Does that happen as well when you take a USB key containing LG firmware and plug it in to USB slot of your TV and then you plug your TV in power outlet? Sent from my Mi A1 using Tapatalk
Seems like the site don't like pdf files. Check the LG support site and ensure you cross reference the software with the type of your TV! Sent from my Mi A1 using Tapatalk
Have you tried loading the firmware via USB stick? Check the manual attached how to do it. http://cloud.tapatalk.com/s/5a6620957128b/Software_Upgrade_Guide_v2_eng.pdf Sent from my Mi A1 using Tapatalk