The is a critical communication failure that occurs when the tool's Download Agent (DA) cannot properly initialize your device's external RAM (DRAM).
If the drivers are correct, the tool configuration might be the issue. sp flash tool error status ext ram exception
: Ensure you are using the latest version of SP Flash Tool and that you have installed the correct VCOM drivers for your PC. Hardware Connection Disconnect and reconnect the battery if possible. The is a critical communication failure that occurs