Tecno Spark 3 KB7J DA File | Download Secure Boot DA Auth File

The Tecno Spark 3 smartphone released in April 2019 with Android 9.0 Pie out of the box. Now, if you’re using the Tecno Spark 3 device and facing issues like authentication or buffer error, you will need to fix it via the SP Flash Tool or Miracle Box or CM2 box. But if you don’t fix it, you will encounter a secure boot error. In order to flash those devices, you will require a Secure Boot DA file. Here you can download and install Tecno Spark 3 MTK Secure Boot DA file.

If your MediaTek powered Android device got corrupted or bricked, you will require a Download Agent file to access its onboard storage and fix it. Here in this guide, we will share with you the steps to install the Download Agent (DA) files for your device. The boot file or firmware file is also known as the DA file. The DA file is necessary to flash any file into a sucre boot enabled MTK device.

Download Tecno Spark 3 kb7j Secure Boot DA auth file

Tecno Spark 3 Device Overview

Tecno Spark 3 was announced in April 2019 which sports a 6.2-inch IPS LCD display with a screen resolution of 1500 x 720 pixels with 268 PPI pixel density.

Tecno Spark 3 is powered by a MediaTek Helio A22 (MT6761) chipset coupled with 2GB of RAM and 16GB of internal storage. It also supports an external memory card. The device came out of the box with Android 9.0 Pie under HiOS 4.6 and backed by a 3500 mAh battery (Non-removable).

As far as the camera concerned, the device has a Dual-camera setup with 13MP + 2MP primary sensors and a selfie camera with an 8MP lens. Other connectivity option includes 4G-VoLTE, GPS, Glonass, Bluetooth, Mobile Hotspot, accelerometer, ambient light sensor, gyroscope, proximity sensor, and compass/ magnetometer. etc. The Tecno Spark 3 comes with a rear fingerprint sensor feature.

Advantages of Download Agent Loader Files

  • Bypass Factory Reset Protection (FRP Lock) on the Tecno Spark 3
  • System Image backup of the Tecno Spark 3
  • Read security codes of an MTK device
  • Can flash new firmware on a Tecno Spark 3
  • Clone a Recovery Image or boot files


GetDroidTips won’t be responsible for any kind of damage or error that will occur on your device by following this guide or flashing any file. Proceed at your own risk.

Download Link:


  • This DA file is supported for the Tecno Spark 3 device only.
  • You’ve to download the DA file for your Tecno Spark 3 device from the link above.
  • A PC/Laptop and a USB cable are required.

Steps to Install Tecno Spark 3 MTK Secure Boot DA auth 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 Tecno Spark 3 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 SP Flash tool

Method 03: Use Miracle Box

For a complete step by step guide on how to install the DA file using Miracle Box

That’s it, guys. We hope you’ve successfully installed the DA file on your Tecno Spark 3 kb7j device. For any queries, feel free to ask in the comments below.

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