In the realm of MediaTek devices, DA files—also known as Download Agents or Secure Boot Agents—are vital components used during flashing or unlocking processes. These files enable communication with devices that have secured boot mechanisms, which otherwise prevent direct firmware modifications.
Common unlocking tools often rely on selecting the phone model to initiate tasks; however, not all models are covered, making flashing difficult. Here, the appropriate DA file tailored to the device model becomes indispensable, helping bypass security and resolve common flashing errors. For example, unlocking the Huawei DRA-LX2 requires its specific DA file combined with utilities like SP Flash Tool or other GSM tools.
Step-by-Step Guide to Using DA Auth Files with Popular Tools
SP Flash Tool
- Ensure you have FlashTools version V5.1812 for best results.
- Launch SP Flash Tool on your PC.
- Navigate to the “Download Agent” section at the top and click the “Choose” button.
- Select the DA file matching your device model.
Avengers AndroidMTK Tool
- Open the Avengers AndroidMTK application.
- Find the “Download Agent” option on the left panel.
- Click “Select Custom Loader” and load the proper DA file.
Ultimate Multi Tool (UMT) MTK
- Run the Ultimate Multi Tool MTK software.
- Head to the relevant operation section.
- Look for the “DA” box labeled “Select Download Agent.”
- Choose “Custom DA” and load your DA file.
CM2 Infinity (CM2MT2)
- Start the CM2MT2 tool.
- Click on “Platform Main.”
- Enable “Custom settings DA Auth Cert.”
- Press the “DA” button and import the DA file.