How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package

Previously, I published an article on how to flash stock firmware on any spreadtrum device, but some people find it difficult flashing the .PAC firmware package contained in the downloaded zip archive. This could be as result of too many reasons: wrong USB driver installation, outdated firmware flashing software, and a handful of other reasons.

In this article, you’ll learn how to extract the important IMG files for flashing via fastboot, just in case flashing with a firmware installation software/program fails to deliver.

 

Requirements

 

 

How To Unpack .PAC

Step One: Run Research Download Tool

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 1

Step Two: Once it is fully launched, click on the Load Packet icon.

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 2

Step Three: In the window that pops up, select the pac file you wish to unpack then click Open

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 3

Step Four: Wait for the pac file to load completely, the click the Settings icon

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 4

Step Five: Click to highlight any item on the list

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 5

Step Six: Now double-click on the highlighted item, right-click and copy the path

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 6

Step Seven: Paste the copied path to any text editor, Notepad probably

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 7

Step Eight: Open any folder and unhide all hidden items from the Options menu (the steps might vary slightly from the version of your Windows installation)

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 8

Step Nine: Navigate to the path in Step Seven above and you’ll find all the files there

How To Extract / Unpack IMGs From .PAC Spreadtrum Firmware Package 9

Done!

 

How To Flash via Fastboot

  • Launch fastboot via cmd (remember to download and install fastboot)
  • Copy the partition(s) to flash to your fastboot package directory
  • Reboot device in fastboot mode. Can be done via adb: connect to computer and type

adb reboot bootloader

  •  Once in fastboot mode, use the command below to flash the copied images

fastboot flash boot boot.img

If you’re flashing recovery image, replace boot and boot.img with recovery and recovery.img.
Done!

 

Image credits: Hovatek

If you have any questions, suggestions or complaints please ask in comments section.

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22 Comments

  1. trnu April 11, 2021
  2. Max April 8, 2019
  3. Sir Real June 17, 2018
  4. Drug June 11, 2018
    • Collins Edim June 12, 2018
    • drug June 12, 2018
      • Collins Edim June 12, 2018
  5. Alpha December 12, 2017
  6. sai March 10, 2017
    • Leakite March 17, 2017
  7. Shantanu January 15, 2017
    • Leakite January 15, 2017
      • Alpha December 12, 2017
        • Collins Edim December 12, 2017

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