SPD Research Tool R25.20.3901 (all versions) Download Free

SPD Research Flash Tool, also known as SPD PAC Flash Tool, is a software tool that is used to flash firmware or stock ROMs onto Spreadtrum (SPD) devices. It is a useful tool for repairing or updating firmware on SPD devices. Here we have shared all versions of the SPD research Flash Tool which you can download from the below links.

SPD Research Tool R25.20.3901 (all versions) Download Free


One of the key features of the SPD Research Tool is its ability to work with PAC files, which are specific to Spreadtrum devices. PAC files are firmware files that contain the firmware, bootloader, and other necessary files needed to run the device. The tool can also be used to create backup copies of your device’s firmware, which can be useful in case of a device failure or malfunction.

Download SPD Research Tool For Windows

SPD Research Tool is a powerful software tool that can be used to flash firmware or stock ROMs onto SPD devices. It supports all versions of PAC Flash Tool and is user-friendly, making it accessible to both beginners and advanced users. If you own an SPD device and need to repair or update its firmware, the SPD Research Tool is an excellent choice.

To flash using SPD Research Flash Tool, follow these steps:

  1. Download and extract the tool.
  2. Download and extract the stock ROM on your computer.
  3. Install the SPD USB Driver
  4. Open the tool and click on the firmware loading button.
  5. load stock ROM in PAC format and click the Start button.
  6. Hold the Volume UP and Volume DOWN keys on your device and connect it to the computer.

The tool is user-friendly and has a simple interface that makes it easy to use even for beginners.