There are hardware revisions of the ED64 Plus PCB (Printed Circuit Board). Some revisions are compatible with the "Alt" OS versions used by the community, while others require the specific OS shipped by the seller. If you try to force an incompatible OS, the screen may remain black upon boot.
Alternatively, open the cart’s case (four screws) and look at the USB port. Some early units had a non-functional USB port; later units can be flashed. ed64 plus firmware
: The factory firmware is generally the most stable for standard use on original Nintendo 64 hardware. If your cartridge becomes unusable after an update, it is highly recommended to revert to the original files provided by the manufacturer or reputable community archives. ALT64 Firmware There are hardware revisions of the ED64 Plus
Newer firmware solves many, but not all, of these problems. Alternatively, open the cart’s case (four screws) and
: Like the EverDrive X5, the firmware requires you to press the reset button on the console to write save data from the cart's internal memory to the SD card. Failure to do this often results in lost progress. Alternative OS Options