How to batch flash multiple firmware's to more than 1 cell modem simulatiously and reliably with fdt2.exe commands for a large production run?

[jyijyi]

I saw other user can make it work

Batch Firmware Update Using fdt2.exe

Try just using -usbport, for each command run: -usbport 1 -usbport 2 -usbport 3 -usbport 4 Works for me, even though windows reports the usb COM port to be 43, 47, 51, 62, etc. I’ve done this with the EM7565 and flashed 4 at once on Windows 10 with a powered usb hub. Make sure there is a space in there in: -usbport 1 Here is an example of one of my commands: fdt2.exe -d g5k -f fw1.cwe fw2.cwe pri1.nvu pri2.nvu -usbport 1 -multi -mi -impref fw1.cwe pri1.nvu