Fastboot allows you to flash images to your Android device. ADB stands for Android Debug Bridge and it allows you to send commands to your Android device over USB through a terminal/command-line interface such as Windows Command Prompt. In order to send the OTA update to your Nexus device, you must have ADB and Fastboot installed on your desktop computer. So please make sure everything is backed up before proceeding.

This means that you won’t lose your data, but we cannot stress enough how important it is that you back up all your important data in case something goes wrong. We like this method, since a factory reset isn’t required. The only difference is that you will get it right away if you follow the steps below.

This is the same exact update that Google will automatically send to your device at some point in the future. The second method is installing the OTA update, which is what this guide is about. You can check out our complete instructions for flashing the factory image here. This isn’t a bad way to go, but it requires a factory reset if your bootloader isn’t unlocked. The first option is to flash the factory image, which is like installing the complete Android software and firmware from scratch. There are actually two ways to manually update your Nexus device. We will add those update links as they get released, so be sure to bookmark this page for future reference. You can even follow the same steps to install subsequent Android Marshmallow updates when they come out. Just follow the steps outlined below, and you will be enjoying Marshmallow goodness in no time. This might seem like a daunting task, so that’s why we put together this complete guide explaining exactly how it’s done. The good news is that you can download the official OTA update straight from Google and manually install it yourself.

Unfortunately, that could take several weeks, which can feel like an eternity. Google has unleashed the Android 6.0 Marshmallow update for Nexus devices, which means it will eventually hit all devices as an over-the-air (OTA) update. Enable USB debugging and connect your Nexus device via USB to your desktop.Download the over-the-air (OTA) update zip file for your device.

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