The released Pocket Reform u-boot flash image for A311D/BPI-CM4 (tag 2026-01-28) seems to be broken. https://source.mnt.re/reform/reform-a311d-uboot/-/jobs/18023 c96ea54a1947ce59cc48b1cc2d7d1dce494d8ff9 meson-g12b-bananapi-cm4-mnt-pocket-reform-flash.bin Observed behavior (verified over UART): - Booting from either eMMC or SD with this image loops at early boot: - `Load BL3X ...` - `BL33 CHK: 0x000000ff` - `reset...` - System never reaches normal U-Boot runtime. - https://pastebin.com/NfvW4Q8C Comparison: - `flash.bin` (a locally built image from same tag) boots. - `flash.bin` (released artifact) fails with the BL33 reset loop above. - Binary/FIP diff shows the break is in BL33 packaging: - BL33 entry size in working image: `0x0d1400` - BL33 entry size in released image: `0x0d0a00` (exactly `0xA00` smaller) - Other FIP entries are identical. - Final u-boot image sizes match this delta: - working: `1594880` bytes - broken: `1592320` bytes My only real concern here is that if someone uses reform-tools to update emmc on the A311D they will need a fair amount of embedded systems engineering knowledge and a carrier board to get their A311D working again. It took me on a stroll down memory lane, but I want to save unsuspecting folks the journey. :slight_smile: