Hi in need of some assistance please, it's an XF80 43 inch TV.

TV was restarting after around a minute of being on the home screen so I performed a full reset by unplugging and holding the power and volume button.

The TV has reset and managed to get through to the welcome setup screen. However it still keeps restarting after around a minute so I cant get through the setup.

So whatever the fault is that kept making it restart is still present and causing havoc for me. 

Has anybody experienced this, the tv is only 4 years old and I would have liked at least 10 years use from it.