Setup is as follows:
Fresh installation of MX, latest version with PAE, connect device and inside /dev. we get 4 new ttyUSB entries numbered 0-3
Install all updates, no additional software, reboot and connect the device, nothing added, therefore not usable as a modem.
Usually, these devices are known to flip from a CD Rom device to a modem device if they see support already present in the OS and running from a LIVE-USB, the device is doing just that, but after the updates, it's no longer happening.
Below are the dmesg entries showing what is happening.
MX-14.2 Symbiosis 30 June 2014 running from live-USB (identical when installed)
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usb 3-2: new high-speed USB device number 8 using xhci_hcd
usb 3-2: New USB device found, idVendor=19d2, idProduct=f006
usb 3-2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
usb 3-2: Product: ZTE CDMA Technologies MSM
usb 3-2: Manufacturer: ZTE, Incorporated
hid-generic 0003:19D2:F006.0004: hiddev0,hidraw1: USB HID v1.10 Device [ZTE, Incorporated ZTE CDMA Technologies MSM] on usb-0000:00:14.0-2/input0
usb 3-2: USB disconnect, device number 8
usb 3-2: new high-speed USB device number 9 using xhci_hcd
usb 3-2: New USB device found, idVendor=19d2, idProduct=2000
usb 3-2: New USB device strings: Mfr=3, Product=2, SerialNumber=4
usb 3-2: Product: ZTE CDMA Technologies MSM
usb 3-2: Manufacturer: ZTE,Incorporated
usb 3-2: SerialNumber: P673A1VDF_MS
usb-storage 3-2:1.0: USB Mass Storage device detected
scsi9 : usb-storage 3-2:1.0
usb 3-2: USB disconnect, device number 9
usb 3-2: new high-speed USB device number 10 using xhci_hcd
usb 3-2: New USB device found, idVendor=19d2, idProduct=f006
usb 3-2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
usb 3-2: Product: ZTE CDMA Technologies MSM
usb 3-2: Manufacturer: ZTE, Incorporated
hid-generic 0003:19D2:F006.0005: hiddev0,hidraw1: USB HID v1.10 Device [ZTE, Incorporated ZTE CDMA Technologies MSM] on usb-0000:00:14.0-2/input0
usb 3-2: USB disconnect, device number 10
usb 3-2: new high-speed USB device number 11 using xhci_hcd
usb 3-2: New USB device found, idVendor=19d2, idProduct=2002
usb 3-2: New USB device strings: Mfr=4, Product=3, SerialNumber=5
usb 3-2: Product: ZTE CDMA Technologies MSM
usb 3-2: Manufacturer: ZTE,Incorporated
usb 3-2: SerialNumber: 1234567890ABCDEF
option 3-2:1.0: GSM modem (1-port) converter detected
usb 3-2: GSM modem (1-port) converter now attached to ttyUSB0
option 3-2:1.1: GSM modem (1-port) converter detected
usb 3-2: GSM modem (1-port) converter now attached to ttyUSB1
option 3-2:1.2: GSM modem (1-port) converter detected
usb 3-2: GSM modem (1-port) converter now attached to ttyUSB2
option 3-2:1.3: GSM modem (1-port) converter detected
usb 3-2: GSM modem (1-port) converter now attached to ttyUSB3
qmi_wwan 3-2:1.4: cdc-wdm1: USB WDM device
qmi_wwan 3-2:1.4 wwan0: register 'qmi_wwan' at usb-0000:00:14.0-2, WWAN/QMI device, 22:b9:99:38:c0:ea
usb-storage 3-2:1.5: USB Mass Storage device detected
scsi10 : usb-storage 3-2:1.5
scsi 10:0:0:0: Direct-Access Vodafone MMC Storage MMC PQ: 0 ANSI: 2
sd 10:0:0:0: Attached scsi generic sg3 type 0
sd 10:0:0:0: [sdc] Attached SCSI removable disk
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usb 1-1: new high-speed USB device number 3 using xhci_hcd
usb 1-1: New USB device found, idVendor=19d2, idProduct=f006
usb 1-1: New USB device strings: Mfr=3, Product=2, SerialNumber=0
usb 1-1: Product: ZTE CDMA Technologies MSM
usb 1-1: Manufacturer: ZTE, Incorporated
hid-generic 0003:19D2:F006.0002: hiddev0,hidraw1: USB HID v1.10 Device [ZTE, Incorporated ZTE CDMA Technologies MSM] on usb-0000:00:14.0-1/input0
usb 1-1: USB disconnect, device number 3
usb 1-1: new high-speed USB device number 4 using xhci_hcd
usb 1-1: New USB device found, idVendor=19d2, idProduct=2000
usb 1-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4
usb 1-1: Product: ZTE CDMA Technologies MSM
usb 1-1: Manufacturer: ZTE,Incorporated
usb 1-1: SerialNumber: P673A1VDF_MS
usb-storage 1-1:1.0: USB Mass Storage device detected
scsi6 : usb-storage 1-1:1.0
usbcore: registered new interface driver usb-storage
scsi 6:0:0:0: CD-ROM Vodafone USB SCSI CD-ROM USB PQ: 0 ANSI: 2
sr1: scsi-1 drive
sr 6:0:0:0: Attached scsi CD-ROM sr1
sr 6:0:0:0: Attached scsi generic sg2 type 5
Unfortunately, the fault after an update is not totally consistent because I have done this twice and the first time, it continued to work after an update and reboot, but on the next update and reboot, it failed, so I repeated the procedure and retrieved the dmesg reports to post here.
I then tried it on my 3 other MX systems and none of them could produce the modem, all are updated, but what is consistent is it will always work on a live-flash drive without the updates.
I really need to know how to track down the file or app that is causing the failure, if anybody has some understanding on this issue.
Ooh, I have also tried a kernel update to the 3.14 kernel and no dice.
Mike P