To use these files, you generally need a flashing tool that supports external DA selection. The most common tools are:

Could you please clarify:

[Revised] How to use SP Flash tool to flash Mediatek firmware

If you’ve ever tried to rescue a bricked MediaTek (MTK) Android device—a cheap tablet, a rugged phone, or a Chinese smartwatch—you have likely run into two cryptic phrases: and Authentication File . That’s where the legend of MTKallinOne Dabin Link comes into play.

Flashing MediaTek (MTK) firmware via SP Flash Tool. Download Link: [Insert Your Link Here] How to use it in SP Flash Tool: Open SP Flash Tool on your PC. Go to the Download tab. Click Choose next to the "Download-Agent" field.