Hi @plsHelpMexox
Have you checked the aerial connection to the box ?
What happens if you connect the aerial directly into your television inbuilt Freeview tuner and undertake a TV channel scan on your television, then does all the Freeview channels show or not ?
Also check this website to see if there is any issues or planned maintenance of the TV transmitter in your regional area.
https://www.freeview.co.uk/corporate/platform-management/planned-engineering-works
To factory reset the NowTV Freeview Smart box, you can either go into the box menu settings where there is an option to factory reset the device or flip the box over and underneath the box there is a small reset button which you need to hold in for about 15 to 20 seconds.