Google recently rolled out the Android 4.2.2 JDQ39 Jelly Bean software update for its fourth generation Nexus smartphone. The official release does not bring any major features, but fixes a lot of bugs in the previous build.

The good news for Nexus 4 users is that the SlimBean Build 1 custom ROM carrying numerous enhancements and customised features is now available. The custom build is based on the latest Android 4.2.2.

Nexus 4
SlimBean ROM featuring Android 4.2.2 Jelly Bean has released for Nexus 4 Google

SlimBean 4.2.2 Build 1 ROM features

Full JDQ39 (Android 4.2.2) base

Replace Clock widget with Shiny new DashClock

Added slide before unlock

Bring back long press to toggle PW

MMS: Add quick emoji to text input

Phone: Set my phone number

Added Kill App/Expanded Notification shade/Toggle expanded desktop to hardware binds

Fully configurable advanced reboot toggle

Enhanced circle battery and clock

Camera: Add software HDR Mode

Calendar: Add snooze to events

Enhance T9 and search

Settings: Add forget all networks to Wi-Fi

Notification: Limit notification sounds for interval

Camera: Add animation to mode switch

Sound: Add configurable volume adjust sounds

Notification: Add custom carrier text

Enhance electron beam control

Fixes and optimisations


MusicFX FC

Batterybar UI glitch

QuickPulldown flips notification shade

Phantom QuickSettings toggle

Colour picker issues

Recents apps panel bug

Camera not animating

Colour picker in landscape

Recovery touch

Expanded desktop

Contacts call grouping

Alarm FC on update

Notification shortcuts spacing/tablets transitions

Choppy lockscreen on Low-mem HDPI

Lockscreen browser shortcut

Longpress NavBar Home not loading recent apps

Advanced Slim Settings

Head over to the source page to know more about bug issues.

Nexus 4 users who wish to upgrade their handsets with SlimBean Build 1 Android 4.2.2 Jelly Bean ROM may follow our step-by-step guide below. IBTimes UK reminds its readers that it will not be held liable for any damage to the device. The aforementioned custom ROM is compatible only with Nexus 4; flashing this on any other variant is likely to brick the device.


1) Download and instal USB Driver for Nexus 4 to the computer.

2) Enable USB Debugging Mode. [Press Menu>> Settings>> Applications. From there navigate and click on Development option and ensure the USB Debugging Mode is turned on.]

3) Back up all data on the phone. If the device has a custom recovery installed, then create back-up for the same.

4) The battery of the phone should have at least 80 percent charge.

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

6) Make a Nandroid backup of the previous phone set up before proceeding.

7) The phone should be factory unlocked.

Steps to install SlimBean Build 1 Android 4.2.2 Jelly Bean ROM on Nexus 4

1) Download SlimBean Android 4.2.2 Jelly Bean ROM for Nexus 4 to the computer

2) Download Google Apps package

3) Plug in the USB cable to the Nexus 4 to connect it with the computer. Now copy the downloaded zip files to the SD card of the phone

4) Disconnect the phone from the computer and turn it off

5) Place the phone into Bootloader Mode by turning it on while pressing and holding the Volume Up, Volume Down and Power buttons together

6) Follow the instructions on the screen. Select BOOTLOADER and then go to RECOVERY

7) In CWM Recovery, perform data wiping task first. Then navigate to 'flash zip from SD card' and press the Power button to select it. Once again press the Power button and select 'Choose zip from SD card'

8) Using the Volume buttons, browse to the Jelly Bean ROM zip file saved on the SD card. Select it by pressing the Power button and confirm installation on the next screen

9) After the ROM is installed, repeat the procedure to install the Google Apps zip

10) Once the installation process is complete, return to the main recovery menu and select 'Reboot System Now.' The device will boot now and it will take about five minutes to boot up the first time

SlimBean Build 1 custom ROM based on Android 4.2.2 Jelly Bean is now installed and running on the Nexus 4. Head over to Settings>> About Phone to verify the software version of the device.

Click here for step-by-step guide to root Nexus 4 on Android 4.2.2 Jelly Bean.

[Source: Team Android]