Thank you. I can send SMS with DWM-222 but I need to make
sudo modprobe option;sudo sh -c "echo 2001 7e35 > /sys/bus/usb-serial/drivers/option1/new_id"
after reboot

Hello I have the same dongle. Is there an issue? I have an error on command # sudo usb_modeswitch -K -W -v 2001 -p 7e35 Take all parameters from the command line * usb_modeswitch: handle USB devices with multiple modes * Version 2.5.1 (C) Josua Dietze 2017 * Based on libusb1/libusbx ! PLEASE REPORT ...