How to Update Nexus 4 to Android 4.2.2 Jelly Bean with RootBox v3.9.1 [GUIDE]

XDA developer, bajee11 has recently announced the availability of his latest custom release known as RootBox ROM v3.9.1. The ROM is based on the Android 4.2.2 Jelly Bean and delivers 'Android experience combined with both AOKP and CyanogenMod features.'

The RootBox v3.9.1, as the developer claims, is filled with several new features and fixes big issues found in the previous v3.8. Additionally, the random reboot and some major memory leak issues have been fixed in this release.

The RootBox v3.9.1 adds support for four more Android devices, making it a total of 13 devices.

RootBox ROM v3.9.1 features

AOKP features

CM profiles

Per App DPI

Per App tablet user interface

Per App Language

OTA updates-Goo Manager

Navigation bar colour

Camera: save to external memory

Phone: Advanced phone settings

Phone: Noise suppression

MMS: Message rate alerts (Modify SMS message limit for alert)

MMS: Fully customisable MMS theme

MMS: Soft keyboard type

Home button call answer (Accessibility option)

Variable size patter lockscreen

Pie (Paranoid Android)

LCD density changer

Low battery warning

Option to control cursor in text fields using Volume keys

Disable fullscreen keyboard

Expanded desktop

CRT Animation (Screen on/screen off)

Lockscreen see through (Paranoid)

Lockscreen shortcuts (Paranoid)

Lockscreen targets (CM)

Screen security features

cLock (Chronus)

Option to disable sound when adjusting Volume

Launch Music app on headset connection

Head over to the development page to learn more about the features of the RootBox ROM.

One such build is available for Google's fourth generation Nexus branded smartphone. Nexus 4 users, who wish to install Android 4.2.2 Jelly Bean and experience customised features using the RootBox ROM v3.9.1, may follow our step-by-step guide below. The aforementioned ROM is in its development stage so users may come across minor bug issues.

IBTimes UK reminds its readers that it will not be held liable for any damage to the device, therefore, proceed at your own risk.

Pre-requisites

1) Install USB Driver for Nexus 4 on the computer.

2) Ensure that USB Debugging Mode is enabled to transfer files using USB cable. [Press Menu>> Settings>> Applications. From there navigate and click on Development option and ensure the USB Debugging Mode is turned on.]

3) Make back-up for all the data of the phone.

4) The battery of the device should have charge above 80 per cent.

5) The phone should be factory unlocked.

6) The Nexus 4 should be rooted and should have ClockworkMod (CWM) recovery installed.

7) The RootBox Jelly Bean ROM used in the guide below works with Nexus 4 only; applying this on incorrect variant may brick the device.

Steps to install Android 4.2.2 Jelly Bean RootBox ROM v3.9.1 on Google Nexus 4

1) Download Android 4.2.2 Jelly Bean RootBox ROM v3.9.1 for Nexus 4 to the computer

2) Download Google Apps package

3) Connect the Nexus 4 to the computer using USB cable. Then copy the downloaded zip files to the SD card of the phone [Do not extract the files]

4) Disconnect the Nexus 4 from the computer and turn the device off

5) Now place the phone into Recovery Mode. To do so, first boot into bootloader mode from there navigate to 'Recovery Mode' using the Volume buttons. The select it using the Power button

Note: In Recovery mode, use the Volume buttons to scroll between the options and use the Power buttons to the select the required option.

6) In Recovery Mode, first perform a Nandroid backup of the existing ROM which you can be restored later in case the new one does not work or when users wish to return to the previous firmware. To perform Nandroid backup, select 'Backup and Restore' then select 'Backup' again on the next screen. Return to the main recovery menu once the backup is completed

7) Now perform data wiping task in order to avoid clash between new ROM and the previous ROM. To do so select 'wipe data/factory reset' then select 'Yes' on the next screen to confirm the action. Wait for some time until the data wiping process is over. Return to CWM Recovery main menu and select 'wipe cache partition,' once wiping cache partition process is completed, select 'Wipe Dalvik Cache' under 'advanced' option. After the action is completed, browse to recovery menu

8) Select 'install zip from sdcard' then select 'choose zip from sdcard.' Now navigate to the RootBox Jelly Bean ROM which is copied to the SD card. Select it pressing the Power button and confirm installation on the next screen. The installation process should begin now

9) After the ROM is installed, follow the similar procedure (step-8) to install the Google Apps zip

10) When the installation process is completed, go to main recovery menu and reboot the phone by selecting 'reboot system now.' The device will now boot into the customised Jelly Bean ROM and it would take about five minutes for the first boot

[Note: Toreturn to the previous ROM, boot the device into recovery then select 'Backup and Restore' and then restore the ROM by selecting it from the list.]

The RootBox ROM v3.9.1 based on Android 4.2.2 Jelly Bean should be installed and running on Google Nexus 4. Head over to Settings>> About Phone to verify the software version of the device.

[Source: Droid Noobs]