Verify its a good image, can you net boot that same image? if it wont net boot, then the image is wrong.
You also may need export bios..
https://www.arcade-projects.com/threads/chihiro-type-3-new-firmware.1473/post-102529
Correct, but required a modified fw version the darksoft posted ( and since was removed, or maybe put back up ) as it broke all existing cf adapters. - and only worked on type3 chihiro
were are you located, there are a few people who can update the flash for you. (myself, mitsurugi-w , and i am sure others , you can if your ok with replaced tsop48. ) mitrurugi-w probably has the update gdrom which makes it 5000x easier.. ( I have to do flash replacement ) - he was offering...
SO, How does one get this in the US? also, your site that has the files blocks the US users.. so can't download anything. I want to setup Lindberg in my Chiro OR2 Cab.
Have you tried using a CF Card? the computer isn't going to sleep or anything correct? try using "transfergame.exe" , there is a keep alive that needs to be sent to keep the game from rebooting.