Nokia Lumia 800 Hard Reset to Factory Settings

Also known as the Nokia Sea Ray, this smartphone comes with impressive features. Its AMOLED capacitive touchscreen and the 16 GB storage capacity are just two examples of such functionalities. Owning this device for a long period of time, though, you might have started to deal with some software-related issues. If these ones are currently interfering with your user experience, you should continue reading.

This article will not just show you how to do a hard reset on the Nokia Lumia 800, but it will also get you familiar to the way it works. This is how you will be better able to understand the phone and prevent these problems from coming back. By refreshing the OS and restoring the Lumia to factory settings, you will regain functionality of it, but also lose all data. Please make sure that you save everything before moving any further.


Coming with an 8 MP primary camera that uses Carl Zeiss optics, there is no secondary camera available on this phone. It runs on Windows 7.5 Mango and its OS can be upgraded to 7.8 for free. The non-removable 1450 mAh battery lets you use this Nokia Lumia for up to 265 hours in 2G and 335 hours in 3G. In terms of connectivity, there are also a Wi-Fi 802 hotspot and Bluetooth v2.1 present on the device.


Before we go into details regarding the procedure itself, you should create a backup that will include all the files you want to keep. Whether its pictures from your last trip or music you’ve copied from friends, videos you shoot or contacts you want to remember, all of these should be transferred on a different device. The easiest way to do it is by connecting the Lumia 800 to your PC with the USB cable, and then transferring everything into a folder.

When you’re ready to continue, you should know that you have two main options for the master reset. The first one uses the Main Menu and requires a functional phone – we recommend testing this one first, and only afterwards moving on to the next solution:

  1. From the Start Screen open the Menu by tapping the right-oriented arrow.
  2. Scroll down within the menu and press the icon corresponding to Settings.
  3. Go to About Phone, and then tap Reset Phone.
  4. If prompted, tap Yes and wait for the reboot to be over.

Many users reported the method above as not working – this may vary from one device to the other, and it may be due to serious damage caused by viruses. If that’s your case or your Nokia phone is simply frozen, we suggest doing the following:nokia-lumia-800-keys

  1. Switch the Phone off by tapping the Power key.
  2. Press and hold Volume Down, Power and Camera (5, 6 and 7) until the phone vibrates.
  3. Release the Power key and continue holding the other two for maximum 5 more seconds.
  4. The phone will now automatically boot up its default settings and be ready in about 5 minutes.

If the second method didn’t work either, you might want to consider taking the Nokia Lumia 800 to a service. Don’t forget that you still need to make a backup before letting anyone try to reset the device, as data loss might be produced as a result.