I managed to get VBA 1.8 working by using its Network capabilities. I set up my first window to be the host of a link network, and made a second window on the same computer the client and copied in my IP address. For some reason it now works, but doesn't if I use the "single computer" option...
I've been tinkering again with this, and i still can't get it to work. I've tried it without checking the wireless adapter option, but since the original deoxys cart uses the adapter it would force me to reboot with it checked. I've also tried with and without a BIOS, and it fails either way...
I may be wrong, but I think BennVenn's joey supports dumping GB-GBC carts and works on modern devices. Link:
https://bennvenn.myshopify.com/collections/frontpage/products/reader-writer-gen2
Has anyone had any luck getting this to work on an emulator? The only wireless adapter emulator that I've gotten the distribution cart to recognize is vbalink 1.8, but it always crashes either Firered or the cart when they connect.