Imx6ul new emmc
From embeddedTS Manuals
Due to an EOL on the older Micron MTFC4GMDEA-4M IT part, the replacement Micron MTFC4GACAJCN-4M IT has been qualified for use on this board. This new eMMC flash includes write reliability enabled by default. This will improve reliability for power loss events without requiring user intervention.
This updated part also has a larger erase block size which will require an updated production processes for those using the "emmc_reliability" script. This new chipset will require the latest version including this patch to function correctly.