How to update Google Nexus 5 Kitkat to Lolipop???!!!!

That's right, Lollipop fans, there's already a way to get the Android 5.0 Lollipop update on your Nexus 5. As you may already know, the Lollipop source code was uploaded by Google to the Android Open Source Project (AOSP) a few days back. While we're still waiting for Google to push the Android 5.0 update over the air or to release the factory images, a slightly more motivated individual by the name of OldDroid has done the hard work for you and compiled the official code into a Lollipop ROM you can have right now.

You can get Android 5.0 Lollipop on the Nexus 5 right now if you want it. © Androidpcfree

Important information

This ROM needs to be flashed over the top of the existing Android L developer preview, so you can't do it if you're currently running stock Android. You need to flash the ROM via Fastboot and ADB and it doesn't include any Google apps, so you'll have to install the Gapps package, the Play Store and a boot animation yourself (never fear, we have tutorials for those too - just click the links).
If all of this is sounding far too technical, feel free to wait for the Android 5.0 Lollipop factory image for the Nexus 5 instead – this ROM is pure AOSP with no bells, whistles or even the Play Store. Note: the dev that created the ROM is going to provide a Gapps package from the Nexus 9 shortly, so keep an eye on the XDA thread for that update – without it you'll have no Gapps that work on Android 5.0!

The Google apps from the Nexus 9 will soon be available as a Gapps package. © ANDROIDPIT

Downloads

You'll need to have ADB Tools on your computer before proceeding, so download ADB Tools first. Then, you're going to need the Android 5.0 Lollipop ROM from XDA Developers – just look for the Downloads section and choose one of the links. You need to save the image in the ADB Tools/Platform Tools folder (or wherever the Fastboot executable file is stored). And remember to keep an eye out for the Lollipop Gapps package when the dev uploads it.
IMPORTANT: This process is, as always, potentially risky. Proceed at your own caution, as neither I nor AndroidPIT will be held responsible if anything goes wrong.

How to get Android 5.0 Lollipop on the Nexus 5

1. Turn off your Nexus 5.
2. Press and hold Power and Volume Down to enter Fastboot mode.
3. Connect your Nexus 5 to your PC with a USB cable.

This is Fastboot on the Nexus 5. © AndroidPIT

4. Go to the ADB Tools folder on your PC and press Shift and right click in some blank space in the folder.
5. Click Open Command Window here.

This Nexus 5 Lollipop ROM needs to be installed via ADB and Fastboot. © AndroidPIT

6. In the command window, type

fastboot devices

and make sure you see a serial number in the command window. This means your Nexus 5 has been recognized.
7. Now, type the following commands:

fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash cache cache.img
fastboot reboot

8. Your Nexus 5 should now reboot and start back up with Android 5.0 Lollipop!
What do you think of pure Lollipop? Tell us your thoughts below!