Without the actual binary, analysis steps are outlined:
: Wiping the persist or misc partitions to bypass certain locks or clear corrupted settings.
Another software tool on your computer is trying to monitor the COM port, or the eMMC chip has physically degraded to a "Read-Only" hardware failure state.
: This could refer to a specific Qualcomm chipset model. The MSM8953, for example, is a mid-range processor from Qualcomm, known for being used in various smartphones.
The target file DDR.mbn is a specifically built for the MSM8953 SoC (System-on-Chip). Unlike a “full” programmer that may fit into limited internal memory (OCIMEM/ TCM), the DDR.mbn is designed to be large (typically 600 KB to 2 MB) and runs from DDR SDRAM , offering full eMMC command support.