when using usb_modeswitch-1.1.1 with the zte mf637 cellular modem , it worked fine. After upgrading to 1.1.2 the pc no longer finds the modem Reproducible: Always Steps to Reproduce: 1.1.1 /var/log/messges May 19 13:41:59 zahi kernel: usb 3-1: new full speed USB device using uhci_hcd and address 5 May 19 13:41:59 zahi kernel: usb 3-1: not running at top speed; connect to a high speed hub May 19 13:41:59 zahi kernel: usb 3-1: New USB device found, idVendor=19d2, idProduct=0031 May 19 13:41:59 zahi kernel: usb 3-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4 May 19 13:41:59 zahi kernel: usb 3-1: Product: ZTE CDMA Technologies MSM May 19 13:41:59 zahi kernel: usb 3-1: Manufacturer: ZTE,Incorporated May 19 13:41:59 zahi kernel: usb 3-1: SerialNumber: 1234567890ABCDEF May 19 13:41:59 zahi kernel: usb-storage: USB Mass Storage device detected May 19 13:41:59 zahi kernel: usb-storage: -- associate_dev May 19 13:41:59 zahi kernel: usb-storage: Vendor: 0x19d2, Product: 0x0031, Revision: 0x0000 May 19 13:41:59 zahi kernel: usb-storage: Interface Subclass: 0x06, Protocol: 0x50 May 19 13:41:59 zahi kernel: usb-storage: Transport: Bulk May 19 13:41:59 zahi kernel: usb-storage: Protocol: Transparent SCSI May 19 13:41:59 zahi kernel: scsi3 : usb-storage 3-1:1.2 May 19 13:41:59 zahi kernel: usb-storage: *** thread sleeping. May 19 13:41:59 zahi kernel: usb-storage 3-1:1.2: device found May 19 13:41:59 zahi kernel: usb-storage 3-1:1.2: waiting for device to settle before scanning May 19 13:42:00 zahi kernel: usbcore: registered new interface driver usbserial May 19 13:42:00 zahi kernel: usbserial: USB Serial Driver core May 19 13:42:00 zahi kernel: USB Serial support registered for GSM modem (1-port) May 19 13:42:00 zahi kernel: option 3-1:1.0: GSM modem (1-port) converter detected May 19 13:42:00 zahi kernel: usb 3-1: GSM modem (1-port) converter now attached to ttyUSB0 May 19 13:42:00 zahi kernel: option 3-1:1.1: GSM modem (1-port) converter detected May 19 13:42:00 zahi kernel: usb 3-1: GSM modem (1-port) converter now attached to ttyUSB1 May 19 13:42:00 zahi kernel: option 3-1:1.3: GSM modem (1-port) converter detected May 19 13:42:00 zahi kernel: usb 3-1: GSM modem (1-port) converter now attached to ttyUSB2 May 19 13:42:00 zahi kernel: usbcore: registered new interface driver option May 19 13:42:00 zahi kernel: option: v0.7.2:USB Driver for GSM modems May 19 13:42:00 zahi usb_modeswitch: switched to 19d2:0031 (ZTE,Incorporated: ZTE CDMA Technologies MSM) May 19 13:42:01 zahi logger: usb_modeswitch: adding device ID 19d2:0031 to driver "option" May 19 13:42:04 zahi kernel: usb-storage: usb_stor_control_msg: rq=fe rqtype=a1 value=0000 index=02 len=1 May 19 13:42:04 zahi kernel: usb-storage: GetMaxLUN command result is 1, data is 0 May 19 13:42:04 zahi kernel: usb-storage: queuecommand called May 19 13:42:04 zahi kernel: usb-storage: *** thread awakened. May 19 13:42:04 zahi kernel: usb-storage: Command INQUIRY (6 bytes) May 19 13:42:04 zahi kernel: usb-storage: 12 00 00 00 24 00 May 19 13:42:04 zahi kernel: usb-storage: Bulk Command S 0x43425355 T 0x1 L 36 F 128 Trg 0 LUN 0 CL 6 May 19 13:42:04 zahi kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes May 19 13:42:04 zahi kernel: usb-storage: Status code 0; transferred 31/31 May 19 13:42:04 zahi kernel: usb-storage: -- transfer complete May 19 13:42:04 zahi kernel: usb-storage: Bulk command transfer result=0 May 19 13:42:04 zahi kernel: usb-storage: usb_stor_bulk_transfer_sglist: xfer 36 bytes, 1 entries May 19 13:42:04 zahi kernel: usb-storage: Status code 0; transferred 36/36 May 19 13:42:04 zahi kernel: usb-storage: -- transfer complete May 19 13:42:04 zahi kernel: usb-storage: Bulk data transfer result 0x0 May 19 13:42:04 zahi kernel: usb-storage: Attempting to get CSW... May 19 13:42:04 zahi kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes May 19 13:42:04 zahi kernel: usb-storage: Status code 0; transferred 13/13 May 19 13:42:04 zahi kernel: usb-storage: -- transfer complete May 19 13:42:04 zahi kernel: usb-storage: Bulk status result = 0 May 19 13:42:04 zahi kernel: usb-storage: Bulk Status S 0x53425355 T 0x1 R 0 Stat 0x0 May 19 13:42:04 zahi kernel: usb-storage: scsi cmd done, result=0x0 May 19 13:42:04 zahi kernel: usb-storage: *** thread sleeping. May 19 13:42:04 zahi kernel: scsi 3:0:0:0: Direct-Access ZTE MMC Storage 2.31 PQ: 0 ANSI: 2 Actual Results: 1.1.2 : May 19 13:35:38 zahi kernel: usb 3-1: new full speed USB device using uhci_hcd and address 3 May 19 13:35:38 zahi kernel: usb 3-1: not running at top speed; connect to a high speed hub May 19 13:35:38 zahi kernel: usb 3-1: New USB device found, idVendor=19d2, idProduct=2000 May 19 13:35:38 zahi kernel: usb 3-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4 May 19 13:35:38 zahi kernel: usb 3-1: Product: ZTE CDMA Technologies MSM May 19 13:35:38 zahi kernel: usb 3-1: Manufacturer: ZTE,Incorporated May 19 13:35:38 zahi kernel: usb 3-1: SerialNumber: P673A3CDROMMS+MS May 19 13:35:38 zahi kernel: usb-storage: USB Mass Storage device detected May 19 13:35:38 zahi kernel: usb-storage: -- associate_dev May 19 13:35:38 zahi kernel: usb-storage: Vendor: 0x19d2, Product: 0x2000, Revision: 0x0000 May 19 13:35:38 zahi kernel: usb-storage: Interface Subclass: 0x06, Protocol: 0x50 May 19 13:35:38 zahi kernel: usb-storage: Transport: Bulk May 19 13:35:38 zahi kernel: usb-storage: Protocol: Transparent SCSI May 19 13:35:38 zahi kernel: scsi1 : usb-storage 3-1:1.0 May 19 13:35:38 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:38 zahi kernel: usb-storage 3-1:1.0: device found May 19 13:35:38 zahi kernel: usb-storage 3-1:1.0: waiting for device to settle before scanning May 19 13:35:43 zahi kernel: usb-storage: usb_stor_control_msg: rq=fe rqtype=a1 value=0000 index=00 len=1 May 19 13:35:43 zahi kernel: usb-storage: GetMaxLUN command result is 1, data is 0 May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Command INQUIRY (6 bytes) May 19 13:35:43 zahi kernel: usb-storage: 12 00 00 00 24 00 May 19 13:35:43 zahi kernel: usb-storage: Bulk Command S 0x43425355 T 0x1 L 36 F 128 Trg 0 LUN 0 CL 6 May 19 13:35:43 zahi kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes May 19 13:35:43 zahi kernel: usb-storage: Status code 0; transferred 31/31 May 19 13:35:43 zahi kernel: usb-storage: -- transfer complete May 19 13:35:43 zahi kernel: usb-storage: Bulk command transfer result=0 May 19 13:35:43 zahi kernel: usb-storage: usb_stor_bulk_transfer_sglist: xfer 36 bytes, 1 entries May 19 13:35:43 zahi kernel: usb-storage: Status code 0; transferred 36/36 May 19 13:35:43 zahi kernel: usb-storage: -- transfer complete May 19 13:35:43 zahi kernel: usb-storage: Bulk data transfer result 0x0 May 19 13:35:43 zahi kernel: usb-storage: Attempting to get CSW... May 19 13:35:43 zahi kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes May 19 13:35:43 zahi kernel: usb-storage: Status code 0; transferred 13/13 May 19 13:35:43 zahi kernel: usb-storage: -- transfer complete May 19 13:35:43 zahi kernel: usb-storage: Bulk status result = 0 May 19 13:35:43 zahi kernel: usb-storage: Bulk Status S 0x53425355 T 0x1 R 0 Stat 0x0 May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x0 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: scsi 1:0:0:0: CD-ROM ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2 May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Bad LUN (0:1) May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x40000 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Bad target number (1:0) May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x40000 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Bad target number (2:0) May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x40000 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Bad target number (3:0) May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x40000 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Bad target number (4:0) May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x40000 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Bad target number (5:0) May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x40000 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Bad target number (6:0) May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x40000 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: usb-storage: queuecommand called May 19 13:35:43 zahi kernel: usb-storage: *** thread awakened. May 19 13:35:43 zahi kernel: usb-storage: Bad target number (7:0) May 19 13:35:43 zahi kernel: usb-storage: scsi cmd done, result=0x40000 May 19 13:35:43 zahi kernel: usb-storage: *** thread sleeping. May 19 13:35:43 zahi kernel: usb-storage 3-1:1.0: scan complete
*** This bug has been marked as a duplicate of bug 320549 ***