How To Flash Firmware SPD Use Research Downloader

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There are two available tools for flashing .pac file to Android device and mostly a Spreadtrum chipset, first is Research Download Tool and the other one is Upgrade Download Tool. These tools allow you to flash .pac firmware but it is important to know how to use it.  In this guide, I am going to show you step by step how to properly use SPD  Download Tool / SPD Upgrade Tool.

Tools To Perform Flash:
Desktop with Windows operating system (preferably Windows 7)
.pac file to flash (firmware of your device)
How to Use Research Download Tool / Upgrade Download Tool
  1. Extract all the files and place it in one folder somewhere on your desktop.
  2. First, you must install the Spreadtrum drivers. Right-click SprdNpiDriverInstall.exe and choose to run as Administrator. If you are using Windows 8/10, you must disable the driver signature to install the unsigned driver.
  3. Open Research Download folder and run ResearchDownload.exe.
  4. Now you are going to load the packet file or .pac file. Click the first gear icon and locate the .pac file.
    How to Using Research Downloader.exe
    How to Flash via Research Downloader.exe
  5. After you’ve chosen the Pac. file. You should see something similar to the image below.
    How to Flash Using Research Downloader
  6. If you want to change flash settings. Click the second gear icon. But I recommend leaving the settings to default.
    How to Flash Using Research Downloader.exe
  7. Now click the arrow to begin flashing. See the image below.
    How to Flash Using Research Downloader.exe
  8. When you’re done clicking the arrow, turn off your Android phone and wait for at least 15 seconds. Grab the USB cable, hold volume down and plug your device into the computer. The process should start automatically. You can now release the volume button.
  9. Once flashing is complete, you'll see Passed 
    How to Flash Using Research Downloader.exe
  10. Click on the Stop downloading icon then disconnect the phone from PC and boot
If you encountered any problem, feel free to ask just leave a comment and I will answer it as soon as I can. If you find this blog helpful please share it with your friends and don’t forget to follow us on Google+ to get the latest updates.

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