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There are many searches for Karbonn A21, and Karbonn A21 Plus flash tool with firmware (flash file) 2018 to free download. In this article you will get the firmware, flash file, stock ROM, flashing tool, and flashing tutorial for both Karbonn A21 and Karbonn A21 Plus. The latest flashing tool for Karbonn A21 devices are v2.0.5 which you can download from below here.

Qualfast flashing tool is used to flash Karbonn mobile devices. Some users are using Broadcom multi downloader tool v2.3.0 to flashing purpose. These tools are working nicely on Karbonn dead phones.  There are many problems shared by Karbonn users in many forums and websites. Are you new to flash your Karbonn Z21 plus? Then follow the given video tutorial for Qualfast and written tutorial for broadcom below to start successful flashing of your phone. Before going to tutorials, read the current issues with Karbonn A21 plus first under here.

Karbonn A21 plus Firmware Bugs/ Porblems/ Issues

The Karbonn A21 and A21 Plus users are complaining different issues having with their mobile phone. Those issues are dead of mobile phone, automatic restarting of phone during the phone call or welcome screen logo freeze, hanging/ freeze/ slow down of Karbonn mobile, new updates of apps not working on phone, and abruptly closed after showing errors, RAM operating and phone boot having problems or not started properly, some functional apps are not working on phone properly such as touch, camera, display, and keypad etc, a big issue has been reported by Karbonn A21 Plus user that the mobile phone shows no SIM card when they put the SIM card into the phone, losing of network from phone for short or long time, and many more others.

Firmware Detail:

  • Latest firmware: Karbonn A21 Plus
  • Version: 2018
  • Volume: 316MB
  • Required: Karbonn A21 Plus mobile, Flash Tool, Drivers, USB cable, and PC
  • Supported tools: Broadcom, Qualfast, and many others
  • Firmware language: English
  • Fixing issues: IMEI repair, dead flashing, hard reset, flash stock ROM, hang of mobile phone, network lose, no SIM Card issue, automatic restart issue, screen logo freezing issue, and many more

Are you one of those users who have any of the mentioned above problems? If yes, then you need to upgrade your mobile firmware. The latest version firmware/ flash file has been given below. You can download it directly at there. You will get No referrals, no ads with downloading links. It saves your time.

How to Flash Karbonn A21 Plus?

  • Latest version Firmware, flash tool, flashing tutorial, driver setup download here
  • After completion the downloading, run the flash tool on your PC
  • Now install driver setup too
  • Connect your mobile phone with PC
  • Choose downloaded firmware
  • Press “Ok”
  • If you have confusion follow the given tutorials below

For new users, we have shared a video tutorial here. It will help you to a successful flash. To watch video tutorial follow flashing tutorial here, and if you want a written tutorial for boadcom multi download then checkout here.

Latest version USB driver setup you will need to install flash tool to upgrade your mobile firmware. You can download driver setup for Broadcom here, and the driver setup includes in the zip folder of Qualfast tool.
About Flash Tools:

  • Tool name: Broadcom v2.3.0, Qualfast v2.0.5
  • Required OS: Windows XP, Vista, 7, 8, and Windows 10
  • Supported Operating system: 32 bit and 64 bit
  • Language: English and many others

You can download the latest version firmware, flash file for Karbonn A21 plus and A21 from the given downloading link. There are two downloading links, and both have the same file of Karbonn A21 plus firmware. You can download latest firmware from any of the given links.

Firmware | Mirror