Official SPD/Unisoc Flash Tool

How to use SPD Research Tool

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On this page, we are going to use the SPD Research Tool to Flash or install the Stock Firmware (ROM Flash File) on devices powered by Spreadtrum/Unisoc Chipset.

Caution: Flashing or installing stock Firmware using the SPD Research Tool may wipe out the personal data from the device. Therefore, we recommend you take a backup of your data before using the SPD Research Tool.

How to Install PAC Firmware (ROM) using the SPD Research Tool

  1. Download and install the SPD Driver on your Computer (if in case SPD Drivers are already installed on the computer, then SKIP this step).
  2. USB Logo
  3. Download Stock Firmware (ROM Flash File) of your Spreadtrum/Unisoc Device (if in case you have already downloaded the Stock Firmware then SKIP this step of find the .pac based Stock Firmware on FirmwareFile or NaijaROM or through Google).
  4. Download Logo
  5. Extract the Research Tool on your computer (assuming you have already downloaded the Research Tool; if not then Download SPD Research Tool). Once Research Tool is extracted on the computer, you will be able to see the following files:
  6. SPD Research Tool Files
  7. Now, Open ResearchDownload.exe to launch the Tool:
  8. Research Tool Start
  9. Once Research Tool is Launched, you will be able to see the following window:
  10. Research Tool
  11. Click on the Load Packet Button:
  12. SPD Research Tool Load Packet
  13. Locate the .pac based Stock Firmware (ROM Flash File) on your Computer (assuming you have already downloaded the Stock Firmware in Step#2) and Click on Open to Load the Firmware:
  14. SPD Research Tool Select Pac
  15. Connect your Spreadtrum/Unisoc Device to the Computer using the USB Cable (make sure the device is Power Off):
  16. connect mobile computer
  17. Click on Start Downloading button to begin the Flashing or installation process:
  18. SPD Research Tool Start Flash
  19. Now, Research Tool may take few minutes to complete the Flashing or installation process:
  20. SPD Research Tool Flashing
  21. Once the Flashing or installation process is completed, you will be able to see the Passed Message on the Research Tool:
  22. SPD Research Tool Success
  23. Now, Close Research Tool and Disconnect your Spreadtrum/Unisoc device from the Computer.
  24. disconnect mobile computer

    Congratulation! You just learned to flash or install .pac firmware on Spreadtrum/Unisoc device.

Readme Once:

[*] Download Upgrade Tool: If you are looking for the latest version of SPD Upgrade Tool, then head over to the Upgrade Tool Section page.

[*] Download Latest version of SPD Research Tool: If you are looking for the latest version of SPD Research Tool, then head over to the Research Tool Section page.

[*] Download Latest version of SPD Factory Tool: If you are looking for the latest version of SPD Factory Tool, then head over to the Factory Tool Section page.

[*] Download SPD/Unisoc Driver: If you are looking for SPD/Unisoc USB Driver compatible with the SPD Flash Tool, then head over to Download SPD USB Driver page.

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