Replace your USB cable or switch to a USB 2.0 port on your motherboard. USB 3.0/3.1 ports frequently conflict with old MediaTek preloader drivers.
| Error / Message | Likely Cause | Solution | | :--- | :--- | :--- | | or ERROR : STATUS_ERR(-1073676287) | Connection failure. Usually caused by driver issues or a missing/corrupt Preloader on the device. | Reinstall MTK VCOM drivers. Try a different USB port (USB 2.0 preferred) and a high-quality data cable. | | STATUS_SEC_AUTH_FILE_NEEDED | The device has "Secure Boot" enabled, and an authentication file is required. | Obtain and load the correct auth_sv5.auth file for your device model and chipset. | | S_FTHND_FILE_IS_NOT_LOADED_YET (0xC0070004) | A required partition image (like preloader ) was not checked in the list. | Go back to the Download tab and ensure all necessary partitions, especially PRELOADER , are selected for flashing. | | SP FLASH TOOL not detecting phone | Driver issue, wrong USB port, or wrong connection procedure. | Step 1: Check Device Manager when you connect the powered-off phone. Do you see a COM port appear briefly? Step 2: Try connecting the phone with and without holding volume buttons. Step 3: Reinstall drivers and restart PC. | | DA (Download Agent) error / Secure Boot issue | The default DA is blocked by the phone's security. | You need a custom DA file. Search for MTK_AllInOne_DA.bin that is compiled for bypassing security on your device's specific build (e.g., Infinix, Oppo, Vivo). | | Phone becomes dead/black after flash | Wrong firmware or you used "Format All + Download" without an NVRAM backup. | If flashing fails, you may have corrupted the bootloader. The only solution is often an ISP (In-System Programming) direct connection to the eMMC chip using a programmer to force-flash the correct bootloader. This requires advanced tools and expertise. | sp flash tool mt6765
: Always backup data; flashing usually wipes the device . Replace your USB cable or switch to a USB 2
Hold the keys again and connect the device to the computer. Usually caused by driver issues or a missing/corrupt
Launch flash_tool.exe from the extracted SP Flash Tool folder.
To use the SP Flash Tool with your MT6765 device:
Understanding the MT6765 Chipset and SP Flash Tool Architecture