Smartphone Flash Tool -runtime Trace Mode-l Jun 2026

It displays detailed logs of the handshaking process between the tool and the device's bootloader.

While the is powerful, you might pair it with: Smartphone Flash Tool -runtime Trace Mode-l

Runtime Trace Mode is a powerful hidden gem in SP Flash Tool — invaluable for low-level firmware debugging, but unnecessary for standard flashing operations. It displays detailed logs of the handshaking process

| 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. | Mismatches cause errors