How To Backup Spreadtrum ROM to SDcard or SDcard1

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Backing up your phone’s firmware is very important and necessary if you’re the type that loves trying new stuffs on your device. Like rooting, flashing kernels, custom ROMs, etc.

Also, if you want to build a custom ROM for your device, a backup of your original firmware is required if you do not have a downloaded firmware package.

If you want to backup a device from another Chipset, click here.

Requirements:

How to Backup Spreadtrum ROM to Internal or External SDcard

Now, navigate to C:\user\.android\adb_usb.ini  and edit via Notepad++ or any text editor. Add this PCI ID to the file, to inform adb that you’re working with a Spreadtrum device.

0x1782

Save and exit.

Backing up Spreadtrum Firmware

  • Once you have fulfilled the requirements above, launch Command Prompt and key in the following commands hitting Enter button after each command line.
Note: Be sure to launch CMD from where your downloaded backuptools.tar archive is located. If you downloaded the backup package for external sdcard, don’t forget to rename to backuptools.tar.
Commands:

adb push backuptools.tar /data/local/tmp

adb shell su -c “tar -xvpf /data/local/tmp/backuptools.tar”

adb shell su -c “./mkbackup.sh”

Wait for sometime then check the backup folder in your sdcard and you will find the backup files of your phone’s firmware.

If you get an error message like: sh: applet not found, uninstall the busybox you have installed and install this- Busybox.

To learn how to flash or install stock firmware on your Spreadtrum phone, click here.

If you have any questions or complaints, please post in comments section. Don’t forget to share if you find this useful.

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29 Comments

  1. my phone Infocus bingo 21 is stood at bootloop, it can enter to fastboot mode but in command prompt 'waiting for device' is always appear… please help me

  2. First, reinstall the drivers…then navigate to C:user.androidadb_usb.ini and edit via Notepad++ or any text editor. Add this PCI ID to the file, to inform adb that you're working with a Spreadtrum device.

    0x1782

    Save and exit.

    This should work without issues.

    Let me know of there's something else I can help you with.

  3. Enable view of hidden files and folders in Windows Explorer options.

    If you still can't find it after that, create the folder (.android) and file. Then add the PCI ID inside the file and save.

  4. “No space left on device”

    the commands are working fine for me but its saving the image files to my internal memory whichs is small (256mb) and it showing error “no space left on device” any option to save it in external storage?

    • We have just uploaded another backup package that will backup the ROM to your device’s external storage. Check within the post and download the relevant package then retry the backup process.

      Do let us know how this works out for you!

  5. I am able to download the file now…will it save the backup to the sd card if I have music and videos in my sd card?

    • If your device shuts down before the process is complete, the backup will not be successful.

      Make sure you have enough space on your sdcard, if possible use a blank SDcard.

      • I have enough blank space in my sd-card. but after running the command the phone shutdown and the command in the cmd ends.

        after restarting the phone no backup files are there in the sd-card.

        • Hi Biswas, you cannot restore the backup firmware via sdcard. The backup doesn’t have a META-INF directory and relevant files that indicates the specific partition where each IMG file should be flashed or restored to.

          • what will be the command to do this?
            do I have to create .zip file to flash the backup and does it require rooting the device too?

          • fastboot flash filename.IMG

            Example: fastboot flash boot boot.img

            But fastboot packages and driver need to already be installed on your Computer to execute or run such commands.

          • I have a rda8810 device karbonn a108 plus I have backup of the device using above method :
            cmdline.info
            config.info
            cpu.info
            firmware.info
            mtd0.dummy.img
            mtd1.system.yaffs2.img
            mtd2.customer.img
            mtd3.userdata.yaffs2.img
            nandroid.md5
            ram.info
            rom.info

            now I have these files after backup now how I can restore them.

          • We did not forget, we just have a lot of requests to fulfill. The guide for restoring the backup files, or packing to .PAC will be made available as soon as possible.

  6. Is this gonna make a back up of all the current state of the stock rom in my phone? for e.g. will it create some sort of a flashable zip or any file type?

    • Please ensure that your device has root access and is based on spreadtrum cpu. Clean up all files and retry the process.

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