How to Flash the CWM Recovery 5.0.2.8 in Karbonn A21

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Are you a Karbonn A21smartphone user? Do you want to install CWM Recovery 5.0.2.8 in your device? Then here is the easy tutorial for you.

Apply this procedure in your smartphone. It is fully working. But keep in mind that to flash the CWM Recovery you should have Rooted Karbonn A21 smartphone.

karbonn-a21

 

DISCLAIMER : Best Android Blog would not be held responsible/liable for any damages that takes place to your device by following this procedure. So, do everything at your own risk.

Pre requisites:

  • Before start to proceed we highly recommend you to take a full backup of your datas with the help of CWM-backup application. Because this is a risky procedure and there is a chance to wipe your datas. So, we strongly advise you to take backup.
  • Further, we also suggests you to charge your device battery fully to avoid the risk of your device getting switched off during the middle of the process. If you could not do so due to any unavoidable reasons then make sure your device have the battery level of atleast 60-70%.
  • Then disable all the antivirus suites both in your mobile and computer. Because this may interrupt in the installation process. If it does not interact then you no need to uninstall.
  • Finally, you should enable the USB Debugging in your device by following the path Settings>Applications>USB Debugging.

Steps to flash the CWM Recovery:

1. First download the zip from here to your computer.

2. Then extract the downloaded zip in a folder.

3. After that copy the recovery.img to the root of the SD card (Root means not in any folder).

4. Then Open the terminal emulator in your phone. You can try this.

5. Type the following commands:

su
dd if=/dev/block/mmcblk0p16 of=/sdcard/mmcblk0p16.backup bs=4096
dd if=/sdcard/recovery.img of=/dev/block/mmcblk0p16 bs=4096

That’s it you’ve now successfully flashed the recovery in your device. Use the combination to enter into the CWM recovery.

About Sarvesh Darak

Sarvesh Darak is a blogger, an online marketer, a social media specialist and an Android Lover. At Best Android Blog, he writes Android news & tutorials for Android Rooting. He is the tech head and ensures that the blog keeps running at good pace. He also looks after all the SEO and promotion work. He’s from Surat, India and keep contributing regularly at the blog.

Comments

  1. Pachiappan says:

    Hi, I flashed CWM successfully. But I can’t flash any custom ROM’s stored in my 32GB memory card, since it is not getting opened in CWM. And also, there is no ‘backward’ option to go back to previous screen or home screen inside the CWM. Is there any other better working CWM available for Karbon A21 or how do we roll back to the system default version from the CWM. Appreciate for your help.

    • Sathishkumar says:

      hi are you sure you have rooted your device before flashing CWM recovery? Without rooting you could not flash any custom ROM firmwares. So, first root your device and try again.

      • pachiappan says:

        Hi Satishkumar, Thank you for your post. Yes, I have rooted my device successfully. And I installed CWM recovery also. But I’m facing issues while using it.It is not so user friendly and have difficulties in flashing custom ROMs.

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