Uploaded October 2010 | Updated September 2026, 1 day ago

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This is showing how I removed some of the roms from my Street Fighter II: Champion Edition board, erased them, and then reporgrammed them with Street Fighter II: Hyper Fighting data. This was the first time I'd ever used the eprom programmer so it was a learning process, but overall was pretty easy. In the software, I found the bullets on the right are only for when you use "auto" mode, which is probably not what you ever want to do, and the buttons on the left and top are to just perform the actions (read, write, etc). Also, I think the checksums reported by the programmer are calculated differently, which is why they didn't match MAME's checksums but still worked (checksums matched when viewing the zip file via winrar). The programmer I used is a GQ-4X.

Here are two videos that helped me a few weeks ago when I was first thinking about buying the programmer:

How To Use a Rom Programmer
youtube.com/watch?v=iBX0dHSUFbs

SF2HF upgrade for SF2CE board
youtube.com/watch?v=qi71DrhUTnc