Stuck on loading screen after factory reset

[jvgama 0]

Hey everyone, I think my TV is screwed up

After having some issues with the YouTube app on my LG 49UF6800, I read on LG’s support page that doing a factory reset should solve the problem. So I did that, the TV quickly rebooted and started showing a grey screen with three colored dots going in a circle, as if it was loading something. The thing is: this loading is endless. It’s been going for almost an hour, I’ve already tried unplugging it, but it goes right back to the grey loading screen. The only button that works on the remote is the power, as well as the mouse cursor.

Any ideas on how to fix this?

[Beeg86 0]

Ever find a fix for this issue? I'm having the ssme issue.  

[Habik 0]

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

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[Habik 0]

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!

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[Beeg86 0]

My TV wont even boot into the menu. It turns on and displays the lg splash screen then goes to a grey screen with the coloured rotating dots and stays there for hours. 

[Habik 0]

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?

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[Habik 0]

Btw how was your TV connected to internet? Was it via WiFi?
Or is it via ethernet cable?

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[jvgama 0]

I’ve tried booting it with a flash drive containing the latest firmware connected, but nothing happened. I ended up contacting LG support, that had a local store come get the tv and check what’s wrong, and according to them, the main board needs to be replaced.

[Beeg86 0]

Yes ive tried the USB with firmware. Once in a while it boots to a black screen sometime it doesnt even display the lg and just goes straight to the dots. It was on wifi