Re-reading your information, there is something strange in the system output of your second post: "Aug 11 21:10:34 gate pppd[13329]: Failed to open /dev/serial/by-id/usb-WeTelecom_Incorporated_Wetelecom_Mobile_Products-if00-port0: No such file or directory" Did you ever install Linux soft...

Are you on a USB 3 port by any chance? There have been reports of failed mode-switching on these ports due to a changed kernel setting. There is an instant solution - increase the "delay_use" of the usbstorage driver before re-plugging: # echo 3 >/sys/module/usb_storage/parameters/delay_u...

WeTelecom WM-D300 - MTS Ukraine Looks like I need help ) This config works well from command line. But when I try to run it from udev, device failed to switch. And even more, it's failed to switch until I remove it and then plug it in again. Looks like it's usb_modeswitch bug? Here's the log: USB_M...

Thanks a lot ! This will go into the next data package release. Did you check if the ReleaseDelay is required? What happens if you leave out the third MessageContent? Don't understan what's going on. When I use pure usb_modeswitch -с without any changes to udev, it works just fine. Found that "...

Did you check if the ReleaseDelay is required? What happens if you leave out the third MessageContent? Sorry, it looks like something is still wrong. It's working pretty fine when I use usb_modeswitch -с , but now I tried to remove the device and then plug it in again and it failed to switch. Have ...

Thanks a lot ! This will go into the next data package release. Did you check if the ReleaseDelay is required? What happens if you leave out the third MessageContent? Sorry, it looks like something is still wrong. It's working pretty fine when I use usb_modeswitch -с , but now I tried to remove the...

WeTelecom WM-D300 - MTS Ukraine ATTRS{idVendor}=="22de", ATTRS{idProduct}=="6803", RUN+="usb_modeswitch '%b/%k'" Seems like it's working with the std settings, pls. add it to the dev. db: $cat 22de:6803 # WeTelecom WM-D300 DefaultVendor= 0x22de DefaultProduct=0x6803 Tar...