| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | USB driver conflict. | Reinstall MTK drivers or change USB port (use USB 2.0). | | S_BROM_DOWNLOAD_DA_FAIL (0x7D4) | Preloader mismatch. | Use "Format All + Download" (risk of IMEI loss). | | STATUS_DA_HASH_MISMATCH | Wrong scatter file. | Ensure the scatter file matches the CPH1803 exactly. | | PMT changed for the ROM | Partition table mismatch. | Go to Options > General > Tick "Allow Download Partition Table." | | DRAM Setup Failed | Broken USB cable or wrong firmware chipset. | Replace USB cable. Ensure firmware is for MT6570. |
: Flashing will erase all data. Back up important files to an SD card or computer. Drivers : Install the Qualcomm USB Drivers oppo a3s cph1803 flash file