How to Install Android L Preview Version on Nexus 5 and Nexus 7


Guide to Install Android L Preview Version on Nexus 5 and Nexus 7


As you might all know Google unveiled a developer preview of its Latest Android “L” update, But why a preview version?. Preview version will give the app developers to start optimizing their apps for the new Material Design paradigm. This decision of Google is also great in a way that OEMs will also be able to release quick updates after the final release of Android 5.0. And you people don’t have to wait long for the update to arrive on your phone. The Android 5.0 L comes with a revamped flat, but colorful UI with instance of 3D effect. Google also has changed the look and feel of the notifications and recent apps menu.

For those of you who want taste how the new Android looks you will need a Nexus 5 or a Nexus 7 device as the update currently support only these two devices. As this is the preview version only, the update cannot be installed over the air. You have to follow a little complicated process to install Android L preview update. Nexus 4 devices are not yet supported so Nexus 4 users have to wait a little longer.

Follow the guide below to know how to install  Android L preview version on Nexus 5 and Nexus 7.

  1. Root your Nexus 5 device if your Nexus 5 is not rooted already.

Here is how to root a nexus 5

    1. Download
    2. Extract the ZIP file.
    3. Enable USB Debugging. You can do so by opening the settings menu on your Nexus 5. Tap on Developer options, Checkmark the USB debugging option. This will allow Windows PC to issue commands to your device.
    4. Boot your device in bootloader/fastboot mode. You can do so by turning your device off, then holding VolDown+Power to turn it on. You should see a black screen with a picture of the Android mascot on his back.
    5. Launch CF-Auto-Root.
    6. Using a USB cable connect your device to the computer. Now go to the folder where you have extracted the CF-Auto-Root file. Within the folder, hold down the shift key, right click and then select “Open command window here” on the context menu that appears. Type root-windows.bat in the command window.
    7. Follow the On screen instructions.
    8. The command window will you the rest of the way. Note! if your device has not been unlocked before, this method will wipe all your data leaving you with the original factory setting. So make sure to backup your data first. You can check if the bootloader is locked or unlocked. Look at the last line of text and you will know if your your bootloader is locked or unlocked. If your bootloader is locked follow this guide to unlock it.
    9. Once you issue you issue the command, just sit back and let computer do the rest. Your phone will be restarted with a red Android Logo.

Thats it your phone is now rooted.

2.  The next thing you need to do is Flash a custom recovery. Follow this Guide to Flash Custom recovery.

3.  Boot into recovery. Follow this guide to do so. How to boot into custom recovery. Unmount the system.

4.  Wipe the system, data, Dalvik and cache because you will need a completely new install we as Android L contains a       64-bit compiler and many other changes that you find in the previous versions of Android.

5.  Flash the customized Android L ROM from recovery. Your computer will reboot and the first loading of Android L        will appear. The first boot process take several minutes to complete so, be patient and do not reboot your device.


In case if your Nexus 5 gets in a bootloop on start-up, you should follow these steps.

Disconnect your Nexus 5 from your computer and turn it off.

Press and hold the Volume Down and Power button at the same time to enter fastboot.

Select Recovery Mode, Press Power button to confirm. This will enter you into custom recovery mode.If you see Android logo laying on its back just press the Volume up and power button and release to enter stock Recovery.

Use the volume buttons in the recovery menu to highlight wipe cache partition. Press Power button to confirm.

Scroll down to wipe data/factory reset and power to confirm. Reconfirm your selection and let your Nexus 5 Reset. Your Nexus should now reboot, if it does not reboot automatically, you have to reboot it manually by selecting “reboot system now” from the menu and hit the Power button to confirm. Thats it, your Nexus 5 should now boot successfully.