I've benn reading lots of the Huawei E3372h-350 threads and these issues appear to like mine:
E3372h-153 is switched to 14db mode at recognition. After this the usb_modeswotch process exits with 1: line marke with <<<<<<<<<<<<<<
Code: Select all
Jun 27 17:37:18 MAGRO-HP0 kernel: usb 4-1: USB disconnect, device number 17
Jun 27 17:37:18 MAGRO-HP0 kernel: cdc_ether 4-1:1.0 eth2: unregister 'cdc_ether' usb-0000:04:00.0-1, CDC Ethernet Device
Jun 27 17:37:18 MAGRO-HP0 systemd[1]: Starting Generate issue file for login session...
Jun 27 17:37:18 MAGRO-HP0 systemd[1]: issue-generator.service: Succeeded.
Jun 27 17:37:18 MAGRO-HP0 systemd[1]: Finished Generate issue file for login session.
Jun 27 17:37:36 MAGRO-HP0 kernel: usb 4-1: new high-speed USB device number 18 using xhci_hcd
Jun 27 17:37:37 MAGRO-HP0 kernel: usb 4-1: New USB device found, idVendor=12d1, idProduct=1f01, bcdDevice= 1.02
Jun 27 17:37:37 MAGRO-HP0 kernel: usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jun 27 17:37:37 MAGRO-HP0 kernel: usb 4-1: Product: HUAWEI_MOBILE
Jun 27 17:37:37 MAGRO-HP0 kernel: usb 4-1: Manufacturer: HUAWEI_MOBILE
Jun 27 17:37:37 MAGRO-HP0 kernel: usb 4-1: SerialNumber: 0123456789ABCDEF
Jun 27 17:37:37 MAGRO-HP0 kernel: usb-storage 4-1:1.0: USB Mass Storage device detected
Jun 27 17:37:37 MAGRO-HP0 kernel: scsi host8: usb-storage 4-1:1.0
Jun 27 17:37:37 MAGRO-HP0 mtp-probe[18226]: checking bus 4, device 18: "/sys/devices/pci0000:00/0000:00:1c.6/0000:04:00.0/usb4/4-1"
Jun 27 17:37:37 MAGRO-HP0 mtp-probe[18226]: bus: 4, device: 18 was not an MTP device
Jun 27 17:37:37 MAGRO-HP0 systemd-udevd[18222]: 4-1:1.0: Process 'usb_modeswitch '4-1/4-1:1.0'' [b]failed with exit code 1. <<<<<<<<<<<<<<
Jun 27 17:37:37 MAGRO-HP0 mtp-probe[18232]: checking bus 4, device 18: "/sys/devices/pci0000:00/0000:00:1c.6/0000:04:00.0/usb4/4-1"
Jun 27 17:37:37 MAGRO-HP0 mtp-probe[18232]: bus: 4, device: 18 was not an MTP device
Jun 27 17:37:38 MAGRO-HP0 kernel: usb 4-1: USB disconnect, device number 18
Jun 27 17:37:38 MAGRO-HP0 kernel: usb 4-1: new high-speed USB device number 19 using xhci_hcd
Jun 27 17:37:38 MAGRO-HP0 kernel: usb 4-1: New USB device found, idVendor=12d1, idProduct=14db, bcdDevice= 1.02
Jun 27 17:37:38 MAGRO-HP0 kernel: usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Jun 27 17:37:38 MAGRO-HP0 kernel: usb 4-1: Product: HUAWEI_MOBILE
Jun 27 17:37:38 MAGRO-HP0 kernel: usb 4-1: Manufacturer: HUAWEI_MOBILE
Jun 27 17:37:38 MAGRO-HP0 kernel: cdc_ether 4-1:1.0 eth2: register 'cdc_ether' at usb-0000:04:00.0-1, CDC Ethernet Device, 00:1e:10:1f:00:00
Jun 27 17:37:38 MAGRO-HP0 mtp-probe[18234]: checking bus 4, device 19: "/sys/devices/pci0000:00/0000:00:1c.6/0000:04:00.0/usb4/4-1"
Jun 27 17:37:38 MAGRO-HP0 mtp-probe[18234]: bus: 4, device: 19 was not an MTP device
Jun 27 17:37:38 MAGRO-HP0 systemd-udevd[18222]: Using default interface naming scheme 'sle15-sp3'.
Jun 27 17:37:39 MAGRO-HP0 systemd-udevd[18222]: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable.
Jun 27 17:37:39 MAGRO-HP0 systemd[1]: Starting Generate issue file for login session...
Jun 27 17:37:39 MAGRO-HP0 systemd[1]: issue-generator.service: Succeeded.
Jun 27 17:37:39 MAGRO-HP0 systemd[1]: Finished Generate issue file for login session.
Jun 27 17:37:39 MAGRO-HP0 mtp-probe[18288]: checking bus 4, device 19: "/sys/devices/pci0000:00/0000:00:1c.6/0000:04:00.0/usb4/4-1"
Jun 27 17:37:39 MAGRO-HP0 mtp-probe[18288]: bus: 4, device: 19 was not an MTP device
Jun 27 17:37:41 MAGRO-HP0 ModemManager[1073]: <info> Couldn't check support for device '/sys/devices/pci0000:00/0000:00:1c.6/0000:04:00.0/usb4/4-1': not supported by any plugin
Jun 27 17:38:41 MAGRO-HP0 systemd[1]: Starting Cleanup of Temporary Directories...
Jun 27 17:38:41 MAGRO-HP0 systemd-tmpfiles[18295]: /usr/lib/tmpfiles.d/net-snmp.conf:1: Line references path below legacy directory /var/run/, updating /var/run/net-snmp \u2192 /run/net-snmp; please update the tmpfiles.d/ drop-in file accordingly.
Jun 27 17:38:41 MAGRO-HP0 systemd-tmpfiles[18295]: /usr/lib/tmpfiles.d/vpnc.conf:1: Line references path below legacy directory /var/run/, updating /var/run/vpnc \u2192 /run/vpnc; please update the tmpfiles.d/ drop-in file accordingly.
Jun 27 17:38:41 MAGRO-HP0 systemd[1]: systemd-tmpfiles-clean.service: Succeeded.
Jun 27 17:38:41 MAGRO-HP0 systemd[1]: Finished Cleanup of Temporary Directories.
Jun 27 17:48:41 MAGRO-HP0 systemd[4135]: Starting Cleanup of User's Temporary Files and Directories...
Jun 27 17:48:41 MAGRO-HP0 systemd[4135]: systemd-tmpfiles-clean.service: Succeeded.
Jun 27 17:48:41 MAGRO-HP0 systemd[4135]: Finished Cleanup of User's Temporary Files and Directories.
Works with usb_modeswitch Version 2.5.1