78081g503.ic655 Not Found

: For certain hardware variants, the security chip or specific BIOS version (like .ic655 ) may not have a functional digital copy available, leading to emulation failure for those specific board versions. Troubleshooting and Resources To resolve this, you can take the following steps:

: Search for a "MAME BIOS Pack" that matches your current MAME version (e.g., "MAME 0.275 BIOS set"). Place Files Correctly : Ensure the BIOS file is placed in your MAME folder. Do 78081g503.ic655 not found