DA files, or Download Agents, are essential for flashing and unlocking MediaTek-based smartphones like the Vivo Y90. These files help bypass secure boot restrictions on devices that don’t allow direct flashing or unlocking without authentication.
Many popular unlocking tools try to detect your phone model automatically, but sometimes your specific Vivo Y90 model may not be supported or flashing attempts may fail due to security blocks. That’s where the DA auth files come into play — they enable tools to communicate properly with your Vivo Y90 and perform the required operations.
If you are facing errors during flashing or unlocking your Vivo Y90, using the correct DA files will often solve the problem and ensure a smooth process.
How to Use Vivo Y90 DA Auth Files on Popular Flashing Tools
Using DA File on SP Flash Tool
- Use FlashTool version V5.1812 or newer for best compatibility.
- Launch SP Flash Tool.
- Click the “Choose” button next to the Download Agent section.
- Load the Vivo Y90 DA file provided.
Using DA File on Avengers Android MTK
- Open Avengers Android MTK tool.
- Navigate to the Main tab.
- Locate the Download Agent section on the left panel.
- Select “Custom Loader” and load the Vivo Y90 DA file.
Using DA File on Ultimate Multi Tool MTK
- Open the Ultimate Multi Tool MTK software.
- Choose the desired function or section.
- Find the “Select Download Agent” option at the top.
- Click “Custom DA” and browse to load the Vivo Y90 DA file.
Using DA File on CM2 Infinity (CM2MT2)
- Start CM2 Infinity tool.
- Go to the Platform Main section.
- Enable “Custom Settings DA Auth Cert”.
- Press the DA button and select the Vivo Y90 DA auth file.