How to Install Nexus S I9020 Android 4.1.2 AOKP Build 5 Jelly Bean Custom Firmware

• Last modified: Android Tips

We have covered various Android 4.1.2 custom ROM tutorials for the Nexus S since its release, but AOKP remains our favourite of all times. After the Galaxy Nexus, AOKP’s latest custom ROM release – Android 4.1.2 AOKP Build 5 Jelly Bean – is now available for the Nexus S I9020 as well. After installing this ROM, you will see a sudden boost in the performance of Android 4.1.2 on your phone, all thanks to the hard work developers behind AOKP has put into it. You can now install Android 4.1.2 AOKP Build 5 Jelly Bean on Nexus S I9020. Remember, this is a custom firmware with additional features on top of stock AOSP Android 4.1.2 Jelly Bean. This is not an official firmware.

In this tutorial, we will tell you how to install Android 4.1.2 AOKP Build 5 Jelly Bean custom ROM on Nexus S I9020 with complete steps and instructions on how to backup your phone. Your Nexus S should be rooted and ClockworkMod recovery should be installed. Let’s get on with the tutorial now and flash a new custom ROM on the phone.

Nexus S Android 4.0 software update

Disclaimer: All the tools, mods or ROMs mentioned below belong to their respective owners/developers. We (TeamAndroid.com) or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial ;-)

UPDATE: AOKP Milestone 1 based on Android 4.1.2 Jelly Bean is now available. Read the tutorial here!

Android 4.1.2 AOKP Build 5 Jelly Bean Features:

  • Custom NavBar for Tablets
  • NavBar widgets are back from ICS
  • Highly customizable Lockscreen Ring targets, with a shiny new editor in ROMControl! (also thanks to CM for the base of the framework part)
  • Alternate default app picker (like in GB)
  • Menu UI Overflow Toggle
  • Option to disable vibration for Notification expansion
  • RAM Bar in the Recents panel
  • Timeout and instant lock options for Slide lock
  • Tons of beautiful new icons by Kwes
  • VPN Traffic amount in human readable format

Make sure you have installed all your USB drivers for the Samsung Nexus S to connect it with the computer. Download Samsung Nexus S USB drivers! Apart from just the USB drivers, there are a few more things that you need to take care of.

1. You need to enable USB debugging mode. This helps to connect your Android phone with the PC. See here: How to Enable USB Debugging.

2. Your phone battery should be 80-85% charged. If your phone goes off suddenly because of battery, during flashing ROMs or installing mods and updates — your phone might go dead permanently. See here: How to Check Battery Percentage.

3. Backup all your important data that you might need as soon as your flash a new ROM, or make a backup for just in case, you never know when anything might go wrong. See below on how to backup data:

4. Your phone should be factory unlocked. Additional instructions for locked Android devices will be added in the tutorial for unlocking devices.

5. Remember, this is not an official firmware update. This is a custom ROM, based on AOSP release of the Android 4.1 Jelly Bean.

Now, let’s proceed with the tutorial on the next page and update Nexus S I9020 to Android 4.1.2 AOKP Build 5 Jelly Bean custom ROM.