Many smartphone brands (like Infinix, Tecno, Itel, and Huawei) modify the core MT6580 architecture to include secure boot protection. A standard DA file will result in errors like BROM ERROR: S_AUTH_HANDLE_IS_NOT_READY or Authentication file mismatch .
In MediaTek (MTK) device servicing, the MT6580 Download Agent (DA) file mt6580 da file