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LG G5 OLED evo TV troubleshooting

LG G5 OLED evo TV (OLED55/65/77/83/97G5*): ports (from Tom's Guide and Stuff reviews); gaming settings; wi-Fi and smart home; stand and mounting; size, weight and sizes offered; remote, and a fix for each symptom below.

  • Ports (from Tom's Guide and Stuff reviews)
    Four HDMI 2.1 ports, each at full 48 Gbps, with one of them the eARC port, plus three USB, Ethernet, optical audio out and a coaxial jack. Two HDMI and two USB face downward under a snap-on cover in the middle of the back, and the other HDMI (with eARC) and one USB face out from the left side, so a soundbar goes on the left-side eARC port.
No pictureNo soundHDMI no signalWi-FiApps not workingRemote not working

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Model numbers and patterns
OLED55/65/77/83/97G5*

Published specification

What is true of this model and changes how you fix it

Where these figures were read. lg.com/us/tvs/lg-oled65g5wua-oled-4k-tv.com OLED**G5WUA product page + FlatpanelsHD 2025 LG OLED lineup

Manufacturer support for this product line. LG Support — TV and home theater support. Official LG television manuals, webOS support, diagnostics and repair entry point.

Also read for this model. Tom's Guide — LG G5 OLED review; Stuff — LG G5 OLED TV review.

Exact questions

Questions that only have an answer for the LG G5 OLED evo TV

Why does my LG G5 dim during bright scenes?+

That is the OLED Auto Brightness Limiter, not a fault. When a large part of the screen is very bright, the TV limits total panel power to protect the pixels and manage heat, so a big white window dims slightly. It is normal OLED behavior on every LG OLED, including the brightest G5. Turning off Energy Saving and the ambient light sensor reduces other automatic dimming, but ABL on full-screen brightness cannot be disabled.

My LG G5 won't run 4K 120Hz or VRR from my console/PC.+

Connect the source to one of the HDMI 2.1 ports with a certified 48 Gbps Ultra High Speed cable, then turn on Game Optimizer for that input (Settings › General › Game Optimizer). VRR, ALLM and the 120–165 Hz modes only activate when that mode is on and the source is set to output them; the panel supports up to 165 Hz but it will sit at 60 Hz until the input mode is switched.