This draft assumes the feature is a diagnostic/logging mode within a tool used for flashing firmware (e.g., SP Flash Tool, Qualcomm QFIL, or similar). You can adjust the technical specifics to match your exact tool.
This is precisely where -runtime Trace Mode-l becomes indispensable. It allows you to see why the handshake is failing. For example, the trace log might reveal: Smartphone Flash Tool -runtime Trace Mode-l
Runtime Trace Mode allows engineers and technicians to monitor the device’s bootloader, kernel, and flash operations in real-time, rather than solely relying on post-mortem logs or success/failure flags. This draft assumes the feature is a diagnostic/logging
Users can typically enable this feature by navigating to the SP Flash Tool