Nexus 4 is powered by a 1.5 GHz quad-core Qualcomm Snapdragon S4 Pro processor, featuring four Krait cores and the class-leading Adreno 320 GPU. In addition to the fast processor, the Nexus 4 also packs 2 GB of RAM and either 8 or 16 GB of internal storage. The device also features a 4.7″ 720p display, delivering 320 ppi.

Google rolled out the official Android 5.1.1 for the Nexus tablets some days back. Recently they added the factory images for the Nexus smartphones and soon the OTA updates will start. But instead of waiting for the OTA updates, you can install it manually via the factory image. Follow the guide below.

N4

Disclaimer: Follow the instructions at your own risk. The writer cannot be held responsible for any bricked or unusable devices. Even though the chances of your device getting bricked are negligible, the owner of the device must take full responsibility of it!

Pre-requisites and Backing up your Nexus 4:

Requirements:

  • Nexus 4 drivers installed on the computer
  • Nexus 4 rooted and bootloader unlocked
  • Android SDK installed on the computer
  • ADB and Fastboot installed on the computer
  • Nexus 4 factory image

Steps:

  1. Make sure ADB and fastboot files are placed in the same folder.
  2. Download the Nexus 4 factory image and extract it to a convenient location.
  3. Connect the phone to the PC.
  4. Power off your phone and boot it into Fastboot/Bootloader mode by pressing and holding the Volume Up, Volume Down and Power buttons until the Fastboot menu and START icon appear on the screen.
  5. Go to the folder obtained by extracting the files in step 2. Copy and paste all the files to the Fastboot directory.
  6. Using factory image files in your Fastboot directory, run the following commands depending on the OS installed on computer:
    On Windows: Run the file “flash-all.bat”.
    On Mac: Run the file “flash-all.sh” using Terminal.
    On Linux: Run the file “flash-all.sh”.
  7. Wait for the process to complete. The phone will reboot automatically.

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