LG G4 OLED TV troubleshooting

Published specification

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

• Panel
  2024 OLED evo with a Micro Lens Array (MLA) panel and the Alpha 11 AI Processor — one of LG's brightest 2024 OLEDs, well above the C4 and B4. Self-emissive, so a bright-window dim is the Auto Brightness Limiter, not backlight bloom.
• Smart platform
  webOS 24 with the Magic Remote; updates at Settings › Support › Software Update, screen share via AirPlay 2 and Miracast. LG guarantees several years of webOS Re:New feature updates on this generation.
• Gaming / HDMI
  Four HDMI 2.1 ports up to 144 Hz with VRR, ALLM, G-Sync and FreeSync. Requires Game Optimizer on and a 48 Gbps cable to leave 60 Hz.
• webOS 24
  LG guarantees several years of webOS Re:New feature updates on this generation.
• Four HDMI 2.1 ports
  Game Optimizer must be on and a 48 gigabit cable used for the input to leave 60 hertz.
• Brighter than the C4
  The MLA panel and the Alpha 11 processor make it substantially brighter than the C4's conventional evo panel, though both are 2024 OLEDs on webOS 24 with four HDMI 2.1 ports.
• The model family
  The G4 is the gallery design that mounts flat to a wall. It is the higher brightness tier of the 2024 lineup.
• Setup basics
  Use a certified HDMI cable for each source, enable the right picture mode for HDR and keep the software up to date.
• Gallery design and mounting
  The G4 is made to hang flat to the wall, and a thin gap left for the cables decides whether the TV sits flush. LG's wall bracket and its Zero Connect box, which sends the picture wirelessly on larger sizes, are optional, so check what came with your set before buying cables.
• Brightness and the Auto Brightness Limiter
  Peak brightness on a G4 is high for an OLED, but the TV reduces brightness when a large part of the screen is white for a long time. Dimming that begins after a minute of a bright, static scene is the protective limiter, and it is controlled in the Energy Saving and OLED Care menus.
• OLED care routines
  Pixel Refresh runs by itself in standby once enough hours have passed. Leave the TV plugged in, and do not cut the power at a switch, since interrupted routines leave the panel's uniformity compensation unfinished.

Where these figures were read. lg.com/us/tvs/lg-oled65g4sub-oled-4k-tv.com OLED G4 product page + FlatpanelsHD/What Hi-Fi 2024 LG OLED lineup (MLA, α11, 144Hz)

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. LG Support — LG TV support.