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You have an S905X4 or newer device. Those need EmuELEC 4.5+ for proper GPU drivers.

Includes optimized cores for PlayStation (PCSX-ReARMed), N64 (Mupen64Plus), Dreamcast (Flycast), PSP (PPSSPP), and arcade (MAME 2003-Plus). Most games run at full speed on S905X2 and above. emuelec 38 top

Many Android boxes require you to hold a hidden reset button inside the AV port with a toothpick while plugging in the power to boot from the SD card the first time. You have an S905X4 or newer device