| Error | Likely Fix | |-------|-------------| | S_BROM_CMD_STARTCMD_FAIL | VCOM driver not installed or wrong USB port. Try another port/PC. | | S_BROM_DOWNLOAD_DA_FAIL | Wrong scatter file or firmware for the chipset. | | S_SECURITY_SECURE_USB_DL_IMAGE_SIGN_HEADER_NOT_FOUND | Need a custom DA (Download Agent) or signed firmware. | | Status 0xC0060003 / PMT changed | Use Format All + Download (warning: wipes IMEI if not backed up). | | Preloader error | Phone not fully off. Remove battery if possible, reconnect. | | No connection at all | Try different USB port, cable, or reboot PC/phone. |
Version 5.2152 supports custom Download Agents. The default DA (MTK_AllInOne_DA.bin) works for 95% of devices. However, advanced users can load vendor-specific DAs to bypass authentication or handle damaged NAND blocks. sp flash tool v5.2152
It’s a fair question: with v6.x and v7.x available, why download an executable from 2015-2016? Three reasons: | Error | Likely Fix | |-------|-------------| |