GL-MT300Nv2 with Huawei E3276s-150 non-hilink

Hi,
I tested your proposal and configured:

 uci set network.modem.device='/dev/cdc-wdm0'
 uci set network.modem.proto='ncm'

Modem is still not connecting.

logread returns repetable block of information:

 daemon.notice netifd: Interface 'modem' is setting up now
 daemon.notice netifd: modem (3753): Starting network modem
 daemon.notice netifd: modem (3753): sending -> 
 daemon.notice netifd: modem (3753): Timeout running AT-command
 daemon.notice netifd: modem (3753): Failed to connect
 daemon.notice netifd: modem (3941): Stopping network modem
 daemon.notice netifd: modem (3941): sending -> 
 daemon.notice netifd: Interface 'modem' is now down

dmesg returns:

[] huawei_cdc_ncm 1-1:1.1: unknown notification 3 received: index 1 len 4
[] huawei_cdc_ncm 1-1:1.1: unknown notification 3 received: index 1 len 4
[] huawei_cdc_ncm 1-1:1.1: unknown notification 3 received: index 1 len 4
[] huawei_cdc_ncm 1-1:1.1: unknown notification 3 received: index 1 len 4
[] Rcv Wcid(1) AddBAReq
[] Start Seq = 000000bc
[] Rcv Wcid(1) AddBAReq
[] Start Seq = 00000290

Below I put some more identification data read back from the modem:

“ATI”

Manufacturer: huawei
Model: E3276
Revision: 21.260.05.00.618
IMEI: xxxxxxxxxxxxxxx
+GCAP: +CGSM,+DS,+ES 

“AT^VERSION?”

^VERSION:BDT:Mar 07 2013, 09:43:01
^VERSION:EXTS:21.260.05.00.618
^VERSION:INTS:
^VERSION:EXTD:UTPS23.009.11.02.618_MAC23.009.11.03.618
^VERSION:INTD:
^VERSION:EXTH:CH1E3276SM Ver.C
^VERSION:INTH:
^VERSION:EXTU:E3276
^VERSION:INTU:
^VERSION:CFG:1004
^VERSION:PRL:

“AT^SYSCFGEX?”

^SYSCFGEX:"00",3FFFFFFF,1,2,800C5

“AT^SYSCFGEX=?”

^SYSCFGEX: ("00","01","02","03"),((2000000400380,"GSM900/GSM1800/WCDMA900/WCDMA2100"),(2a80000,"GSM850/GSM1900/AWS/WCDMA1900"),(3fffffff,"All bands")),(0-2),(0-4),((800c5,"LTE_B1/LTE_B3/LTE_B7/LTE_B8/LTE_B20"),(7fffffffffffffff,"All bands"))

“AT^NDISDUP?”

OK

“AT^NDISDUP=?”

^NDISDUP: (1-20),(0-1)

“AT^SETPORT?”

^SETPORT:A1,A2;12,16,A1,A2

“AT^SETPORT=?”

^SETPORT:1: 3G MODEM
^SETPORT:2: 3G PCUI
^SETPORT:3: 3G DIAG
^SETPORT:5: 3G GPS
^SETPORT:A: BLUE TOOTH
^SETPORT:16: NCM
^SETPORT:A1: CDROM
^SETPORT:A2: SD
^SETPORT:10: 4G MODEM
^SETPORT:12: 4G PCUI
^SETPORT:13: 4G DIAG
^SETPORT:14: 4G GPS

“AT+CPIN?”

+CPIN: READY