Update Galaxy Nexus I9250 with 4.1.2 SnapBlack JZO54K Jelly Bean Custom ROM

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Android 4.1.2 JZO54K for Galaxy Nexus I9250 (not official update, AOSP release) was released two days ago along with the official OTA for Nexus 7. We already looking at several custom ROMs that are out online for various Android phones. SnapBlack is one of the first custom ROMs that have been updated to the latest Android 4.1.2 firmware release. You can update Galaxy Nexus I9250 to SnapBlack JZO54K Android 4.1.2 custom firmware from the tutorial below. Your Galaxy Nexus should be already rooted and ClockworkMod recovery should be installed.

In this tutorial, we will tell you how to install Android 4.1.2 SnapBlack JZO54K custom ROM on Galaxy Nexus I9250 with complete steps and instructions. We have also given tips below to backup your data before proceeding. Remember, this is not an official firmware update. This is a custom ROM, based on AOSP release of the Android 4.1.2 Jelly Bean. Let’s get on with the tutorial now.

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 ;-)

Features of SnapBlack:

  • Android 4.1.2 JZO54K
  • AOKP+CM Sources
  • Faux Kernel v021
  • whole ui darkness (even apps)
  • System Optimization (such as sysctl, initial boot)
  • Ad-Host Free
  • Theme Chooser
  • Features that every user uses daily.
  • Fast, Smooth, last long lasting battery in your use.

Make sure you have installed all your USB drivers for the Samsung Galaxy Nexus to connect it with the computer. Download Samsung Galaxy Nexus 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.

Now, let’s proceed with the tutorial on the next page and update Galaxy Nexus I9250 to Android 4.1.2 SnapBlack JZO54K custom ROM.

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