Crucially, this happens without halting the device (non-intrusive tracing) or with minimal intrusion, depending on the trace depth selected. The host PC’s flash tool buffers this incoming stream and writes it to storage. For example, in MediaTek’s SP Flash Tool, enabling “Runtime Trace” alongside “UART Log” allows an engineer to see the exact moment the preloader initializes DRAM or the point where a corrupted NAND partition causes a reboot loop.
The output is typically a text file containing hexadecimal addresses, memory blocks, and ASCII messages. Smartphone Flash Tool -runtime Trace Mode-l
is a diagnostic feature within SP Flash Tool that captures real-time execution flow from a MediaTek device’s CPU cores and system-on-chip (SoC) components. Unlike logcat (Android’s userspace logging) or dmesg (kernel ring buffer), Runtime Trace Mode provides non-intrusive, cycle-accurate tracing of: The output is typically a text file containing