If SP Flash Tool gives a STATUS_BROM_CMD_DA_FAIL error, your connection failed the authentication check. Ensure your MTK Auth Bypass tool is active or that your DA file matches your exact build version.
The is a critical secure-boot authenticator required to bypass security protocols when flashing, bypassing FRP (Factory Reset Protection), or repairing the firmware on a Tecno Pop 5 Pro (BD4j) . Equipped with a MediaTek Helio A22 (MT6761) chipset, this entry-level smartphone implements Secure Boot DA architecture. This means generic flashing utilities cannot interface with its internal storage without a model-specific, authenticated DA file. tecno bd4j da file
Once the red progress bar fills up, release the volume button. The tool will read the custom DA file, bypass the secure configuration, and proceed with a yellow progress bar to complete the flash. Troubleshooting Common Errors If SP Flash Tool gives a STATUS_BROM_CMD_DA_FAIL error,