Apple TV 2 - RESET Without upgrading

Hey guys I have a Apple TV 2, 5.3 (6105) and its jailbroken with KODI. When I press on KODI it the apple tv will begin to blink and go to the home page. When I press on netflix I get the following error : Netflix is currently unavailable. Try again later. Or any other app for that matter. I’ve tried everything and I’m scared i dont want to format it because it might upgrade software.