Question 1

why does my tv keep switching to the live tv antenna input by itself in the middle of watching netflix?

Accepted Answer

DIAGNOSIS This is almost always caused by the TV's "Auto Device Detection" feature misbehaving. It mistakenly thinks a new device (like an antenna) has been connected and switches to it. FIX You need to turn off the auto-switching feature. Press the Settings button, then go to All Settings > Connection > Device Connection Settings. Turn OFF "Auto Device Detection." Next, go to General > System > Additional Settings > Live TV. If you don't use an antenna at all, you can select "Live TV" here and turn it OFF entirely, which will remove it from your input list. If you do use it occasionally, just leave it off in the first step. IF THAT DIDN'T WORK There might be a signal issue with the antenna coax cable itself, even if it's not connected to an antenna. If you have a loose or unconnected coax cable plugged into the TV's ANT/CABLE port, unplug it completely. A floating cable can pick up electrical noise that tricks the TV into thinking a signal is present. HEADS UP If you have a soundbar or receiver connected via HDMI ARC (the HDMI 2 port on this model), its CEC control might also be sending switch commands. Try turning off Simplink (HDMI-CEC) in the Connection settings as a test to see if the unwanted switching stops.

Question 2

the magic remote for my 55ur9000 is super laggy and unresponsive, especially the pointer, new batteries didn't help

Accepted Answer

DIAGNOSIS The remote's motion sensor/gyro is having communication issues with the TV, or there's interference from other devices (like LED lights or soundbars). FIX First, re-pair the remote to the TV. Point the remote at the TV and hold down the Back button (the arrow pointing left) and the Home button (the house) together for at least 5 seconds. You'll see a pairing message on the screen. Next, check for interference. Turn off any bright LED lights, especially strip lights behind the TV, and see if the responsiveness improves. Also, go to your TV's Settings > General > System > Location and turn OFF "Set Automatically" and any permission for apps to use location. This can free up Bluetooth bandwidth. IF THAT DIDN'T WORK Reset the remote's internal sensor. On a flat, stable surface, slowly rotate the remote clockwise three full rotations, then counter-clockwise three rotations. Then, press and hold the (Settings) and (Mute) buttons on the remote together for 3 seconds. This recalibrates the gyro. HEADS UP The magic remote works on a combination of Bluetooth and infrared. Make sure the front of the remote (the IR blaster) has a clear line of sight to the bottom-right corner of the TV screen. Obstructions, even a coffee table book, can block the signal for button presses, though not the pointer.

Question 3

how do i clean the screen on this thing? the microfiber cloth just smears it and i'm scared to damage it

Accepted Answer

DIAGNOSIS You're likely dealing with a combination of dust and skin oils, and a dry cloth will just push the oil around. Using the wrong cleaner can permanently damage the anti-glare coating. FIX First, power the TV completely off so you can see smudges. Use a dry, soft microfiber cloth (like for glasses) to gently wipe away any loose dust in a single direction. Never use circular motions. If smudges remain, dampen a second clean microfiber cloth with distilled water only. Wring it out so it's barely damp, not wet. Gently wipe the screen in straight, vertical strokes. Immediately follow with the dry microfiber cloth to buff it dry. That's it. IF THAT DIDN'T WORK For stubborn spots, you can make a very mild solution. Mix 50% distilled white vinegar and 50% distilled water. Dampen the cloth with this mix, wring it out extremely well, and wipe gently. Follow immediately with a cloth dampened with only distilled water to rinse, then dry thoroughly. The vinegar helps cut grease. HEADS UP Never spray liquid directly onto the screen—it can run down into the edges and damage the electronics. Never use window cleaner, alcohol, ammonia, or abrasive cloths (paper towels, old t-shirts). They will strip the coating and leave permanent cloudy patches. Patience and distilled water are your best tools.

Question 4

tv makes a faint clicking sound every few minutes, not from the speakers, is it broken?

Accepted Answer

DIAGNOSIS That's the sound of the TV's plastic casing expanding and contracting slightly due to heat changes from the internal components. It's common, especially in the first few weeks of use or during long viewing sessions. FIX This is typically a normal physical characteristic, not a malfunction. However, you can minimize it by ensuring the TV has proper ventilation. Check that all the vents on the back and sides are completely clear—don't have it flush against the wall or crammed into an entertainment center. Leave at least 2 inches of space on all sides. Also, go to Settings > General > Energy Saving and turn OFF "Auto Power Off" and "Screen Off." Sometimes the clicking coincides with these power-saving features engaging and disengaging components. IF THAT DIDN'T WORK If the clicks are loud, rapid, or sound like they're coming from inside near the power supply, it could be a failing component. As a diagnostic, switch the TV's power mode: go to All Settings > General > System > Additional Settings > Quick Start and turn it OFF. This changes how the TV manages power. If the clicking changes or stops, it's likely related to the power circuit and you may want to contact LG support. HEADS UP The clicks often lessen over time as the materials settle. If the TV works perfectly otherwise—no flickering, no failure to turn on—it's almost certainly just thermal expansion and nothing to worry about.

Question 5

screen looks really dark in hdr mode on disney plus and netflix, is something wrong?

Accepted Answer

DIAGNOSIS The TV's picture settings aren't optimized for HDR content, which requires different brightness and contrast than standard shows. The default settings often leave HDR looking dim. FIX You need to adjust the picture mode specifically for HDR. First, start playing an HDR show (look for the HDR or Dolby Vision icon). While it's playing, press the Settings button and go to Picture. You'll see the mode is likely "HDR Vivid" or "HDR Cinema." Select "Expert (Dark Room)" for the most accurate image. Now, go into Picture Mode Settings. Make sure "Energy Saving" is OFF. Set OLED Pixel Brightness to 80-100. Set Contrast to 100. Leave Brightness at 50. Set Gamma to 2.2. For Color, set Depth to 55-60. Under Clarity, turn OFF Super Resolution and set Noise Reduction to Low. IF THAT DIDN'T WORK The issue might be in the app itself. For the built-in apps, try clearing the cache. Go to All Settings > General > System > Storage & Reset. Select "Internal Storage," then find the app (like Netflix) and select "Clear Cache." Do not select "Clear Data" or you'll have to log back in. HEADS UP HDR is designed for darker rooms. In a bright room, it will always look somewhat dim compared to a super-bright, oversaturated SDR image. This is normal. Give your eyes a minute to adjust—you'll see more shadow detail.

Question 6

the lg home dashboard keeps popping up randomly on its own, how do i stop it?

Accepted Answer

DIAGNOSIS The Home Dashboard (the overlay with your inputs and apps) is being triggered automatically. This is usually caused by one of the "Quick Access" buttons on the remote being pressed accidentally or a sticky button. FIX Check the remote first. Look at the colored buttons (red, green, yellow, blue) right below the number pad. One of them is likely programmed to launch the Home Dashboard. Press the Settings button on the remote, go to All Settings > General > System > Additional Settings > Quick Start. Make sure this setting is turned OFF. This is the main culprit for phantom dashboard pop-ups. Also, go back to the Home Screen and press and hold the "Home" button on the remote (the house icon). This will let you edit the dashboard—remove any widgets or inputs you don't use to simplify it. IF THAT DIDN'T WORK The TV's internal clock or an app might be causing it. Go to All Settings > General > System > Time & Date and set them manually instead of using "Auto." Then, perform a soft reset: unplug the TV from power, hold down the physical power button on the TV itself (if it has one) for 30 seconds, then plug it back in. HEADS UP If you have any universal remotes or gaming consoles controlling the TV via HDMI-CEC (Simplink), they might be sending the "Home" command. Try turning off Simplink in the Connection settings as a test.

Question 7

just got this lg 55ur9000pua and the wifi keeps dropping every few minutes, have to keep reconnecting it

Accepted Answer

DIAGNOSIS The TV's wireless connection is unstable. This is a common gripe with many smart TVs, often due to a power-saving feature that puts the Wi-Fi module to sleep or interference from your router's signal band. FIX Let's adjust the TV's network settings. Press Settings on your remote, then go to All Settings > General > AI Service. Turn OFF "AI Recommendation" and "Content Recommendation." Next, go back to General > Energy Saving and make sure all energy saving modes, especially "Screen Off" and "Auto Power Off," are disabled. Finally, go to Connection > Wi-Fi Connection. Select your network, choose "Advanced Settings," and change the IP Settings from "DHCP" to "Static." You'll need to enter your network details—if you're not sure, check a connected phone for the Gateway, Network Prefix, and DNS addresses. IF THAT DIDN'T WORK Your router might be broadcasting a combined 2.4GHz and 5GHz signal with the same name. Log into your router's settings and temporarily disable the 5GHz band. Connect the TV to the 2.4GHz network only, as it has better range through walls. See if the drops stop. HEADS UP A wired Ethernet connection is always more stable. If your router is near the TV, using a cable eliminates this problem entirely. The TV's Ethernet port isn't gigabit, but it's plenty fast for streaming.

Question 8

my new lg 55ur9000 keeps saying 'no signal' on every hdmi port even though my fire stick works on my old tv

Accepted Answer

DIAGNOSIS Your TV isn't recognizing the input signal. This is almost always because the HDMI port needs to be manually told what type of device is connected or the TV's input settings are confused. FIX First, unplug the Fire Stick and its HDMI cable from the TV. With the TV on, press the Settings button on your remote (the gear icon). Go to All Settings > Connection > Device Connection Settings > HDMI Deep Color. Make sure it's turned OFF for the port you're using (like HDMI 1). Now, plug your Fire Stick back in. Press the Input button on your remote, select the correct HDMI port, and this time, hold down the center OK button on it. A menu will pop up—select "Edit" and rename the input to "Streaming Device." This tells the TV what to expect. IF THAT DIDN'T WORK The TV's software might be glitching. Unplug the TV from the wall outlet for a full two minutes. This performs a hard reset that clears temporary memory. Plug it back in and try the HDMI port again. HEADS UP LG's Simplink (HDMI-CEC) can sometimes cause handshake issues. If you have problems with the TV turning other devices on/off, you can disable Simplink in the Connection settings, but try the rename fix first.

LG 55 inch 55UR9000PUA 4K Smart TV

Other Smart TVs