How To Flash Pac File SPD Using ResearchDownload Tool

These are the instructions to flash.Pac Stock Rom on any Android Smartphone using research download tool

Remember: Your Android device should have at least 40-50 percent of battery to perform the flashing process.

Flash .Pac Stock Rom on Android Smartphone

How To Flash Pac File SPD Using ResearchDownload Tool

  • Step 1: Download ~ Download and Install Spreadtrum USB Driver on your Computer. If in case Spreadtrum Driver is already installed on your computer then SKIP this Step.
  • Step 2: Download Stock Rom (.pac) for your Android Device.
  • Step 3: Download and extract RESERCHDOWNLOAD   tool on your computer. After extracting, you will be able to see the following files:

  • Step 4: Now, open reseachdownload.exe.
  • Step 5: Once the researchdownload Tool is launched,
  • make sure your device is switched off.
  • Step 6: click on the Load Packed Button and add the .pac file (stock rom which comes as .pac).


  • NOTE TO REMOVE USER LOCK CODE LIKE pattern lock phone lock Gmail lock etc.
  • uncheck all, and flash only user data fdl1 & 2 already selected


  • Step 7: Once you have successfully added the.Pac file


  • clicks on the Start Downloading button to begin the flashing.

  • Step 8: During the flashing process your device will restart automatically. Once flashing is completed, you will be able to see the Green Passed Message in the researchdownload tool

  • Step 9: Now you have successfully flashed your Android Device using researchdownload  Tool.

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