Ensure your awbios.zip is from a modern MAME romset (e.g., version 0.185 or newer).
Do you have a specific motherboard model throwing the "BIOS DC AWBiosZip" error? Share your model and BIOS version in the comments below for targeted help. bios dc awbioszip fixed
The BIOS chip itself (usually a 2MB or 4MB SPI flash) may have bad sectors in the region where the awbioszip compressed image is stored. Ensure your awbios
: On some handheld devices, removing and re-copying the files to the dc folder can resolve unexplained detection failures. bios dc awbioszip fixed