When you have a new smartphone, you get to enjoy in its awesome battery life and excellent performance, but after a while, you will notice that your device runs slower than it used to, and its battery life is not as awesome as it was. But that's normal for every smartphone, including Nexus 5. You installed and removed apps, you tweaked the settings and you did many other things along the way, so you can't expect the device to work as good as when you purchased it. The thing you can do is give your device a fresh start! To do that, you'll need to perform factory data reset. Once you do this, you will reset your smartphone to its factory settings. Data you stored on it, along with the applications you installed and your personal settings (display settings, ringtones, notification sounds, etc.) will be deleted. This option is also useful if you are planning to give your device to someone else or if you are planning to sell it. The new owner will get a device set to the factory settings, without any third-party apps and data. Let's see how to factory reset the Nexus 5. You may also read: How To Update Nexus 5 How to factory reset the Nexus 5 The process is very simple, but before you start, do the following: Backup your data Connect your device to a power source because this may take some time To factory reset your Nexus 5, follow the steps below: Navigate to Settings Tap Backup & Reset Tap Factory data reset Now tap Reset phone If you set the screen lock enter your PIN, passcode or pattern Tap Erase everything When the process is finished, choose the option to reboot your device. Your Nexus 5 is ready! You (or the new owner) will enjoy using the smartphone!