If you have tried Solutions 1–7 and the error persists, run this diagnostic:
If the eMMC’s EXT_CSD register is corrupted, only Linux can restore it. sp flash tool status mmc error
stands for MultiMediaCard . In the context of your phone, it does not refer to your external SD card. Instead, it refers to the embedded MultiMediaCard (eMMC) —the internal NAND flash storage chip soldered directly onto your phone’s motherboard. This chip holds the bootloader, the Android OS, the system partition, and the user data. If you have tried Solutions 1–7 and the
If software retries with different DA and SP Flash Tool versions fail, treat the error as . In such cases, proceed with UART logging to isolate whether the eMMC is dead or just non-responsive, then plan for eMMC replacement or board-level repair. Instead, it refers to the embedded MultiMediaCard (eMMC)
[DA] Send cmd: CMD8 arg=0x000001AA [EMMC] No response (timeout) [DA] STATUS_MMC_ERROR (0xC0060005) [ERR] MMC: error initializing card
CMD8 (check voltage) gets no response → eMMC dead or completely unpowered.