Bios Not Avaiable

sorry my ignorance ( but retrobat l I downloaded yesterday) where I can find bios working on systems colecovision / intellivision / Philips CDI ( I tried to download several emulators from retrobat or bios from the arcade archives but nothing put in the bios folder subfolder of the game system anything at startup games gives me the message "not bios avaiable" . there is no possibility to update them automatically
Thank you so much for your help

Hi,

BIOS files are not provided (neither with RetroBat nor with the emulators), google to find.

Yes indeed I have looked for them , but those that I have found and inserted in the appropriate folder do not work me ,Do you have any advice on where to find them?

Main Menu --> Game Settings --> Missing BIOS Check

Or you can check on the corresponding system on the wiki, where you got a remind of the bios required, the place to put it and the md5 hash that should have the file.

https://wiki.retrobat.org/systems-and-emulators/supported-game-systems