[adamsonh]

# filename: 05c6uMa=Qualcomm
#------
#######################################################
# Devices with Qualcomm chip, ST809
# By adamsonh

DefaultVendor = 0x05c6
DefaultProduct = 0x1000

TargetVendor = 0x05c6
TargetProduct = 0x6000

MessageContent = "5553424312345678000000000000061b000000030000000000000000000000"
#------

With this config, the device can be switched to modem mode with error messages

Setting up communication with interface 0 ...
Using endpoint 0x05 for message sending ...
Trying to send message 1 to endpoint 0x05 ...
OK, message successfully sent
Reading the response to the message (CSW) ...
OK, response successfully read (0 bytes).
Resetting response endpoint 0x85
Error resetting endpoint: -71
Resetting message endpoint 0x05
Error resetting endpoint: -71
Device is gone, skipping any further commands
-> Run lsusb to note any changes. Bye.

[Josh]

This configuration would affect countless phones and probably other devices that don't want to be switched at all ...

E.g. my Samsung phone would be handled by it, with unforeseeable consequences. The same goes for some devices from Option (the modem maker).

I'm afraid you need to find annother attribute that is unique to your model. Check the SCSI identification if you only get the standard Qualcomm USB attribute content.

Exactly this problem is the reason for much of usb_modeswitch's checking and "reasoning". Look how many "05c6:1000" variants are supported already.