I wasn't able to work on RetroX for some time, but now I have some good news. The video that starts this topic is RetroX running with themes as a proof of concept. This is, the code is running inside RetroX but it doesn't use RetroX, it only uses the basics: systems and games. There is no accounts, ...

great news!

As for your last message I would try another card.

Also, when the dumps are from a specific MAME version and you are using a different MAME version the emulator will crash and you will see the options menu. If that is the case, you can select the MAME version in the game details screen.

Those games are working with MAME 2001. Look for MAME 0.37b in Google. I cannot provide links

Try just one.

Reasons why RetroX can say that no files were found

1) There are no files
2) The folder cannot be read (es explorer taking it, corrupt filesystem, etc)
3) There are files, but not one is in the expected format (one zip for each ROM file)

You can try the 2001 or 2003 pack from RetroMania

Use the "add one game" option, navigate to your folder and send us a screenshot of what you see there

(Make sure to not only close ES Explorer, but unmount any drive that it may be using)

Which MAME version are you using? I think that 2001 has that button disabled

Nice! I'll have to check that case!

Enjoy!

Some people have reported issues when the game media is zipped. If you have them zipped, try with them unzipped.