The term DA means Download Agent or secure boot file, a crucial part of flashing MediaTek smartphones. Phones with strong boot security prevent direct flashing or unlocking, requiring specific DA auth files for these operations. Many unlocking utilities attempt automatic device detection by reading the phone model, but sometimes the target model isn’t supported or flashing results in errors.
This is where DA files come in handy. By loading the correct DA file tailored for your device, such as the Huawei Y3 2018, you can bypass these limitations. Tools like SP Flash Tool and other GSM tools can then successfully flash or unlock the device without running into common obstacles.
Loading DA Auth Files on Popular Flashing Tools
Using SP Flash Tool
- Download and install FlashTools version V5.1812 for compatibility.
- Launch the tool and locate the "Download Agent" area on the top panel.
- Click the "Choose" button next to it, then browse and select the proper DA file.
Using Avengers AndroidMTK
- Start Avengers AndroidMTK software.
- On the left sidebar, find the "Download Agent" section.
- Click on "Select Custom Loader" and load the corresponding DA file.
Using Ultimate Multi Tool (UMT) MTK
- Open Ultimate Multi Tool MTK.
- Navigate to the section for your specific task.
- At the top, find the “Select Download Agent” box and click “Custom DA.”
- Load the appropriate DA file.
Using CM2 Infinity (CM2MT2)
- Run the CM2MT2 tool.
- Open the “Platform Main” tab.
- Enable “Custom settings DA Auth Cert.”
- Press the “DA” button and upload the required DA file.