Which of the SP Flash Tool are you currently running?
The MediaTek VCOM drivers are not handshaking correctly with Windows. sp flash tool error status ext ram exception link
STATUS_EXT_RAM_EXCEPTION_LINK is a symptom, not a single root cause. Systematically rule out software/driver/firmware mismatches and connection issues first; only then move on to suspect hardware. Follow safe flashing practices—use correct scatter/DA, back up data, and prefer “Firmware Upgrade” over destructive options unless necessary. Which of the SP Flash Tool are you currently running
In SP Flash Tool, click "Choose" next to and select the specialized file. 2. Choose the Correct SP Flash Tool Version DA/scatter file names
If you tell me the exact device model, firmware build, DA/scatter file names, and the SP Flash Tool version you’re using, I can give a targeted sequence to try next.
: The standard DA included with SP Flash Tool may not support your specific RAM vendor (e.g., Samsung, Micron, SK Hynix).