The "emmc" designation confirms this programmer is intended for devices using eMMC flash memory rather than the newer UFS (Universal Flash Storage) standard. How to Use the Programmer
After the device accepts prog_emmc_firehose_8953_ddr.mbn , it switches to the Firehose protocol , allowing the user to read, write, or erase the onboard eMMC storage partitions. Specifics of "8953_ddr.mbn" progemmcfirehose8953ddrmbn
Once in EDL mode, the device communicates via the Sahara protocol to accept the programmer file. The "emmc" designation confirms this programmer is intended