“I deleted Postal 3 . The drive still showed 0 bytes. I used fstrim . Nothing. I booted GParted. The eMMC reported ‘unknown capacity.’ I low-level formatted it. The format completed, but the drive now reported 7.9GB total, not 64GB. The controller had permanently disabled 87% of its blocks to avoid future write failures.”
: While a single data line (DAT0) works, connecting four data lines (DAT0–DAT3) can reduce a 16GB dump time from ~25 minutes to roughly 8 minutes.
It sounds like you’re looking for content related to running from or being installed on an eMMC drive (common in low-end laptops, tablets, and Steam Deck's internal storage).
: The eMMC chip and the programmer's microcontroller (usually an Atmega88 ) must both run on 3.3V for stable operation. Common Repair Use Cases