JBSourcery is cool because it is known as being one of the most customizable and tweak-able ROMs out there to date. In fact, the creators do indeed pronounce themselves as having “the most customizable ROMs on earth” if their site motto is anything to go by. You will be able to do plenty of theme changes with this ROM. It is based off of the AOSP build, which as you all probably are already familiar with as being very tweak-friendly. If you own a Galaxy Nexus, this is one of the best ones out there that you can grab.

Sourcery started being created around mid 2012 and by the beginning of 2013 the final build was released. When you download it today it will be the final product.

Backing up is the most important thing to do. Whatever you do, don’t forget it. One easy way to remember is by noticing if you ever have to perform a full data wipe factory reset, everything will be gone. When I say all I mean it. It will look exactly like it did when you first purchased it with nothing on it. It’s not a big deal as long as you remember to back up first. You can do this by using the handset’s internal storage otherwise known as the SD card. This card makes life a heck of a lot easier than it was before they came out. This era should be known as the Micros SD and they always come in the back of the phone. Something that doesn’t come inside the handset packaging, however, is the reader. You will need to shop around for this read so when you plug it into the Windows based PC it can be recognized. Think of it as a similar thing to Adobe reader. Without it you won’t be seeing your documents. Once you have then you can transfer the files over to a new folder and store them. After you have finished this guide, then you can transfer the files back again and it will be in perfect working order back to the Galaxy Nexus.

Warranty shouldn’t be too much of a concern because you probably already have root access and subsequently have ruined it anyway. If you are yet to open it up, however, then that is something you should note.

Temporarily disable any antivirus that is running from the mobile. There is no computer used on this side of things other than for backing up so it doesn’t need to be turned off from there. It isn’t always this connection that causes all the problems, though, so it is advised you turn it off the Android side of things to for the time being. If there is still some cause for concern, it may be the firewall which you forgot. This can often be a separate entity all together depending on what program you are running.

This guide was created to help and assist those in need of it. We have not intentionally harmed anybody’s devices or written anything wrong. We do extensive research before posting and hope that it is up to the standard necessary to be successful. Having said that, we won’t be held liable if anything does end up going wrong with your things. If you are not happy taking on that responsibility, then neither are we. You always have the option of following a different tutorial instead of this one.

(Source: Android Forums). Download it from this link.

The Manual:

1. Once you have the ROM downloaded from the link above, you can then download the Google Gapps.

Turn the Nexus off. Turn it back on but this time turning it on into recovery.

Clear all of the caches. This will eliminate any possible issues that may arise. Caches have been known to get stuck and therefor not show you want really should be shown. It can also cause conflicts between the programs.

2. Install both of the things you downloaded.

Power down and turn it on once again.

3. The markets app should still be finish up its installation process as we speak. Sign in and allow this to finish.

One last time it requires another boot procedure.