How To Get Android L Developer Preview On Your Nexus 5 (Windows) : The Lion's Den University
Class Notes - 03/29/17

03/29/17 - Class Notes

This class we are going to be discussing multiple things from the textbook. Re-read some of the sections you discussed later to make sure you understand all of it. In order to get back to the site once the teacher goes away, simply hit the close button at the top right next to comments and share. If you are the teacher and reading this, cut the kid a break - if your class was more interesting this would have never happened in the first place.

There are several things that can

How To Get Android L Developer Preview On Your Nexus 5 (Windows)


Every once and a while you’ll wake up from a drunken stupor and say, “Hey, this seems like something I should totally do” …this is not one of those moments. If you don’t know what the Android L preview is, scroll down and look at the pretty pictures, and I can assure you following this instructions will totally break your Nexus device, if you don’t know what you’re doing (or iPhone if you’re dumb enough to try it). You will delete all data on your device by upgrading the OS.

Alright, now that you’ve been warned, you’ll need to download everything on this list before you get started:

  1. The latest version of the Android SDK - It contains all the tools you’ll need to do all the cool stuff.
  2. The Google USB Driver for Windows.
  3. The correct Android L system image (and then a recovery image, for when you want to revert back to KitKat)

Now for the fun part…

Unpack the SDK to the root of your drive (thats C:/ for you noobs). I always remove the Eclipse and SDK folder, so the file hierarchy looks something like C:/android/sdk or C:/android/eclipse.

Add the SDK platform tools to your Windows Path (here is a quick guide). It should look something like this C:/android/sdk/platform-tools;”

On your Nexus device enable developer options and USB Debugging. (You do that by clicking the build version in the “About Phone” setting Window a bunch.

Plug in your Nexus device and install the Google USB Driver using Windows Device Manager.

Windows Device Manager

It should look something like this once the driver is installed.

Unpack the Android Developer Preview, to an easy to navigate folder ex: “C:/dev” 

Test to see if you can access adb and fastboot from your command line.

OK, now for the fun stuff…

1) Reboot your device into fastboot mode:

- From your command line type “adb reboot bootloader” or  turn off the device, and turn it on while holding down the Volume Up, Volume Down and Power button as the device powers up.

2) Your device is probably locked, so unlock your devices bootloader (this wipes your device of all data) by typing in this command:

“fastboot oem unlock”

3) Using your command line CD over to the directory where you have unpacked the Android Developer Preview.

ex: “cd C:/dev”

4) There is a flash-all.bat file you want to execute. It will install the new system image files.

Once your device reboots restart the device back into fastboot mode, using the Volume Up + Volume Down + Power button key combination.

5) From your command line execute: “fastboot oem lock” 

And that’s it, you should have the Android Developer L Preview working on your Nexus 5.Screenshot_2014-06-26-18-07-17 Screenshot_2014-06-30-14-00-19 Screenshot_2014-06-26-15-41-29 Screenshot_2014-06-26-15-43-43



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