The fix of Kai-Heng Feng works and the modem becomes available and at least SMS sending via modem-manager-gui works!
(I did only the "Add customized usb_modeswitch configuration" part and re-plugged the device.) Should I still report the issue upstream? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819362 Title: HUAWEI E3531 HSPA+ USB Stick "please report the device ID to the Linux USB developers" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819362/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
