Huawei E1750

About
The E1750 is a 3G modem (HSUPA/HSDPA/UMTS 2100 МHZ, EDGE/GPRS/GSM 850/900/1800/1900 MHz with microSD card reader by HUAWEI.

Additional soft
In default the kernel defines the E1750 as a CD-ROM and mass storage device. For switch to the modem mode should use Additional configure for usb_modeswitch not needed. If all OK dmesg show something like this: dmesg there the sdb is a microSD in the modem slot. After this you can use /dev/ttyUSB0 for pppd connection