How To Flash Kernel Image Using ADB and Fastboot


In some of the device we need to flash Kernel image using ADB and fastboot. In some of the device it is needed to root the device. So here is how to do so.

Read : How to Take Backup of Android Device


  1. Recovery Image.
  2. Android device drivers.
  3. ADB and Fastboot Drivers.
  4. If Bootloader available then it should be unlocked. See below
  5. USB Cable.
  6. Windows PC/Laptop.
  7. An Android Device. 😉

Read : How to Unlock Boot Loader of HTC Devices

Read : How to Unlock Boot Loader of Sony Devices

Steps to flash Kernel image using ADB and fastboot

  1. Install your device drivers and Minimal ADB and Fastboot on your computer.
  2. Enable USB Debugging on your device.(Go to Settings -> Developers Option -> Tick USB Debugging Option)(In case you does not find developer options in your device, then go to Settings -> About -> Tap on build number many times. A popup will show that you are now a developer.)
  3. Connect your device to your computer via USB cable.
  4. Open Minimal ADB and Fastboot on your computer.
  5. To check whether you device is detected or not type
    adb devices
  6. Reboot into bootloader mode using following command.
    adb reboot bootloader
  7. Copy recovery image to C drive and rename recovery image to recovery.img.
  8. Type the following command to flash recovery image.
    fastboot flash boot c:\boot.img
  9. Now type the following command to reboot your device.
    fastboot reboot
  10. Now disconnect your device.
  11. You have successfully flashed recovery image to your android device.

Read : How To Root Android Device Using Custom Recovery

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