Question 1

i need to wall mount this 70 inch tv but the ports on the back are super recessed, my hdmi cables won't fit.

Accepted Answer

DIAGNOSIS The TV's design has a shallow cavity. Standard 90-degree or bulky HDMI connectors will hit the back panel before seating fully. FIX You need right-angle HDMI cables that are specifically designed for low-clearance ports. Buy cables labeled 'low profile' or 'flat 90-degree'. The connector should be no thicker than the cable itself. Connect all necessary cables (HDMI, power, Ethernet) BEFORE you lift the TV onto the wall mount. IF THAT DIDN'T WORK For existing cables, you can use slim HDMI couplers/extenders. These are small, straight female-to-male connectors that give you an extra inch of clearance, allowing your regular cable to connect. HEADS UP Do not force a standard HDMI plug. You can crack the port's internal housing. If a cable doesn't seat smoothly, it's the wrong shape. Test-fit all cables while the TV is still easily accessible, not when it's already on the wall.

Question 2

webos is getting super slow and laggy, clicking an app takes forever and the home screen stutters.

Accepted Answer

DIAGNOSIS The TV's internal storage is clogged with cached data from apps and updates, a common issue with prolonged use. FIX Free up storage. Go to All Settings > General > System > Storage > Internal Storage. Select 'Cached Data' and clear it. Then, go to 'Apps', review the list, and select any apps you don't use—choose 'Delete' to remove them entirely and free up more space. IF THAT DIDN'T WORK Perform a memory optimization. Hold the Settings button on the remote for 5+ seconds until a secret menu appears in the top-right. Select 'Memory Optimizer' and run it. This forcibly closes background processes. HEADS UP Avoid using too many live widgets on the home screen (like the weather or sports ticker). Each one consumes RAM and slows down the interface. Edit your home screen to keep it minimal.

Question 3

the sound from the tv speakers cuts out for a second every few minutes, it's super annoying, happens on all inputs and apps.

Accepted Answer

DIAGNOSIS This is almost always a software or audio processing glitch, not faulty hardware. FIX Perform a full audio reset. Go to All Settings > Sound > Advanced Settings > Reset Sound. Confirm. Then, immediately disable any post-processing: set 'Sound Mode' to 'Standard' and turn OFF 'Auto Volume', 'Surround Sound', and 'Clear Voice Pro'. IF THAT DIDN'T WORK Check for a firmware update. Go to All Settings > General > System > Software Update > Check Update Now. Install any available update, as LG frequently patches audio bugs. After updating, power cycle the TV (unplug for 1 minute). HEADS UP If you're passing audio to a sound system via HDMI ARC, the problem might be there. Switch the TV sound output temporarily to 'TV Speaker' to isolate the issue. If the cutouts stop, the problem is your ARC connection or soundbar.

Question 4

my lg tv keeps turning itself on in the middle of the night, it's creepy and wasting power.

Accepted Answer

DIAGNOSIS An external device connected via HDMI-CEC is sending a wake-up signal, or a scheduled function is enabled. FIX First, disable HDMI-CEC. Go to All Settings > Connection > Device Connection Settings > HDMI Settings and turn 'SIMPLINK (HDMI-CEC)' OFF. This stops other devices (like a game console or soundbar) from turning the TV on. IF THAT DIDN'T WORK Check for automatic updates or timers. Go to All Settings > General > System > Time & Timer. Turn OFF 'Auto Power On' and 'Quick Start+'. Also, in All Settings > General > System > Additional Settings > Power & Energy, turn OFF 'Auto Power Off'. HEADS UP If you use the LG ThinQ app or have the TV on a smart home schedule (like Google Home routines), check those external apps for any 'turn on' commands you may have set accidentally.

Question 5

the screen on my 70UQ7590PUB looks super dim and washed out no matter what picture setting i choose.

Accepted Answer

DIAGNOSIS The TV's energy-saving or ambient light sensor is aggressively throttling the backlight brightness. FIX Press the Settings button, go to All Settings > Picture > Advanced Settings > Energy Saving. Set it to 'Off'. Immediately check your picture mode (like Standard or Vivid) and manually adjust the 'Brightness' and 'Backlight' (or 'OLED Pixel Brightness') sliders up. IF THAT DIDN'T WORK Check if 'Eye Comfort Mode' is on. Go to All Settings > Picture > Additional Settings > Eye Comfort Mode and disable it. This feature adds a warm, dim filter that can't be adjusted. HEADS UP The 'Filmmaker Mode' and certain ISF presets are calibrated for accuracy in dark rooms, not brightness. Avoid them if you want a punchy, bright image for daytime viewing.

Question 6

how do i get the magic remote to actually control my cable box volume and power? it worked once then stopped.

Accepted Answer

DIAGNOSIS The universal control settings got out of sync. The TV needs to relearn the infrared codes for your specific device. FIX Press the Settings button on the remote. Go to All Settings > Connection > Device Connection Settings > Universal Control Settings. Select 'Set Top Box' (or your device type). Choose 'Auto Set' and follow the on-screen prompts—it will test power and volume commands until it finds a match. Select 'Yes' when it works. IF THAT DIDN'T WORK The cable box might use a non-standard IR code. In the same Universal Control Settings menu, choose 'Manual Set' and try selecting different brand codes for your provider (e.g., try Xfinity, then Comcast, then Arris). HEADS UP The magic remote uses a combination of Bluetooth (for pointer) and IR (for device control). Make sure you're pointing the remote at the cable box when testing volume/power, as the IR blaster is at the remote's tip.

Question 7

this LG tv is connected to wifi but all the built-in apps like Netflix keep buffering or saying network error, my internet is fine.

Accepted Answer

DIAGNOSIS The TV's wireless connection is likely weak or unstable. The internal antenna isn't great, especially if your router is far away or through walls. FIX The fastest solution is to switch to a wired Ethernet connection. Plug a standard Ethernet cable from your router into the LAN port on the back of the TV. This immediately stabilizes the connection and often boosts speed for 4K streaming. IF THAT DIDN'T WORK You may need to clear the app cache. Go to All Settings > General > System > Storage > Internal Storage. Select 'Cached Data' and confirm clearing it. Then, go to Apps, select the problematic app (e.g., Netflix), and choose 'Clear Data'. You'll have to sign in again, but this often fixes corrupted app data. HEADS UP Avoid using the TV's 'Quick Start+' (always-on) feature if you have connectivity issues. Go to All Settings > General > System > Additional Settings > Quick Start+ and turn it OFF. A full power cycle can resolve lingering network glitches.

Question 8

my new LG 70UQ7590PUB keeps saying ‘no signal’ even though everything is plugged in and on, what am i missing?

Accepted Answer

DIAGNOSIS The TV is on the wrong input source. This is the most common setup hiccup, especially with multiple devices. FIX Grab the remote and press the Input button. A menu will pop up on screen. Cycle through the options (like HDMI 1, HDMI 2, ANT/CABLE) using the directional pad. The correct one will be the one your cable box, game console, or streaming stick is physically plugged into on the back of the TV. Press OK to select it. IF THAT DIDN'T WORK The HDMI cable itself might be faulty or not fully seated. Unplug the HDMI cable from both the TV and your device, then firmly reconnect it. Try a different HDMI port on the TV if you have one free. HEADS UP If you're using an external device like a soundbar via HDMI ARC (usually HDMI 2), make sure that device is powered on before turning on the TV, or the TV might not detect it properly.

LG 70 inch 70UQ7590PUB 4K Smart TV

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