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The new Android L is far beyond just mobiles phones and tablets it powers your watch, your TV and even your car. The songs, photos, apps, and even recent searches from one of your Android devices can be immediately enjoyed across all of your Android devices. With Lollipop, your tablet shows your inbox alongside the message you have open, while your watch shows new emails as they arrive. For fewer worries and disruptions, you can adjust your settings so only certain people and notifications get through. You can directly respond to important stuff from your lockscreen. Power for the long haul with a battery saver feature that extends your device by up to 90 minutes. And now it's easier to manage your power usage - see the estimated time left before you need to charge, and when you're charging, approximately how much time until it's topped up and ready to go. With the added security you can share your device securely with guest user mode. Or create multiple user accounts to enable friends to log in on your device. In either case, no one will be able to access any of your stuff. And you can use Android Smart Lock to secure your phone or tablet by pairing it with a trusted device like your wearable or even your car.
Google has now rolled out an API-complete updated preview for the Nexus 7 (2013). If you have this device and you don’t mind factory resetting, you can experience the latest and greatest of Android in its nearly finished form. All you need are a few files and some patience.
Before we get started, this image will only works on the Nexus 7 2013 WiFi N7 released last year (Razor). The 2012 Nexus 7 and the newer LTE variant are not supported by this image.


Requirements:
1. A Windows based Computer (Xp-Vista-Win7-Win8) or MAC
2. Download and install ANDROID SDK for the Computer to recognize the device.
3. Enable Usb Debugging from Phone Settings>Developers Options.
3. Back up all your important data to a secure system. Follow this guide
4. Ensure the phone is atleast 60% charged.
5. Download Android Lollipop  for your Device.

Note: There is some risk in doing this, but most mistakes can be undone by flashing the stock image back on your device.
Procedure:
1.   When you download the Android L image, it will be a .tgz file.   Use your favorite archiving program (I like 7-Zip) to open that file and pull out the .tar file.

2.  Do the same thing with the .tar, but this time you’ll get a folder containing six files. Move all of those directly into the platform-tools folder (that’s the one that will have fastboot and ADB executables in them).

3.  Power off your Nexus 7 tablet. Now boot it into Fastboot mode by pressing ‘volume down’ and ‘power’ buttons at the same time. When the ‘START’ text appears you should connect your smartphone to your PC using the USB cable. Verify that your device is detected properly by opening a command prompt (or terminal on Mac) in the platform-tools folder from your Android SDK directory. Then type fastboot devices. If you see a serial number, all is well. Remember, on a Mac most commands need to be prefaced with a ‘./’ string. If you are not bootloader unlocked already, use fastboot oem unlock from a command prompt to unlock and reset the device. Get back into the bootloader to proceed.

4.  While you are connected to computer via USB and in bootloader mode, launch the flash-all.bat (Windows) or flash-all.sh (Mac) file. You may need to run these as administrator.


A window will appear and tell you that it’s pushing files over to the device, then it writes the new system data and (hopefully) installs Android L. Don’t worry if you get errors about recovery.sig and boot.sig being missing. This might still fail the first time, but don’t worry–you can just run the script again.

When the flashing has completed, your phone or tablet will reboot. It’s going to take at least five minutes for the first boot into Android 5.0 Lollipop. If something goes sideways, you can always get back into the bootloader and try the flash again. Remember, this is a still developer preview, just a more polished one. There might be a few bugs and broken features, but this image is supposed to let developers make sure their apps are ready to go once the final build starts rolling out next month.
If everything went fine you will be enjoying the latest of the Android on your device for your feedback and suggestions please use the comments box and if you liked the post share it with your friends.

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