Root Karbonn A21

Karbonn A21 is a dual core beast from Karbonn which comes with Snapdragon dual core clocked at 1.2 Ghz. It also sports 512 MBs of RAM.

It is priced at Rs. 10790 on Flipkart with a cashback of Rs 500. So these were some technical and price details of this device but the real motive of the users is to help the owners to root Karbonn A21. 

You will succeed in rooting Karbonn A21 if you follow this step properly.


Download the drivers  and root tools for Karbonn A21 from the below given link.

[button link=”″ style=”download”]A21 Drivers and Root Tool[/button]

Rooting Process

  • After you have downloaded the archive from the link given above extract them to a location you can access the files quickly. The files should like these.

Karbonn A21 root

  • Now on your phone enable USB debugging by opening Settings > Developer Options > USB Debugging. Check it and go back.
  • Now connect your phone to your PC by using the USB cable provided.
  • Now install the drivers for Karbonn A21 from the Driver folder from the extracted archive.
  • Temporarily turn off your anti virus if any or it can detect UnlockRoot as a potential threat. It will just be a false warning, don’t worry, UnlockRoot is safe.
  • Install UnlockRoot. It will take some time.
  • After it is installed start UnlockRoot .
  • It will detect that the drivers for Karbonn A21 has been installed already.
  • Click the big green Root button and ignore any dialogues that pop up.


  • Now that the process has completed, your phone will reboot.
  • Disconnect your phone. It is now successfully rooted.

Congratulations!! You have been successful to root Karbonn A21. Now enjoy your rooted Karbonn A21.



Ujjwal Kumar

Ujjwal is just a simple guy who likes to be happy and likes to write various different kind of stuff. You can find him writing posts related to Android most of the time but he also likes writing poems, short stories and other stuff. Mail him at ujjwal [at] droidextra [dot] org.

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  • Narender

    Sorry for Off-topic Comment Dear but I would like to know which Widget you are using in your sidebar top for social buttons . I wanna use it on my website Kindly mail it to me ”

  • rohit

    Dear its not working for me.
    Titanium backup says no root previleges!

    • Try the steps properly. It is working.

      • Titty Mathew

        Ujjwal, Where can we find the drivers for A21. my PC (win7) is not getting the drivers updated while this phone is connected

        • It’s already in the download package.

          • khalid cool

            but it is saying windows cannot detct the drivers

    • pannet1

      Its saying device is already rooted. So I did a unroot and then again I did a root. Then its working. Please see the status below the Root button, while the process is going. Skip all the stupid install recommends (Babylon seach, filefrog,etc).

      • rohit

        i tried that..still i got no success 🙁

  • pannet1

    Rooted Karbonn A21. Now now how to back up stock kernel

  • You can try SuperOneClick.

    • rohit

      ok i’ll try even that…but superoneclick was used for gingerbread

  • Prateek Maloo

    does anyone have the Stock ROM for Karbonn A21?

  • sandie

    Thanks dude.. really helpful for me.. it works …
    can you please write on how to install clockworkmod on Karbonn A21 …..

    • Sadly, there is no news on ClockworkMod for Karbonn A21 yet. You can subscribe and like our Facebook page so that you get an update as soon as it is posted.

  • Veer

    The forum is abandoned !!! abandoned!!! abandoned!!!

  • fake

    • Go do yourself a favor and learn to do stuff correctly before calling someone’s work fake. I think you are fake and that is why you haven’t even provided your email ID.

  • Vivek Sharma

    please specify how to install drivers in 4th step.

  • i am not able to do it it is showing that UNABLE TO GET SHELL ROOT what to do …………plz help me

  • Rithesh

    Hi Ujjwal…. Iam using the Karbonn A21 from past few days im not abl to download any thing through my cell . iam getting an error 403 and some times 923.. can u please help me out here.. let me know wht should or can i do…. Thanks,,,

  • not able to install drivers..!!!

  • Yamama

    i am enable USB debugging but unlock root says enable USB debugging please helllpppp meeeeeeeeee. send me ans on this email–

  • hi ujjal i am having karbonn a18 can it be upgraded to jellybean

    • Hello
      My name is UJJWAL and not Ujjal 🙂
      Anyways, no right now you cannot upgrade to Jellybean on A18.

  • nitin

    hey buddy…pls tell how to unroot…


    The download comes with a pc performer malware. What should I do?

    • See the end of the post and use the alternate method.

  • gopal

    I have rooted my Karbonn S5 by Framaroot method. Then I ran into trouble with regard to notification. I went to customer care and flashed the device. From that movement I lost the root in my device. How can I root my device. Please help me

    • Use the same method you used to root it this time too.

  • Mohit Sharma

    How to Root Karbon A10