By
Virus17
Hi all, I have this 4K LG 49UF772V TV which has had this issue since I bought it second hand and I'm wondering if anyone has any idea how it can be fixed as I am looking to sell it.
The issue: On the LG menu and main home screen + sub menus and programs such as Netflix, there are black squares all over the display which makes it impossible to use. However, the TV works flawlessly when using the display with a HDMI device connected.
I suspect this could be either a software issue since there's no physical defects with the display itself. The TV has the latest software update running (04.06.25). I've attempted to reflash it and downgrade it but I haven't managed to find a way to do it.
Also note that only 1 of the 3 HDMI ports work. The other two gives no output when a device is connected.
I have also carried out a factory reset and this has not made a difference.
I have attached a short video showing the TV connected to chromecast and the display working as expected and then pressing the settings button yields artifacts/small black squares. + some pictures showing this.
Thank you in advance!
LG_49.mov
By Paul Griffith
By Virus17
By Villa
By bogeyman62
By Lebona
Question
Michael Cutts
I don’t use screen share. Suddenly SCREEN SHARE is showing up highlighted when I am trying to select the HDMI that I need to be using. However, since SCREEN SHARE is already highlighted and will not go away, it keeps everything else with exception from antenna tv from working. I have gone into the SCREEN SHARE APP and was able to deactivate the sound. Could not figure out away to cancel completely. Please help!
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