Smartphone Flash Tool -runtime Trace Mode-l Jun 2026

| Log Entry Example | Meaning | |-------------------|---------| | [TRACE-l] DA_VER: 1.2.3 | Download agent version. Mismatches cause errors. | | [TRACE-l] EMMC_CID: 150100... | Full eMMC identification—validates hardware. | | [TRACE-l] SEND_BOOTLOADER: size=0x1A000 | The tool just sent the bootloader partition. | | [TRACE-l] ACK_TIMEOUT: 0x0103 -l | Acknowledgment timeout at a specific command code. | | [TRACE-l] NAK: Checksum fail @ sector 0x3FF | Negative acknowledgment—your ROM image may be corrupted. |

Because this is a hidden/advanced feature, you won’t find a simple checkbox. Here is the step-by-step method to activate runtime trace mode with level detail: Smartphone Flash Tool -runtime Trace Mode-l

Once activated, a separate trace console window will appear, displaying low-level system events. | Full eMMC identification—validates hardware

The exact syntax varies by version. For SP Flash Tool v5.19xx and above, the -runtime argument is recognized. The -l flag forces line-by-line flushing instead of buffered logging. | | [TRACE-l] NAK: Checksum fail @ sector

Runtime Trace Mode is an advanced feature in the Smartphone Flash Tool that allows users to monitor the flashing process in real-time. When enabled, it generates detailed logs and traces of the flashing process, providing valuable insights into the communication between the tool, the device, and the firmware.