Nexus 5

How to Install Android L Developer Preview on Nexus 5 / Nexus 7 within 10 Minutes (Simplest Guide)

If you have Nexus 5 or say Nexus 7, you can now install the latest Android L which has been just released few minutes back. With Android lovers already loving the new MATERIAL DESIGN interface, it’s time to install this update before anyone does. So before we slip into the detailed instructions which will help you update the device, you need to follow the list of quick pre requisites which are summed up below.

GM Settings

Video Tutorial Below

Note: Please note that this is the test build and may come with some of the bugs.

Quick Pre Requisites

  • All the data in your Nexus 5/ Nexus 7 can be backed up manually with the help of below steps. Though, it’s not a mandatory step to back up the data manually in this case, but it’s advised to take the backup manually.

SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log – Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names

  • Battery life in your device should be a minimum of 40% so as to make sure that your device doesn’t get turned Off in the middle of firmware update process. Head over to the path “Settings > Applications > Development > USB debugging” in your Nexus 5 so as to enable the USB Debugging Mode.

Disclaimer: Follow all the instructions mentioned in this article as if there is any damage caused due to not following instructions then we shall not be held liable or responsible. Just in case if you face any issues then we will try our level best to address the same.

Let’s proceed to the next step where we have summed up the detailed guide which will help you apply this latest update in your device.

Procedure to Update Nexus 5 or Nexus 7 with Android L Preview Firmware:

First up, you need to download the below mentioned files depending upon the device on which the update needs to be applied.

The ADB file has to be first extracted and installed, and it would take care of everything from installing the ADB drivers and phone drivers. Once that is done, go to the folder where you downloaded the image file for Android L for your Android device, i.e. either Nexus 5 or Nexus 7. It takes no more than a minute to install it and proceed to the next step.

Extract the Image files to a folder which you can access easily. Now, based on the computer you are using, follow the instructions below for Windows and Mac OS.

For Windows Users

Navigate to the folder where you extracted the files of Android L image, and there right click on the empty folder area to see the commands. Click on “Open command window here” and then the command window would open for that particular folder.

Nexus 5 Android L Install Right Click

Then, you will have to enter a few commands, in the following manner for the Android L image to be installed on your Nexus device.

adb devices

The devices which are connected would be listed, and you need to have the device unlocked or the installation would not happen.

fastboot devices

adb reboot bootloader

fastboot devices


The final command of flash-all.bat would confirm and a set of steps would occur in the command window, and the further process of installation would be done on your Nexus device, and after the reboot, you would be seeing the new Android version, i.e. Android L installed on your device.

Nexus Android L Command Window


For Mac Users

Here, it is not the command window but a terminal window which has to be opened in the ADB folder, and here, the command you need to enter in the terminal window is:

adb reboot bootloader

This should be followed by the following command in the Fastboot:

fastboot oem unlock

The other steps are similar to that for the Windows users, given above.

Note: If your device gets stuck, you need to long press the power button to turn Off the device and follow all the above instructions after restarting the device.

Alternatively, you can check on whether the device has been updated or not from the path “Settings > About phone” where the firmware version will be mentioned as Android L

Do let us know in the comments section just in case if you face any issues in the process of firmware update.



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