Nokia Lumia 1020 Hard Reset Method

1. You should press and hold together Volume Down + Power button for 15 seconds.
2. Now your phone will reset and restarts.

Second method for Windows 8:

1. Power off your device.
2. Next press and hold Volume Down, and keep this button until you connect the charger, and you see an exclamation mark.
3. Then press buttons in this order: Volume Up -> Volume Down -> Power button -> Volume Down.
4. Now your phone will reset and reboots.

Third method for Windows 7:

1. Switch off your cell phone.
2. Then please press and hold Camera button + Volume Down + Power button until your phone vibrates.
3. Now release only Power button and keep pressing the Camera button and Volume Down for a couple of seconds -> 4-5 sec until the device reboots.
   * Do not forget to check for updates Go to Settings > Phone Update.

Fourth method:

1. Check your handset that is it on.

2. Now on the Home/Start screen scroll down to the bottom of the screen.
3. After that press icon with arrow.
4. Next tap Settings -> About phone -> Reset your phone -> Yes.
5. Now your phone will reset and restarts.