On my E303 to go to fallback mode I had to use the following as the above didn't work for me sudo usb_modeswitch -v 0x12d1 -p 0x1f01 -n -I -M 55534243123456780000000000000011060000000000000000000000000000 without the -n -I, mine wouldn't switch form 1f01. I needed it to become 12d1:1001 to work as a...

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Hi I am using modeswitch 1.2.3 in a Pi environment with a Huawei E303 modem. Had many issues but ultimately by using the following (not certain exactly what all the flags do), it works. sudo usb_modeswitch -b2 -v 0x12d1 -p 0x1f01 -n -I -W -M 5553424312345678000000000000001106000000000000000000000000...