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Black Screen on brand new C4
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By chris7ben
The sound and picture are out of sync when screen mirroring from my iPhone 16 Pro to my LGQNED70A6A TV, using the internal speaker. I have tried all the recommended tips in the settings to cure the issue with no success. However, when I isolate the TV from the mains supply for 60 seconds and restart it, the syncing issue is cured but degrades after a day or so. My iPhone software is up to date and there is no firmware upgrade available for the TV. My LinkSys router has a full fibre connection. The only connection into the TV is the mains supply. Any help much appreciated. Thanks in advance.
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By Stylianos
i am having an issue with my LG OLED77C2 tv that started happening (i believe) once i have updated from web24 to 25. It seems like whenever the tv is displaying a source from any of my four HDMI inputs, while i am watching the screen goes black randomly for a few seconds and it loses audio as well during the black screen. Once this happens the audio usually comes back as soon as the image does, however not always. The audio might dissapear completely. In order to fix that i might need to power cycle the tv or unplug the hdmi input out, wait a little and then plug back in. Moreover, sometimes when the black screen flash happens it cripples most of my native apps on the tv. So if i switch to netflix or youtube right after the black screen flash, both apps populate normally all the video/film options in the main menu but when i try to actually play any of the video/films, they dont play and it is throwing an error. These black flashes never happen when i am watching netflix or youtube. Only when using my hdmi inputs. ive changed brand new high quality cables but that did not fix my issue. For the xbox i was already suing an ultra hish speed 2.1 hdmi cable but ive re placed that as well with a brand new one. ive also changed the tvs main board to a brand new and it still happening. Once the dealer changed the board, the tv was behaving normally without the issue. However after a few days i updated the tv to the latest firmware and this started happening. what do i do?
FYI: I tried EVERY SINGLE option to troubleshoot the issue. Disabled VRR, AMD Freesync, ALLM, HDMI Deep Colour, SIMPLINK, I basically set my tv to display video and audio in the most archaic way just to troubleshoot. Still doing it. I am using an xbox series x on input 1 and a mag520 box on input 3. Does it on both sources. Moreover, in case this helps whenever this happens while on the xbox the Dolby vision/HDR logo appears on the top right right after the video comes back once the black screen is over depending on what settings i have the xbox on. Also swapped to different inputs. Still doing it
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By rems1989
Hi everyone,
I’m running into a very inconsistent issue when streaming my Windows 11 PC with apollo (fork of Sunshine) to my LG C4 TV using Moonlight (webOS).
The setup worked perfectly for about 6 months at 2K / 90 FPS with high bitrate.
Around 2–3 weeks ago, the issue started without any clear change on the PC side (possibly after a webOS update).
Symptoms:
• Moonlight on the TV shows “connection unstable” with a black screen
• Behavior is inconsistent and unpredictable :
Sometimes nothing works at all with black screen Sometimes 2K / high bitrate work or not yesterday 2K didn't work but lowest resolution (1280x..) worked • Streaming to my phone works fine, so the host PC and network seem OK
What I’ve tried:
• Clean reinstall of Moonlight on the TV and Apollo/Sunshine on the PC
• H.264 only (no HEVC, no AV1, HDR off for testing)
• All bitrate / FPS / resolution combinations
• Ethernet and Wi-Fi
• Different Windows display modes
• Virtual display disabled
Setup:
• Host PC: Windows 11, NVIDIA GPU (RTX 3070)
• Apollo installed on PC
• LG C4 TV, webOS 10.2.2, sideloaded Moonlight client (1.6.36)
• PC and TV tested on both Ethernet and Wi-Fi (2 gbps internet speed on my computer)
• Streaming to other clients (android phone) seems to work reliably
Feel free to ask me any information needed
Thanks for your help
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By bos2prov
I have a Roku device attached to my LG TV model # 55UQ7570PUJ. As I’m watching something on the Roku and using my Roku remote, every now and then something that I press on that Roku remote brings up the LG ‘Select a menu item’ screenwhere AV Reset is highlighted. Any idea what could be happening here? One clue: after I press the undo button on the LG remote to get rid of that window, I find that the volume is all the way down. Maybe I’m hitting the Roku remote’s Mute button in some weird way and that brings up the ‘Select a menu item’ window?
It’s surprising that something I press on the Roku remote brings up an LG dialog, but that’s what’s happening. Thanks for any help.
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By News Reporter
As the Official Home Appliance Partner, SKS Captivates
Visitors With a Stunning Showcase of Elegant Built-In Kitchen Solutions
SEOUL, Nov. 7, 2025 — LG Electronics (LG) showcased its ultra-premium built-in kitchen appliance brand, SKS, at Design Week Mexico 2025, one of Latin America’s largest design festivals. As the exclusive home appliance brand partner of this year’s event, SKS successfully elevated its brand presence in the region, reaffirming its leadership in the global luxury built-in market.
At Design House, the flagship exhibition of Design Week Mexico, visitors were invited to experience the full SKS lineup of ultra-premium built-in kitchen appliances, including the SKS refrigerator, freezer, oven, cook top, wine cellar and dishwasherAlso on display were LG’s premium home appliances, such as the InstaView MoodUP refrigerator, QuadWash® dishwasher, WashTower laundry solution and Styler clothing care system.
Design House transforms iconic local mansions and historic buildings into creative design spaces, each designed through collaboration between leading global architects, interior designers and brands. Spanning approximately 1,126 square meters, this year’s exhibition presented visitors with diverse, trend-forward inspiration for designing refined living environments.
Held under the theme “Designed in Mexico,” the 2025 edition of Design Week Mexico celebrated the artistry and craftsmanship of Mexican design. Reflecting this spirit, SKS’s exhibition theme, “Korean Precision with Mexican Soul,” captured the harmony between SKS’s stylish, technologically-advanced design philosophy and the warmth and creativity of Mexican craftsmanship. The Design House exhibition, which ran until November 2, drew strong interest from professional designers, students and the general public alike.
By expanding direct engagement with customers across the globe, SKS continues to strengthen its reputation as a specialist built-in brand and its position in the premium appliance market. Earlier this year, SKS served as the exclusive home appliance sponsor of the Food & Wine Classic 2025 in Aspen, Colorado – an event attended by more than 4,000 chefs, culinary professionals and visitors. In Seoul, LG recently opened SKS Seoul, a newly renovated showroom offering visitors a complete experience of SKS’s latest ultra-premium built-in kitchen innovations.
LG rebranded its ultra-premium built-in line earlier this year, transitioning from SIGNATURE KITCHEN SUITE to SKS. The refreshed identity, designed to be more modern and intuitive, has enhanced brand recognition and accelerated growth in the premium market. Despite the new name, SKS continues to embody the True to Food philosophy that has defined the brand since its inception.
“At Design Week Mexico, we had the unique opportunity to collaborate with world-class architects and designers to create an inspiring space – one brought to life by our stylish and sophisticated SKS solutions,” said Lyu Jae-cheol, president of the LG Home Appliance Solution Company. “LG will continue to strengthen engagement with customers around the world and further establish SKS as a global leader in the ultra-premium built-in kitchen appliance market.”
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Question
TVNerd95
Hi,
Bought a new C4 OLED but i get black screens randomly when using internal streaming apps or just going back to the home menu. It seems as if WEBOS is crashing and i can only cut power and reboot when this happens...
Is it a software or panel issue
0 answers to this question
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