To perform a factory reset, please follow the steps below.
A factory reset resolves most software-related or operational issues, if you're unable to carry this out you can contact our Support team through the link at the bottom.
Open the Smart TV view by pressing the menu button on the remote, and selecting "More Apps" in the bottom right corner.
Select the "System Settings" option.
Scroll down to "System" and then select "Reset."
If your TV is still having issues after this, please try performing a power cycle.