Remix Mini PC: After a Year of Dead Ends, the eMMC Finally Talks

A Remix Mini PC eMMC failure was traced to a missing device tree entry, not bad hardware.

The board booted and initialized the eMMC, but data transfers failed because the I/O rail voltage was not configured.

Comparing the mainline DTS with a BananaPi-M64 setup revealed the missing vqmmc-supply property for the eMMC power domain.

Adding the regulator definition to the DTB enabled the correct bus voltage and restored internal storage access.