A "DA file" in the context of smartphones and flashing firmware usually refers to a "Download Agent" file. The DA file is a critical component used in the process of flashing or updating the firmware of a device. It acts as a bridge between the flashing tool (like SP Flash Tool) and the device being flashed.
Never download raw DA_6765.bin from random file hosts without checking SHA256 hashes. Mt6765 Da File
The DA file reports the status of the hardware back to the PC tool: A "DA file" in the context of smartphones
MediaTek has a default DA file included with SP Flash Tool (often named MTK_AllInOne_DA.bin). However, for modern chipsets like the MT6765, the generic DA is almost useless. Here is why: In short, trying to use a generic MTK
In short, trying to use a generic MTK DA on an MT6765 device will result in an S_BROM_CMD_STARTCMD_FAIL (0x13BE) or STATUS_ERR (0xC0060005).