Hi, I've bought a manufacter refurbished uhd tv. When I switch to any hdmi (no matter plugged in something or not) the tv says: Updating tv software... dont turn off the tv or disconnect the power cable until the update finishes. Your TVwill turn itself off and on again automatically. It restarts and do it again and keep doing... I have tried to factory reset and tried updating from the menu and from usb as well but theres no new updates... so the thing is, I cant use hdmi because it always restart itself. Any idea how to solve this problem?