Modem ID Switched from Huawei GSM to Qualcom CDMA

Problems and successes with specific brands/models of networking hardware.
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caffeinfx
Posts: 22
Joined: Thu 08 May 2014, 21:32

Modem ID Switched from Huawei GSM to Qualcom CDMA

#1 Post by caffeinfx »

I have rebranded Huawei airflash GSM modem. Somehow its vendor id switched to Qualcom, Inc CDMA modem. it was had vendor/product id 12d1:xxxx now it have 05c6:0021 .now i can't connect to the internet with it because some AT commands doesn't work. it was work fine before switching to Qualcom.
AT
OK
ATZ
ERROR
ATDT
ERROR
AT+CSQ
+CSQ: 7,99

OK

how i can switch my modem back to Huawei vendor, i forgot the product id before, i tried with usb_modeswitch but not sure how to use it.

lsusb:

Code: Select all

Bus 001 Device 005: ID 1908:0226 GEMBIRD 
Bus 001 Device 003: ID 05e3:0741 Genesys Logic, Inc. 
Bus 002 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 003 Device 002: ID 5136:4678  
Bus 004 Device 003: ID 05c6:0021 Qualcomm, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
dmesg:

Code: Select all

[ 1710.806536] usb 4-2: new full-speed USB device number 2 using uhci_hcd
[ 1710.957935] usb 4-2: New USB device found, idVendor=05c6, idProduct=0021
[ 1710.957947] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1710.957955] usb 4-2: Product: Qualcomm CDMA Technologies MSM
[ 1710.957962] usb 4-2: Manufacturer: Qualcomm, Incorporated
[ 7189.437366] usbcore: registered new interface driver usbserial
[ 7189.437406] usbcore: registered new interface driver usbserial_generic
[ 7189.437438] usbserial: USB Serial support registered for generic
[ 7189.466673] usbcore: registered new interface driver option
[ 7189.466712] usbserial: USB Serial support registered for GSM modem (1-port)
[ 7189.468909] option 4-2:1.0: GSM modem (1-port) converter detected
[ 7189.469045] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB0
[ 7189.469143] option 4-2:1.1: GSM modem (1-port) converter detected
[ 7189.469240] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB1
[ 7905.130119] usbcore: registered new interface driver cdc_acm
[ 7905.130127] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 8168.383386] usbcore: registered new interface driver cdc_ether
[10159.249079] usb 4-2: USB disconnect, device number 2
[10159.249354] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[10159.249386] option 4-2:1.0: device disconnected
[10159.249637] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1

caffeinfx
Posts: 22
Joined: Thu 08 May 2014, 21:32

#2 Post by caffeinfx »

Sorry for noise, i suspect my modem get memory corruptions since i can't look it's IMEI again.

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