Oppo A3 CPH1837 DA File – Download MTK Secure Boot Auth File

On this page, we will guide you on how to download and install the Oppo A3 CPH1837 DA file. DA file also known as the Download Agent file is a file that helps in fixing the device secure boot error. If you are using the Oppo A3 and facing any issues such as FRP lock, corrupted memory, secure boot error, authentication, or buffer error.

To flash the Secure Boot DA file on your Oppo A3, you need flash tools like SP Flash Tool, NCK Box, Miracle Box, or CM2 box. Follow our step by step guide to install the Download Agent (DA) files for your Oppo A3.

Advantages of Download Agent Loader Files

• Bypass Factory Reset Protection (FRP Lock) on the Oppo A3
• System Image backup of the Oppo A3
• Read security codes of an MTK device
• Can flash new firmware on a Oppo A3
• Clone a Recovery Image or boot files

Pre-requirements:

• This DA file is supported for the Oppo A3 device only.
• You’ve to download the DA file for your Oppo A3 device from the link above.
• A PC/Laptop and a USB cable are required.

Steps to Install Oppo A3 CPH1837 DA File

Method 01: Use NCK Box

• Download NCK Pro Box | NCK Pro Box Drivers – Install both on your PC
• Launch the NCK box on your PC > Click on FRP-PATTERN-PRIVACY-RESET.
• Click to select Custom Loader.
• Then head over to the DA file and select the downloaded DA file.
• Click on Flash Mode.
• Next, open NCK Loader > Click on Settings.
• Head over to the DA file and select the downloaded DA file.
• Go back to the Service tab > Click on Reset.0
• Y0ur Oppo A3 will now reboot with reset FRP lock system

For a complete step by step guide on how to install DA file using NCK Pro Box

Method 02: Use SP Flash Tool

• Launch the SP Flash Tool on your PC.
• Click on the Download tab.
• Click on the Choose option and select the downloaded DA file.
• The DA file will load automatically and install it.

For a complete step by step guide on how to install the DA file using the SP Flash tool