BlueSCSI v2 won't appear as USB device in linux.

[funniman-exe]

I'm trying to update the firmware of my BlueSCSI v2. According to the documentation, I am supposed to plug it into my computer with a Micro-USB cable, holding down the BOOTSEL button. The first two times I did this, linux would pretend the device didn't exist for about 45 seconds, before detecting it, then immediately stating it had been disconnected. Every subsequent attempt has resulted in linux not detecting the device at all. There are no logs in dmesg mentioning the device, nothing has been written to the sd card by the BlueSCSI, and picotool also fails to detect the device.

I have no clue what could be happening here, and it would be greatly appreciated if someone could help me.

[funniman-exe]

Update: I decided to put a hard drive image on the sd card, and boot my Mac SE with it connected. The Macintosh SE detects the hard drive image, and finally a log file is generated, but the BlueSCSI still doesn't update firmware off the SD card, and still doesn't show up in linux when in BOOTSEL mode.