Previously, I published an article on how to flash stock firmware on any Spreadtrum device, but some people find it difficult to flash the .PAC firmware package contained in the downloaded zip archive. This could be the result of too many reasons: wrong USB driver installation, outdated firmware flashing software, and a handful of other reasons.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 or program fails to deliver.
Requirements
- 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
Done!
How To Flash via Fastboot
- Launch fastboot via cmd (remember to download and install fastboot binaries)
- 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!
If you have any questions, suggestions or complaints please ask in comments section.
Share and like this article if it has been helpful to you.
Image credits: Hovatek
22 Comments
HOW TO Copy the partition(s) to flash to your fastboot package directory???
In the folder where you have extracted the partitions to, select the exact one(s) you wish to flash via fastboot.
Right click, then select copy from the options and paste them where your fastboot/adb files are. If you installed adb/fastboot system wide, hold right-click + shift button then select Open Command Window here. Now you can start flashing.
Click here to learn how to install adb/fastboot system wide.
how bin file extract into pac file
How to extract pac file on basic non-tactile cell phones rather no android
Some of us do not have PC. Please explain how to do this on phone for magisk
i need rom for SQ M600 TAB
spreadtrum sc7731g
boerd id=A7317D_MAIN_V1.2_20160107
sent \”failed: Uart send error\” (((. What is the problem? Drivers installed successfully
ouch. Sorry, it is not for this theme
Bro my device is
XOLO ERA 4G
SPREADTRUM SC9830A
and i backed up my device now i need a tool to convert the backup.zip into pac file,so can you please tell me how to do that and i also have a pac firmware for my device but i have modified my system and need to replace the system.IMG but dont have the correct tool so my humble request to you is to make a detailed tutorial please!!!
Hi Shantanu!
We have taken note of your request, and we will try to make a detailed guide/tutorial on how to compile your Spreadtrum backup into a PAC firmware pretty soon.
Is the tutorial done? Can I change boot logo using this method?
Yes. You can replace the existing boot logo with a compatible one, then repack.
guys give me all fastboot commands to flash stock rom on my Intex aqua life 2 ty
The files you are supposed to flash when flashing over fastboot include- system.img, boot.img, and recovery.img. These are the most important.
Indicate the relevant partition in the fastboot command when flashing.
How do I repack to .pac?
Spreadtrum Driver installation failed
What Windows version is installed on your PC?
sorry, now install. device not detecting
Uninstall and reinstall the drivers, then reboot PC.
Help me with this file
J7Plus GSMH
A3L J7Pro
SC7710
SC8810/6820
Infor: SPRD3
Initialize boot16…
CPUtype: 8810/6820
Flashtype: NAND
FlashID: 002C00BC
Flash Model: Micron MT29C4G48MAZAPAKD
FlashSize: 0x21000000(528.0M)
If you are having problems with this soc related to drivers while on windows , I reccommend you to use linux , one distro that is specially developed for this purpose is FWUL , you can boot into live CD and use adb and fastboot…
how do i open the system.img ?