Smartphone Flash Tool -runtime Trace Mode-l Extra Quality -

To access the main storage (eMMC/UFS) and RAM, the Preloader must initialize the EMI settings. If a device has a physically damaged RAM module or incorrect scatter file parameters, the runtime trace will show an immediate halt during the EMI configuration log. How to Configure and Enable Tracing

: On modern devices with locked bootloaders (MT6765, MT6833, MT6893), enabling runtime trace might trigger anti-debugging mechanisms that permanently blow efuses. Only use on devices where you accept this risk.

A customer’s phone loops at the logo. Standard SP Flash Tool fails at 2%. Using -runtime Trace Mode-l , you see: [TRACE] SYSTEM partition hash mismatch – refusing to mount . It turns out the customer flashed a modded ROM that changed partition sizes. The trace reveals the exact sector offset mismatch, allowing you to format the userdata partition via a custom DA before reflashing. Smartphone Flash Tool -runtime Trace Mode-l

Activating Runtime Trace Mode is extremely straightforward, though the method can vary slightly depending on the version of the SP Flash Tool you are using.

[SP Flash Tool (PC)] <--- Real-time Data Logging ---> [MediaTek BootROM/Preloader] | [Runtime Trace Log File] Key Functions To access the main storage (eMMC/UFS) and RAM,

The tool relies entirely on the computer recognizing the device in a pre-boot state. Download and install the verified . Without these operational USB drivers, the tool cannot create the virtual COM port required to establish a diagnostic trace line. The Scatter File

Running is safe for the device, but dangerous for the data . Because you are enabling full protocol visibility: Only use on devices where you accept this risk

Custom bootloader or U-Boot developers use Runtime Trace to verify that memory mapping, clock tree initialization, and secure boot chain validation occur in the correct order. A trace log showing an unexpected branch into a fault handler indicates a logic error in early assembly code.

If a flashing process abruptly stops at 12% or 84%, standard tools simply throw a generic error. Trace Mode pinpoints the exact memory offset address or file partition (e.g., system.img , vendor.img ) where the flash cycle failed. 3. Catching Hardware Faults (EMMC/UFS)