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Joined 2 years ago
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Cake day: March 25th, 2024

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  • Most of these are difficult to mess with, because, like you discovered, there’s some kind of internal database of ROMs. Worse, this doesn’t appear to have a JAMMA harness so the board can only be replaced with a similar one.

    I would see if someone from TeamPandory can identify your board for getting a custom firmware on there. I’ve seen a lot of this type of board in which the bottom-of-the-barrel-quality micro SD card suddenly dies, then you lose the encryption key and the board is just garbage.

    At the very least, backup the micro SD card to an image. I use GNOME Disk Manager that’s built into Linux Mint. Programs like balenaEtcher can do it on Windows but like Windows, they have telemetry (spy on you).

    Edit: As others noted, the “S812” is relevant, the board seems to be based on Allwinner H3 like other “Pandora’s Box” (the name is more appropriate than it should be). You could do something like this or rewire the controls into “zero-delay encoders” to turn them into USB controllers to connect to any Pi or PC.

















  • Early PC video cards had a composite video output, and clever programmers have learned to control the artifacts to produce more colors than intended. 8088 MPH by Hornet, CRTC, and DESiRE gets 1024 colors out of a 1981 IBM Color Graphics Adapter… that the 16-color CGA standard was named after. 😂

    PAL consoles can often output RGB just because SCART existed, with NTSC versions of the same consoles only having S-video as the best connection without modification.

    Edit: S-video has fewer artifacts than composite, but that ruins some effects like turning the “transparency” of water in Sonic the Hedgehog into a checkerboard. The checkerboard was always there, but the blurring of composite made it appear to just be darker shades of the colors behind it (dithering). The illusion of more colors was important for Sega’s 512-color Mega Drive when Nintendo’s SNES had a full 16-bit palette of over 32,000 colors and “real transparency” (selectively replacing pixels with a lighter/darker shade).