Troubleshooting

Solutions to common issues and problems

75 guides

Fixing Connection IssuesFix Oled Control connection issues with LG OLED TVs. Troubleshoot Wi-Fi discovery, pairing failures, IP setup, app permissions, and router blockers.LG Magic Remote Pairing and Reset GuidePair or re-register an LG Magic Remote, distinguish Bluetooth pointer faults from infrared button problems, and avoid model-incompatible reset advice.LG ThinQ Won’t Connect to Your TV: Fix GuideFix LG ThinQ TV discovery and pairing by checking the network, phone permissions, TV registration, account state, and standby wake settings.App Crashes and Stability IssuesTroubleshooting guide for Oled Control app crashes, freezes, and stability problems across iOS, macOS, and Android platforms.LG C1 G-SYNC Black Flashes: Fix Full-Screen Signal DropoutsFix LG C1 G-SYNC black flashes by separating HDMI link resets, driver/VRR state, cable bandwidth and near-black OLED gamma flicker.LG C1/G1 Dark Scenes Keep Dimming: Diagnose Auto-Dimming SafelyDiagnose gradual dimming in dark films on LG C1/G1 by separating static-scene protection, energy controls, source changes and room adaptation.LG C1/G1 Dolby Vision 4K 120 Hz FixRestore Dolby Vision gaming at 4K 120 Hz on LG C1/G1 by checking firmware, Xbox capability detection, HDMI topology and source output.LG C5 165 Hz Black Screen or No Signal: Safe HDMI DiagnosisFix LG C5 black screens or no signal at high PC refresh rates by isolating HDMI bandwidth, VRR, drivers, cables and firmware safely.LG C5 and G5 Dolby Vision Too Dark: Diagnose Mode, Room and FirmwareFix overly dark Dolby Vision on LG C5 and G5 by separating Cinema modes, ambient light, source mastering, energy controls and firmware changes.LG C5 and G5 Movie Stutter on Slow Pans: Motion Without GuessingReduce movie stutter on LG C5 and G5 by distinguishing 24p cadence, OLED response, frame-rate mismatch and motion interpolation artifacts.LG C5 and G5 VRR Flicker in Dark Games: What Actually HelpsDiagnose LG C5 and G5 VRR flicker in dark games by separating unstable frame times, low-frame compensation, HDMI faults and panel behavior.LG C5 eARC No Sound, Dropouts or Atmos Delay: A Clean Fix PathResolve LG C5 eARC silence, dropouts and Atmos delay by testing format support, HDMI-CEC, source routing, cables and receiver handshakes.LG C5 or G5 Problems After a Firmware Update: Recover SafelyRecover LG C5 and G5 picture, sound, HDMI or webOS behavior after firmware updates without unsafe rollback files or premature factory resets.LG C5 PC Text Looks Blurry or Colored: Check Chroma and ScalingImprove blurry or colored LG C5 desktop text by checking native resolution, scaling, RGB or 4:4:4 output, PC input mode and OLED limitations.LG C5 webOS Apps Show a Black Screen or Crash: Practical FixesFix LG C5 webOS apps that hang on logos, open to black screens or crash by isolating app state, network, storage and TV firmware.LG C5 Xbox Black Screen When HDR or VRR Switches: Fix the HandshakeStop recurring LG C5 Xbox black screens during HDR and VRR switches by isolating console settings, HDMI mode, AVR routing and link training.LG C6 165 Hz G-SYNC Hitches: Isolate 120, 144 and 165 HzDiagnose LG C6 G-SYNC hitches at 165 Hz by separating frame pacing, VRR, HDMI link, NVIDIA drivers and TV firmware safely.LG C6 Wi-Fi or Ethernet Disconnects: Network Isolation GuideDiagnose LG C6 Wi-Fi and Ethernet disconnects by separating router, DHCP, DNS, apps, firmware and possible TV hardware faults.LG G5 Brightness Dims on White Windows: ABL or a Real Fault?Explain and diagnose LG G5 brightness changes on white windows, desktops and bright scenes without disabling OLED protection or copying unsafe values.LG OLED C1/C2 24p Movie Stutter and Judder FixReduce 24p movie stutter on LG C1 and C2 by separating OLED stutter, cadence judder, dropped frames and motion-interpolation artifacts.LG OLED C1/C2 4K 120 Hz HDR No Signal FixFix no signal at 4K 120 Hz HDR on LG C1, C2, G1 and G2 by isolating HDMI bandwidth, Deep Color, cable, receiver and source output.LG OLED C1/C2 ASBL vs ABL: Identify Which Dimming You SeeDistinguish LG C1/C2 area-based ABL from time-based static-scene dimming, energy controls and logo protection using safe repeatable tests.LG OLED C1/C2 Atmos Missing After Standby: Restore the Audio StateRestore missing Atmos after LG C1/C2 standby by isolating EDID, CEC/eARC wake order, source and app state, codec route and display ambiguity.LG OLED C1/C2 Black Crush: Restore Shadow Detail SafelyRestore missing shadow detail on LG C1/C2 by testing RGB range, black level, source mastering and near-black processing without lifting true black.LG OLED C1/C2 Blurry PC Text and Chroma FixImprove blurry PC text on LG C1/C2 by checking native 4K, PC input, RGB 4:4:4, scaling, ClearType and unavoidable WOLED subpixel behavior.LG OLED C1/C2 Color Banding in Streaming: Find the Real CauseDiagnose color banding on LG C1/C2 by separating source compression, bit depth, HDR conversion, chroma processing and panel uniformity.LG OLED C1/C2 Dims During Sports: Scoreboards, Ice and BroadcastsDiagnose LG C1/C2 sports dimming from sustained bright fields, scoreboards, energy modes and broadcast/source changes without disabling protection.LG OLED C1/C2 Dolby Vision Raised Blacks: Isolate Source and ModeDiagnose gray or raised Dolby Vision blacks on LG C1/C2 by separating title mastering, internal apps, HDMI range, picture mode and firmware.LG OLED C1/C2 DTS No Sound: Choose a Compatible Audio RouteFix DTS no-sound on LG C1/C2 by separating unsupported TV decoding, eARC pass-through, player conversion, receiver capability and hardware faults.LG OLED C1/C2 eARC Audio Dropouts: Diagnose the HDMI ChainFix LG C1/C2 eARC audio dropouts by isolating TV output, cable, CEC state, receiver firmware and codec changes without random resets.LG OLED C1/C2 eARC Lip Sync: Fix Audio Delay Without GuessingFix LG C1/C2 eARC lip-sync delay by measuring whether audio is early or late, isolating source, TV and receiver processing, and setting one delay point.LG OLED C1/C2 Game Mode Looks Dull or Dark: Fix the HDR ChainFix dull LG C1/C2 Game Optimizer HDR by checking HGiG calibration, Dynamic Tone Mapping, RGB range, game output and room conditions.LG OLED C1/C2 Green or Purple Flashes at 4K 120 HzDiagnose green and purple flashes on LG C1/C2 by separating HDMI link errors and GPU state from near-black VRR flicker or panel defects.LG OLED C1/C2 Logo Brightness Dimming: Test the Real TriggerTest LG C1/C2 logo dimming separately from ABL, static-scene protection, energy controls, source changes and firmware variation.LG OLED C1/C2 Pixel Cleaning: How Often Should You Run It?Learn when LG C1/C2 Pixel Cleaning is appropriate, why routine manual cycles are discouraged, and how to assess retention or panel artifacts safely.LG OLED C1/C2 RGB Range Washed Out: Match Full and LimitedFix washed-out or crushed blacks on LG C1/C2 by matching RGB Full/Limited between PC, console and TV without copying universal black-level values.LG OLED C1/C2 Soundbar Has No Audio: Fix ARC and eARC SetupRestore LG C1/C2 soundbar audio by checking HDMI ports, Sound Out, SIMPLINK, ARC/eARC capability, format support and source topology.LG OLED C1/C2 TPC and GSR: Safe Alternatives to Disabling ThemDiagnose C1/C2 dimming before TPC/GSR changes and use supported film, PC and gaming alternatives without service-menu bypasses.LG OLED C1/C2 VRR Flicker in Dark Games: Diagnose and Reduce ItReduce LG C1/C2 VRR flicker by separating near-black gamma fluctuation, LFC transitions, unstable frame times and HDMI signal errors.LG OLED C1/C2 VRR On or Off? Decide Per GameChoose VRR on or off per game on LG C1/C2 by comparing tearing, stutter, latency, frame-time stability, caps and near-black flicker.LG OLED C1/C2 Windows HDR Looks Washed Out: Fix SDR MappingFix washed-out Windows HDR on LG C1/C2 by separating SDR-in-HDR mapping, Auto HDR, app color management, range mismatch and native HDR.LG OLED C1/G1 40 Gbps HDMI: 4K 120 Hz and 10-Bit ExplainedUnderstand why LG C1/G1 40 Gbps HDMI supports 4K120 10-bit RGB/4:4:4, where chroma and DSC matter, and what 48 Gbps would change.LG OLED C1/G1 Pink Tint on Screen: Uniformity or Viewing Angle?Assess pink tint on an LG C1/G1 using seating-angle, reflection and normal-content tests before calibration, exchange or LG service.LG OLED C2 42 Desktop ABL: Reduce Brightness Changes SafelyReduce distracting LG C2 42 desktop brightness changes by identifying ABL, static-scene dimming and safe SDR, UI and workload mitigations.LG OLED C2 Optical and ARC Sound Drops: Isolate the Shared FaultDiagnose LG C2 sound dips on both optical and ARC by separating source, TV processing, transport, receiver lock and codec faults.LG OLED C2/G2 Auto-Dimming After Firmware: Test Before and AfterDiagnose C2/G2 auto-dimming after firmware with repeatable scenes, mode audits, energy settings, restarts and documented LG support evidence.LG OLED C2/G2 HDMI Cable Works at 60 Hz but Not 4K 120 HzDiagnose an LG C2/G2 cable that works at 4K60 but fails at 4K120 using certification, direct-link and format-isolation tests.LG OLED C3 Blurry PC Text: Fix 4:4:4 Chroma, Scaling and EDIDDiagnose blurry or colored PC text on an LG C3 by verifying native resolution, EDID modes, RGB or 4:4:4 output, HDMI bandwidth, scaling, and panel limits.LG OLED C3 eARC Dropouts or Missing Dolby Atmos: Diagnosis and FixFix LG C3 eARC sound cuts, missing Dolby Atmos, mute soundbars, and unstable AVR control by isolating the source, format, HDMI link, and CEC handshake.LG OLED C3/C4 Ethernet Slower Than Expected: Link and App DiagnosisMeasure C3/C4 wired networking without assuming gigabit, then isolate TV port, cable, router, app, server, Wi-Fi and conditional USB-adapter limits.LG OLED C3/C4 Magic Remote Pointer Lag: Pairing and Interference FixDiagnose a laggy C3/C4 Magic Remote pointer through batteries, pairing, RF interference and webOS load without confusing it with HDMI game input lag.LG OLED C3/C4 Quick Start+ HDMI Handshake Faults: Reversible DiagnosisTest whether Quick Start+ correlates with C3/C4 no-signal faults while separating CEC, EDID, firmware, cable, receiver, VRR and source problems.LG OLED C3/C4 Screen Shift Crops the Desktop Edge: Safe Geometry FixTell protective Screen Move from overscan, wrong resolution, and GPU scaling when a C3/C4 desktop edge or taskbar appears cropped.LG OLED C3/G3 Clicking Sound: Normal Relay, Expansion, or Fault?Separate expected C3/G3 power-relay and thermal-expansion clicks from repeated startup faults, electrical arcing, buzzing and service-worthy power symptoms.LG OLED C4 144 Hz Flicker or Black Screen: PC Troubleshooting GuideFix LG C4 black screens or flicker at 4K 144 Hz by isolating 120 versus 144 Hz, VRR, HDR, GPU drivers, HDMI cable bandwidth, ports, and mode switching.LG OLED C4 Dead vs Stuck Pixel: Safe Diagnosis and Warranty StepsIdentify LG C4 dead pixels, stuck subpixels, debris, image retention, and panel faults with safe color tests, Pixel Cleaning, and service evidence.LG OLED C4 Dimming Changed After Firmware: Evidence-Based DiagnosisTest LG C4 dimming after firmware with controlled scenes, matched settings, energy and protection checks, and source isolation without unsafe rollback.LG OLED C4 HDMI Input Icon Keeps Resetting: Name and PC Mode FixRestore C4 HDMI names/icons through Home Hub while separating device auto-detection, SIMPLINK, PC mode picture effects and firmware resets.LG OLED C4 HGiG Too Dark: Calibrate HDR in Game Optimizer CorrectlyFix an LG C4 that looks too dark with HGiG by identifying HDR calibration errors, double tone mapping, title-specific settings, room light, and range mismatch.LG OLED C4 VRR Flicker in Dark Scenes: Frame-Time and Gamma FixesReduce LG C4 near-black VRR flicker by diagnosing frame-time spikes, fps-floor and LFC crossings, unstable caps, frame generation, and gamma behavior.LG OLED C4/G4 Black Screen After Firmware: Safe Isolation GuideDiagnose a C4/G4 black screen noticed after an update without assuming firmware causality or using unofficial rollback files.LG OLED C4/G4 Near-Black Flashing and Macroblocking: Source or Panel?Separate compressed-video macroblocking, OLED near-black processing, VRR flicker, and genuine C4/G4 panel faults with repeatable source and pattern tests.LG OLED C4/G4 Power-Supply Buzz: Normal Noise or Electrical Fault?Separate low-level C4/G4 switching or mechanical noise from load-dependent coil buzz and urgent arcing, overheating or power faults without opening the TV.LG OLED C4/G4 Wi-Fi Disconnects After Standby: Network DiagnosisFix C4/G4 Wi-Fi failing after standby by isolating saved credentials, DHCP, router bands, Quick Start, firmware, DNS, signal quality, and radio faults.LG OLED G3 Dolby Vision Gaming Washed Out: Xbox Black-Level FixFix washed-out Dolby Vision gaming on an LG G3 by isolating Xbox RGB range, Dolby Vision Game mode, HDR calibration, title implementation, and HDMI capability.LG OLED G3 Dolby Vision Movies Too Dark: Cinema and Streaming FixesDiagnose dark Dolby Vision films on an LG G3 by separating mastering intent, room light, Cinema versus Cinema Home, energy saving, app, source, and firmware.LG OLED G3 Movie Stutter: 24p Cadence, Real Cinema and TruMotion FixesReduce LG G3 movie stutter by distinguishing native 24p cadence, 3:2 judder, OLED stutter, dropped frames, and TruMotion interpolation artifacts.LG OLED G3 Raised Blacks over HDMI: Fix GuideFix gray-looking HDMI blacks on an LG G3 by matching RGB range, isolating the source and picture mode, and using near-black patterns without crushing detail.LG OLED G3 Wall Mount Ventilation and Heat: Installation DiagnosisInstall an LG G3 using model-specific mount guidance, preserve vents and cable paths, and distinguish expected OLED warmth from a ventilation or hardware fault.LG OLED G3/G4 Apple TV Match Frame Rate Black Flash: Normal or Fault?Distinguish normal Apple TV HDMI resync black screens from recurring G3/G4 faults using Match Frame Rate, Dynamic Range, QMS, cable, app, and AVR tests.LG OLED G3/G4 PS5 Says 120 Hz Unsupported: Complete Signal CheckRestore PS5 120 Hz on an LG G3/G4 by checking game support, console output information, HDMI cable/port, Deep Color, AVR topology and VRR.LG OLED G4 Dims Large White Windows: ABL, ASBL and Safe Desktop FixesDiagnose LG G4 white-window dimming by separating immediate ABL from time-based ASBL/TPC, energy saving, thermal behavior, HDR desktop, and source changes.LG OLED G4 MLA Not Bright in HDR: Peak Highlights and APL DiagnosisDiagnose a dim LG G4 in HDR by separating peak highlights from APL, picture mode, source output, room light, energy settings, and possible faults.New LG OLED C1/C2 Vertical Banding: Wait, Compensate or Exchange?Assess vertical banding on a new LG C1/C2 using normal content, automatic compensation and fixed-pattern tests while recognizing colored-line defects.Why the LG C2 42-Inch Looks Dimmer Than the 55-Inch C2Explain and improve LG C2 42-inch brightness by separating size-specific output, ABL, room reflections, picture mode and review measurements.