MiyooCFW VS RG350_adam_image

Try getting a second SD card and flashing it with the Miyoo cfw from here. It's probably something corrupted on the card.

And/or just install one of the nightly builds yourself and see what issues you find. They can be found under the actions tab on github, although I think you have to be logged in to actually see the download: https://github.com/TriForceX/MiyooCFW/actions/workflows/build.yml

Generally speaking RetroArch allows installing and removing cores, but no clue how it works on this device and what the steps are if its possible. This article or tutorial might interest you: https://github.com/TriForceX/MiyooCFW/wiki/RetroArch-Setup I think you should be able to download a core from this place https://buildbot.libretro.com/nightly/dingux/miyoo-arm32/latest/ and just put it into the cores folder in RetroArch on your device. But there might be additional steps needed to integrate them into the system, not sure at this point. BTW you should have added the name of the device into the post title. Such generic titles aren't helpful.

I have used already the cfw for this model https://github.com/TriForceX/MiyooCFW/actions/runs/4988520114

quick question: what is the difference between the adam_v2.1.img.xz and adam_v2.1_PGv1.img.xz ?

The 350P was the first device that got me into this space. It still holds up today, and you're definitely going to enjoy it! Check out the Adam Image firmware for it too.

how'd you get your 280V to play in that aspect ratio instead of stretched? i thought it couldn't save overrides, etc? unless you're not using Adam Image?

Adam Image is what you're looking for if you want to go with the RG350.

Adam Image - a custom image for JZ4770 chipset devices that sets up SimpleMenu frontend and Retroarch

You'll probably want to flash that device to Adam image. Here's more info from Russ.

If I went the RG280V route, then I'd install Adam firmware, however, I'm not sure if that has kiosk mode. If anyone could confirm that, then it'd be appreciated.