Question 1

my tv says 'no signal' on the right hdmi port but my playstation works fine on the other one

Accepted Answer

DIAGNOSIS This points to a problem with that specific HDMI port on the TV. It could be a software glitch with its EDID detection, a physical connection issue, or (less likely) a hardware failure of the port itself. FIX First, force a fresh handshake. With the TV on and set to the problematic HDMI input, unplug the HDMI cable from the TV, wait 10 seconds, and plug it back in firmly. Then, power cycle the device connected to it (console, streamer, etc.). If that fails, try a different HDMI cable on that specific port to rule out a cable/port combo issue. IF THAT DIDN'T WORK Go to Settings > System > Power > Restart (not just power off). This performs a soft reboot that can clear port detection errors. You can also try disabling 'HDMI Auto Game Mode' or 'HDMI 2.1 Mode' for that specific port in the TV's input settings, as sometimes the enhanced mode can cause compatibility problems. HEADS UP HDMI ports can get damaged from frequent plugging/unplugging. If only one port is dead and a restart doesn't help, you might be stuck using the other ports. It's a repair if under warranty.

Question 2

the audio keeps cutting out for a second every few minutes over hdmi arc to my soundbar, video is fine

Accepted Answer

DIAGNOSIS This is usually an HDMI-CEC/ARC handshake issue. The TV and soundbar are having a minor communication glitch over the HDMI cable, causing the audio stream to drop and reconnect. FIX First, try a different, high-speed HDMI cable that's certified for ARC/eARC. A cheap or old cable is often the culprit. Then, power cycle the whole chain: unplug the TV and soundbar from power for 2 minutes, plug the soundbar in first, let it boot, then plug in the TV. IF THAT DIDN'T WORK Go into the TV's audio settings. Set 'Digital Audio Out' to 'Dolby Digital' instead of 'Auto' or 'PCM'. This sends a more stable, compressed format that sometimes fixes the handshake. Also, in the system settings, try turning off 'Simplink (CEC)' entirely, though this will mean you lose control of the soundbar volume with the TV remote. HEADS UP If you're passing through audio from a game console or other device plugged into the TV, that adds another layer of complexity. Try plugging that device directly into the soundbar if possible, bypassing the TV's ARC port.

Question 3

how do i get rid of the 'live tv' button on the home screen or change the default input, it keeps going to antenna

Accepted Answer

DIAGNOSIS The Google TV interface has a 'Live' tab that's prominent and, by default, tries to tune antenna channels. If you don't use an antenna, it's just a dead button that defaults to a noisy screen. FIX You can't remove the button entirely, but you can change what happens when you press it. Go to Settings > Channels & Inputs > Live TV. Select 'Set up input' and you can change the source from 'Antenna' to an HDMI port (like your cable box or game console). Now pressing the Live button will switch to that chosen input instead. IF THAT DIDN'T WORK To change the input the TV starts on when you power up, go to Settings > System > Power > Power on behavior. You can set it to 'Last used input' or a specific HDMI port. This overrides the 'Live' tab default. HEADS UP The Google TV home screen layout is largely controlled by Google, not TCL. Those top row buttons (Live, Discover, etc.) are baked in and can't be rearranged or deleted like regular apps.

Question 4

the screen on my tcl has these weird dark patches or clouds in the corners when it's a dark scene, is this normal

Accepted Answer

DIAGNOSIS That's called 'backlight clouding' or 'DSE' (Dirty Screen Effect). It's a physical characteristic of the panel and backlight assembly, not a software bug. On budget-friendly LED TVs like this model, some degree of this is unfortunately common. FIX There's no software fix to eliminate it, but you can minimize its appearance. Go to Settings > Picture > Advanced Settings. Turn down the 'Backlight' setting (not brightness) for nighttime viewing. Also, try the 'Local Contrast' setting—sometimes setting it to 'High' can help even out the lighting, though it might crush shadow detail. IF THAT DIDN'T WORK If the patches are severe and look more like actual dark spots or blobs, you might have a defective panel or loose connections inside. This is a warranty claim. Take a photo of a solid gray test screen (search 'DSE test' on YouTube) to show support. HEADS UP This is most noticeable in a dark room on a black or dark gray screen. Some clouding is considered within manufacturing tolerance, so a warranty replacement isn't guaranteed unless it's really extreme.

Question 5

my tv randomly turns itself on in the middle of the night, it's creepy and waking me up

Accepted Answer

DIAGNOSIS This is almost always caused by a setting called 'Fast TV Start' (or a similar quick-resume feature) or by an HDMI-connected device sending a wake-up signal. FIX Go to Settings > System > Power > Fast TV Start and turn it OFF. This feature keeps the TV in a low-power state instead of fully off, and it can get glitchy. While you're there, also turn off 'CEC' (often called 'System Standby' or 'HDMI Control' in TCL menus) for all your HDMI ports. This stops your game console, cable box, or soundbar from accidentally turning the TV on. IF THAT DIDN'T WORK Check for a scheduled update or power-on timer. Go to Settings > System > Power > Power On Timer and make sure it's disabled. Also, in the 'Channel & Input' settings, ensure 'Auto Power On' isn't set to a specific input. HEADS UP If you have an Alexa or Google Home routine that involves the TV, double-check it. A stray voice command you don't hear could also be the culprit.

Question 6

the remote for my 55s546 is super laggy or just doesn't work unless i'm pointing it right at the tv

Accepted Answer

DIAGNOSIS The remote uses Bluetooth for voice commands and setup, but for basic navigation (d-pad, power, volume) it actually uses Infrared (IR), which requires a direct line of sight. Lag or non-response usually means the IR signal is blocked or the batteries are low. FIX First, replace the batteries with fresh ones. Weak batteries cause all kinds of weird remote behavior. Then, make sure nothing is physically blocking the IR sensor on the bottom front of the TV. Also, bright sunlight or certain types of LED room lighting can flood the IR receiver and interfere. IF THAT DIDN'T WORK Re-pair the remote's Bluetooth connection. Hold down the 'Back' and 'Home' buttons together for about 5 seconds until the status light flashes. This can resolve conflicts where the remote is stuck between IR and Bluetooth modes. HEADS UP If you use a soundbar or other device in front of the TV, it might be blocking the IR sensor. You can get a little IR repeater kit to solve that, or just rely on the TCL mobile app as a temporary remote.

Question 7

tcl google tv keeps saying 'low on storage' and apps are crashing, how do i clear space on this thing

Accepted Answer

DIAGNOSIS Yeah, this one's common. The internal storage on these models is pretty limited, and the OS and updates eat a big chunk of it. Once it's near full, everything gets sluggish and apps fail. FIX Go to Settings > Device Preferences > Storage. Clear the cache for individual apps (especially large streaming apps). Then, uninstall any apps you don't absolutely need—pre-installed 'channel' apps like Pluto or Tubi can often be removed. The biggest win is to manage automatic app updates: in the Google Play Store settings, turn off auto-update for apps. IF THAT DIDN'T WORK You need a more nuclear option. Go to Settings > Device Preferences > About > Factory reset. This wipes everything back to out-of-box, including all your logged-in accounts. It's a pain, but it's the only way to reclaim the maximum space. HEADS UP Adding external storage via USB doesn't help for installing most apps. The USB port is mainly for media playback. You're stuck managing the small internal pool.

Question 8

my tcl s546 tv just shows a black screen but the red standby light is on, sound works but no picture at all

Accepted Answer

DIAGNOSIS This is the classic 'backlight failure' or 'LED driver' issue on these models. The panel is getting a signal and the TV is technically on, but the lights behind the screen aren't illuminating. FIX Power cycle it completely. Unplug the TV from the wall, hold down the physical power button on the TV itself (if it has one) for 30 seconds, then plug it back in and try turning it on. If that doesn't work, you're likely looking at a hardware repair. For a TV under warranty, contact TCL. If not, a repair shop can often replace the LED strips or the power supply/backlight driver board—it's a known point of failure on this series. IF THAT DIDN'T WORK Try a factory reset. With the TV on (even with a black screen), press and hold the physical power button down for about 10-15 seconds until you hear it click off and then back on. This sometimes forces a reboot that a remote power cycle doesn't. HEADS UP If you see a very, very dim image you can only make out with a flashlight, that 100% confirms the backlights are dead. Don't waste time on more software fixes.

TCL 55 inch 55S546 S Class 4K Smart TV

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