Exact model-family answer directory
LG TV line troubleshooting
LG TV line (OLED C4, with the other LG OLED, QNED and UHD models in the model notes): processor and panel (from LG's product page); formats; software updates; HDMI, and a fix for each symptom below.
- Processor and panel (from LG's product page)The Alpha 9 AI Processor Gen7 drives an OLED panel of over 8.3 million self-lit pixels, with a 144 Hz refresh rate for gaming.
LG TV line (OLED evo, QNED and UHD) colors look wrong, washed out or tinted
Open record LG · no soundLG TV line (OLED evo, QNED and UHD) has picture but no sound
Open record LG · no pictureLG TV line (OLED evo, QNED and UHD) has sound but no picture
Open record LG · restartingLG TV line (OLED evo, QNED and UHD) keeps restarting or will not stay on
Open record LG · too darkLG TV line (OLED evo, QNED and UHD) picture is too dark or keeps dimming
Open record LG · remote not workingLG TV line (OLED evo, QNED and UHD) remote will not control the TV
Open record LG · flickerLG TV line (OLED evo, QNED and UHD) screen flickers, flashes or goes black intermittently
Open record LG · BluetoothLG TV line (OLED evo, QNED and UHD) will not pair with Bluetooth headphones or speakers
Open recordConfirm the model first
Which units this covers, and how to tell yours is one of them
- Model numbers and patterns
- OLED C4, with the other LG OLED, QNED and UHD models in the model notes; also B5 OLED TV (OLED48/55/65/77/83B5*); C2 OLED TV (OLED42/48/55/65/77/83C2*); G3 OLED evo TV (OLED55/65/77/83G3*); M4 wireless OLED TV (OLED65/77/83/97M4*); UR9000 UHD TV (43/50/55/65/75UR9000*)
Published specification
What is true of this model and changes how you fix it
- Panel2024 OLED evo with the Alpha 9 AI Processor — no Micro Lens Array (that is reserved for the G4/M4), so it is dimmer than the G4 but brighter than the B4. Self-emissive; bright-window dimming is the Auto Brightness Limiter, not a backlight.
- Smart platformwebOS 24 with the Magic Remote. Update at Settings › Support › Software Update; screen share is AirPlay 2 and Miracast. Tizen/Google-TV/Roku steps do not apply.
- Gaming / HDMIFour HDMI 2.1 ports up to 144 Hz with VRR, ALLM, G-Sync and FreeSync — a 2024 first for LG. Game Optimizer must be on for the input and the cable must be 48 Gbps.
- FormatsDolby Vision and Dolby Atmos, plus Filmmaker Mode.
- Software updatesLG states up to 5 years of software updates through webOS Re:New.
- HDMIReviews and LG's UK page list four HDMI 2.1 ports, all at 48 Gbps, so a 4K 120 Hz console does not need a specific port.
- Also coveredB5 OLED TV, ports (from Tom's Guide's review): Four HDMI 2.1 ports, two USB, Ethernet, optical audio out, coaxial and an RS-232C service port. Four ports face out the left edge (two HDMI, coaxial, one USB) and the rest sit on the side of the back panel, with eARC on one of the HDMI ports there.
- Also coveredB5 OLED TV, refresh rate: 120 Hz native. The C5 and G5 are listed with VRR above that, and the B5 is not.
- Also coveredB5 OLED TV, mounting: 300 x 200 mm VESA holes. The stand is two rectangular metal feet.
- Also coveredB5 OLED TV, screen behavior: Tom's Guide found the panel highly reflective and dim in HDR. Glare in a bright room is a property of this screen, not a defect, so moving lamps or lowering ambient light is the first fix.
- Also coveredB5 OLED TV, remote: The new slimmed Magic Remote; Tom's Guide rated it well designed.
- Also coveredC2 OLED TV, ports (from Tom's Guide's review): Four HDMI 2.1 ports and three USB.
- Also coveredC2 OLED TV, sizes offered: 42, 48, 55, 65, 77 and 83 inches (OLED42C2PUA through OLED83C2PUA, per RTINGS).
- Also coveredG3 OLED evo TV, ports (from Tom's Guide's review): Four HDMI 2.1 ports and three USB.
- Also coveredG3 OLED evo TV, no stand in the box: The G3 ships without a stand. Tom's Guide says getting one takes a separate purchase of about $150 and either a hunt or a long shipping wait, so a G3 that will not stand up is missing its stand rather than broken.
- Also coveredM4 wireless OLED TV, zero Connect box (from T3, FlatpanelsHD and other reviews): The M4 is a G4 panel with a separate box that connects wirelessly to the screen. The TV still needs its own power cable, but the HDMI and other cables plug into the box, which can sit out of the way.
- Also coveredM4 wireless OLED TV, ports on the box: Three HDMI 2.1 (one with eARC), two USB-A, Ethernet and optical. That is one HDMI fewer than the four on a G4 or C4, so count your devices before choosing this model.
- Also coveredM4 wireless OLED TV, wireless limits: The box is described as sending 4K Dolby Vision video and Dolby Atmos audio wirelessly, and up to 4K at 144 Hz with ALLM, VRR, HGiG, FreeSync and G-Sync. If the picture cuts out, the first check is whether something is blocking the line between the box and the screen.
- Also coveredUR9000 UHD TV, panel (from LG's 65UR9000PUA page): A 60 Hz native panel with the alpha 5 AI Processor Gen6, HDR10 and HLG, and webOS 23. It is a 60 Hz set, so 4K 120 Hz from a console is not available.
- Also coveredUR9000 UHD TV, ports: Three HDMI inputs with eARC on HDMI 2, one Ethernet and two USB 2.0. Wi-Fi 5 and Bluetooth 5.0.
- Also coveredUR9000 UHD TV, sound, power and mounting: 2.0-channel speakers, 86.5 W, and 52 lb without the stand with 300 x 300 VESA holes. A Magic Remote is included.
Where these figures were read. lg.com/us/tvs/lg-oled65c4pua-oled-4k-tv.com OLED C4 product page + What Hi-Fi 2024 LG lineup (α9, no MLA, 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 — OLED65C4PUA product page; RTINGS — LG C4 OLED review; Tom's Guide — LG B5 OLED review; Tom's Guide — LG C2 OLED TV review; RTINGS — LG C2 OLED review; Tom's Guide — LG G3 OLED TV review; T3 — LG OLED M4 review; FlatpanelsHD — LG begins rollout of 'wireless' M4 OLED TVs; LG USA — 65UR9000PUA 4K UHD Smart TV; LG USA — 65UR9000PUA support page.
Exact questions
Questions that only have an answer for the LG TV line (OLED evo, QNED and UHD)
My LG C4 won't hit 144Hz.+
Use an HDMI 2.1 port with a certified 48 Gbps Ultra High Speed cable and turn on Game Optimizer for that input; the source (PC or console) must also be set to output 120/144 Hz. The C4 supports up to 144 Hz on all four ports, but it stays at 60 Hz until the input mode and the source are both switched.