try1

[root@archlinux dominik]# usb_modeswitch -v 12d1 -p 1805 -C 0xff -M"55534243123456780600000080000601000000000000000000000000000000"
Look for target devices ...
 No devices in target mode or class found
Look for default devices ...
   product ID matched
 Found devices in default mode (1)
Access device 053 on bus 004
Get the current device configuration ...
 OK, got current device configuration (1)
Use interface number 0
Use endpoints 0x01 (out) and 0x81 (in)
Inquire device details; driver will be detached ...
Looking for active driver ...
 No active driver found. Detached before or never attached
 INQUIRY message failed (error -1)
Error: could not get description string "manufacturer"
Error: could not get description string "product"

USB description data (for identification)
-------------------------
Manufacturer:
     Product:
  Serial No.: not provided
-------------------------
Looking for active driver ...
 No active driver found. Detached before or never attached
Set up interface 0
Use endpoint 0x01 for message sending ...
Trying to send message 1 to endpoint 0x01 ...
 Sending the message returned error -1. Try to continue
Reset response endpoint 0x81
 Could not reset endpoint (probably harmless): -99
Reset message endpoint 0x01
 Could not reset endpoint (probably harmless): -99
-> Run lsusb to note any changes. Bye!