How To Install Android 5.0 Lollipop On Nexus 5 Or Nexus 7 Device

Android L is the latest version of Android mobile operating system developed by Google. It contains plenty of new features along with an efficient battery performance. If you have Nexus 5 Smartphone or Nexus 7 tablet and want to install Android L, follow the step by step procedure given here.

CAUTION: If anything happens during the installation process, don’t held us responsible. Proceed at your own will. The following tutorial is only for Nexus 5 phone and Nexus 7 Tablet. Don’t try it on other devices.

Prerequisites:

1. First and most important thing you have to do before installation process is taking a backup of personal data in your device. You can use this backup to restore the data, if something weird happens during the installation process and your device gets crashed.

2. Enable USB debugging on your Android device. To do this, click on Settings and go to “About Phone” option and tap on the “Build Number” for about six-seven times to enable “Developer Options”. Now go to Developer Options and tick the box next to USB Debugging to enable it.

After finishing these prerequisites, you can proceed with installation process.

Tutorial To Install Android 5.0 Lollipop On Nexus 5 Or Nexus 7:

1. To begin, you need to download the Minimal ADB and Fastboot tool and install it on your computer. Once done, you will see a command prompt window opening up just like the one given in the screenshot below.

2. Then, you have to download the Android 5.0 firmware file based on your device. You will also need 7-zip to extract the files from the .tgz format. Now first extract the .tgz archive and then extract the .tar file in the same folder where you have installed Minimal ADB and Fastboot tool (for Windows users the path will be:c:\Program Files (x86)\Minimal ADB and Fastboot).
3. Next, download USB driver for Nexus devices, extract it and save it on your computer.
4. Now, connect your device with computer by using original USB cable and then follow this path in your computer: Control Panel -> Devices & Printers. You will see your device listed there as “MTP”. Now open its properties by clicking on your device name. In the next window, go to Hardware Tab and select your device (Nexus 5 or Nexus 7) and then choose “Properties”. In the next window, go to “Driver” tab and click on “Update Driver” and then choose the folder where you have saved the USB Driver files. The update progress will go on for few seconds and once it is done, you will see your device as Android Composite ADB interface. Also, you will see a warning message in your device asking for permission to enable “USB Debugging”. Select “Always Allow” and enable it.
5. Next, you have to switch-off your phone and boot it in Fastboot mode. To enable this mode, press and hold the volume down, volume up and power buttons at the same time. Alternatively, you can type “adb reboot-bootloader” in the command prompt to restart your device in fastboot mode.

6. Now, your phone should be in a lock state, which won’t allow you to install the Android L image. You have to type “fastboot oem unlock” in the command prompt without quotes to enable it. In the next screen, you will be prompted with a message to “Unlock Bootloader”. Select “Yes” using the volume rocker.

7. With the bootloader unlocked, you can install the Android 5.0 Lollipop in your device by entering “flash-all” without quotes in the command prompt. The process will begin and it will go on for few minutes.

8. Once the process is finished, you must lock the bootloader option for security purposes. You can do this by booting into the fastboot mode (follow Step 5) and by entering “fastboot oem lock” in the command prompt.
9. Now reboot your device!

That’s it. Now you have successfully installed the Android 5.0 Lollipop on your Nexus 5 (or Nexus 7) android device.

If you encounter any issues during the installation process, you can ask here via comments.