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 This could be as result of too many reasons: wrong USB driver installation, outdated firmware flashing software, and a handful of other reasons.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.
- Research Download Tool – Download
- Fastboot / ADB setup – click here to here to learn how to setup/install
- Spreadtrum Driver – Download
- A Spreadtrum device
How To Unpack .PAC
Step One: Run Research Download Tool
Step Two: Once it is fully launched, click on the Load Packet icon.
Step Three: In the window that pops up, select the pac file you wish to unpack then click Open
Step Four: Wait for the pac file to load completely, the click the Settings icon
Step Five: Click to highlight any item on the list
Step Six: Now double-click on the highlighted item, right-click and copy the path
Step Seven: Paste the copied path to any text editor, Notepad probably
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)
Step Nine: Navigate to the path in Step Seven above and you’ll find all the files there
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.
Image credits: Hovatek
If you have any questions, suggestions or complaints please ask in comments section.
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