO: TX> "AT+QCFG="iotopmode",1,1"
 R: 28/12/19 17:29:44.649 INFO: RX> "AT+QCFG="iotopmode",1,1"
 R: 28/12/19 17:29:44.656 INFO: RX> "OK"
 R: 28/12/19 17:29:44.662 INFO: TX> "AT+QCFG="nwscanmode",3,1"
 R: 28/12/19 17:29:44.669 INFO: RX> "AT+QCFG="nwscanmode",3,1"
 R: 28/12/19 17:29:44.675 INFO: RX> "OK"
3

This solved the issue. Thanks.