Swap your USB cable and try a different USB port (preferably a USB 2.0 port on the back of a PC, as front ports or USB 3.0 can cause instability). 2. Use the Correct Download Agent (DA)
Often caused by an incompatible Preloader file, preventing the tool from initializing the device's memory. sp flash tool status mmc error
The tool found the storage but failed to write data to it. Swap your USB cable and try a different
These codes are the primary manifestations of an "MMC" or storage failure: sp flash tool status mmc error