i’ve tried these as well if i put the file into a folder and hold down com when it drops into the text mode the screen does go black and i have to disconnect the usb, physically turn it off and on again for it to boot up normally.
when i do it drops straight into scanning reading FAT contents, sees the 1 file added to the drum patch (te-boot.op1) ignoring the file in the root. and then fails to create the drum patch and sits waiting for me to press a key to continue.