Ustrel

I have the same exact issue since the last update, i tried to contact with support but they told me that i should send it to local LG service. Its obviously a firmware issue and there is no way to downgrade, my tv is literally not useable right now. 49SJ800V on 05.80.15 fw version. I found a fix by myself but its temporary. If you disable Wi-Fi or Ethernet the problem goes away but you can't use any of the online features. Hope they fix this ASAP.