Apart from completely disabling usb_modeswitch (Ralph's suggestion in comment #12), it is also possible to disable usb_modeswitch for this particular device, by commenting out this line:
# MediaTek MT6276M, MediaTek MT6276M ATTR{idVendor}=="0e8d", ATTR{idProduct}=="0002", RUN+="usb_modeswitch '%b/%k'" in the file /lib/udev/rules.d/40-usb_modeswitch.rules Solves the problem in my case. ** Changed in: linux (Ubuntu) Status: Expired => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1171638 Title: 0e8d:0002 [SiS-661GX] phone won't mount Status in “linux” package in Ubuntu: Confirmed Bug description: I have no idea why the phone won't mount. see http://askubuntu.com/questions/284214/cannot-mount-cell-phone-as-usb-mass-storage-device where I was told to file as a bug. A bug of what, I don't know. "something" has a bug. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-27-generic 3.5.0-27.46 ProcVersionSignature: Ubuntu 3.5.0-27.46-generic 3.5.7.7 Uname: Linux 3.5.0-27-generic i686 ApportVersion: 2.6.1-0ubuntu10 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: thufir 2608 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory: 'iw' CurrentDmesg: [ 48.557787] vesafb: scrolling: redraw [ 48.557791] vesafb: Truecolor: size=8:8:8:8, shift=24:16:8:0 [ 48.560536] vesafb: framebuffer at 0xd8000000, mapped to 0xf8880000, using 3072k, total 3072k [ 48.560867] Console: switching to colour frame buffer device 128x48 [ 48.560899] fb0: VESA VGA frame buffer device Date: Mon Apr 22 15:14:07 2013 HibernationDevice: RESUME=UUID=1b76e749-4b13-4187-969f-082ad3721f43 IwConfig: lo no wireless extensions. eth0 no wireless extensions. eth1 no wireless extensions. Lsusb: Bus 004 Device 002: ID 046d:c00e Logitech, Inc. M-BJ58/M-BJ69 Optical Wheel Mouse 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 MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-27-generic root=/dev/mapper/hostname-root ro splash quiet vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.5.0-27-generic N/A linux-backports-modules-3.5.0-27-generic N/A linux-firmware 1.95 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2005 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: 6.00 PG dmi.board.name: SiS-661GX dmi.chassis.type: 3 dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd05/19/2005:svn:pn:pvr:rvn:rnSiS-661GX:rvr:cvn:ct3:cvr: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1171638/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp