Nexus 4
CM10.1 based on Android 4.2 custom ROM released for Nexus 4.

Whenever an official version of the Android mobile operating software is released, unofficial ones always follow swiftly behind. An example of the latter is the CyanogenMod ROM, which has recently released an Android 4.2 (Jelly Bean) update for the Google Nexus 4. The file was released by XDA KonstantinKeller and developer reports indicate all features, with the exception of Themes and Gesture Typing (since this is not Android Open Source Project), are working.

This guide will help install the CM10.1 custom ROM on a Google Nexus 4. IBTimes UK reminds its readers it will not be responsible for damage to the device during installation and that this guide is meant only for the Google Nexus 4.  

Pre-Requisites

  • Ensure appropriate USB drives are installed and USB debugging mode is enabled
  • Ensure back-up of all important data
  • Ensure bootloader on Nexus 4 is unlocked
  • Ensure device is rooted and ClockWorkMod (CWM) Recovery is installed
  • Ensure battery has at least 80 percent charge

To Install CM10.1 Android 4.2 on Google Nexus 4

  • Download CM10.1 Android 4.2 ROM to computer
  • Download Google apps package (AOSP ROMs like CM do not contain Google apps like Gmail, GTalk, YouTube and Search)
  • Connect device to computer with USB cable and copy both dowbnloaded files to SD card on device (do not extract files)
  • Disconnect device and switch it off
  • Re-start in CWM Recovery (to do so, boot into bootloader mode by pressing Volume Down and Power buttons together and then browse to Recovery mode with Volume keys and use Power to select option)
  • Back-up present ROM by selecting Backup and Restore and then the Backup option and return to main Recovery menu
  • Perform a data wipe by selecting Wipe Data/Factory Reset from menu (wait till process completes and return to main menu)
  • Use Volume buttons to scroll to Install Zip from SD Card, select with Power and then select Choose Zip from SD Card
  • Browse to stored custom ROM, select and confirm installation
  • After installation of ROM, repeat selection process to install the apps package
  • After installation, return to main Recovery menu and select Reboot System Now to boot into CM10.1 ROM. The first boot may take five to seven minutes.

CM10.1, based on Android 4.2, is now installed on the Google Nexus 4.

[Source: Android Soul]