Troubleshooting
Factory reset a TCL Google TV
Reset a TCL Google TV to its factory settings from System → About → Reset, what the password or PIN prompt means, and what to do when the Welcome screen appears.
TV GUIDES
Troubleshooting
A clear next step when the picture, sound, or connection is not quite right.
19 guidesClear steps. Sources included.
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Troubleshooting
LG TV not responding to the remote? Checks for 2023–2025 webOS TVs
Work out why a 2023–2025 LG webOS TV ignores its remote: check the standby light and the TV's own button, the batteries, a soundbar blocking the receiver and set-top box remotes.
Troubleshooting
LG TV picture but no sound: checks for 2023–2025 webOS models
Find out why a 2023–2025 LG webOS TV shows a picture but plays no sound: run LG's Sound Self-diagnosis, check the set-top box volume, switch Sound Out back to the TV speakers and fix the audio language.
Troubleshooting
LG TV turns off by itself? Timers and auto-off settings (2023–2025 webOS)
Find which timer or auto-off setting is switching off a 2023–2025 LG webOS TV: Sleep Timer, Power Off Timer, the two Auto Power Off settings, no signal and set-top box power sync.
Troubleshooting
LG TV won't connect to Wi-Fi: network checks for 2023–2025 webOS models
Get a 2023–2025 LG webOS TV back online: reconnect through Wi-Fi Connection, turn off Quick Start+, test with a phone hotspot, and read the TV, Gateway and DNS markers on LG's network status screen.
Troubleshooting
Samsung TV has a picture but no sound from its speakers
Check where your Samsung TV is sending its sound, then work through Samsung's checks for the volume, headphone jack, Sound Test and the connected device. Paths for each menu layout.
Troubleshooting
Samsung TV keeps dimming or flickering? Turn off energy saving
Find the energy-saving and auto-brightness settings that make a Samsung TV darken or flicker on its own, turn them off one at a time, and know when the dimming is normal. Paths for each menu layout.
Troubleshooting
Samsung TV no picture from HDMI: blank screen, Mode Not Supported or no HDR
What to check when a console, streaming stick, set-top box or PC shows nothing on a Samsung TV, shows "Mode Not Supported", or loses HDR: the input, the cable, HDMI Troubleshooting and Input Signal Plus. Paths for each menu layout.
Troubleshooting
Samsung TV Self Diagnosis: run the picture, sound, HDMI, signal and remote tests
Where to find Self Diagnosis on a Samsung TV for each menu layout, which built-in tests your TV has (Picture or Video Test, Sound Test, HDMI checks, Signal Information or Broadcast Signal, Remote Control), what each result tells you and where to go next.
Troubleshooting
Samsung TV turns itself off, or won't turn fully off (The Frame)
Find the timer and power-saving setting that switches a Samsung TV off on its own, stop The Frame going to Art mode instead of turning off, and fix settings that reset every few minutes. Paths for each menu layout.
Troubleshooting
VIDAA TV turns off by itself? Sleep, Auto Sleep and No-Signal timers
Find out why a VIDAA TV switches itself off: check the power cord, the Sleep Timer, Power Off Timer, Auto Sleep and Auto Standby with No Signal timers, and the HDMI CEC link, using Hisense's 2025 U9 e-manual.
Troubleshooting
VIDAA TV won't connect to Wi-Fi: Self Diagnosis and network checks
Run the VIDAA TV's Network Connection Test, reconnect to Wi-Fi from Network Configuration, and work through Hisense's router, distance and interference checks from the 2025 U9 e-manual, with a wired-connection branch.
Troubleshooting
Factory reset a 2023–2025 LG webOS TV with Reset to Initial Settings
Use Reset to Initial Settings on a 2023–2025 LG webOS TV, choose whether to keep network settings, and reset a forgotten Safety password first.
Troubleshooting
Factory reset a Samsung TV: menu path by model year, PIN and lighter resets
Find the factory reset option for your Samsung TV's year, get past the PIN prompt, and decide whether Reset Smart Hub or Reset Picture is enough.
Troubleshooting
Factory reset a VIDAA TV: Reset to Factory Default and the PIN
Where Reset to Factory Default is in a VIDAA U6 or U9 Settings menu, what the PIN prompt means, and the restart and smaller reset options to try first.
Troubleshooting
LG TV doesn't detect a USB drive? Hub and power checks (2014 LB-series)
Connect the drive directly instead of through a hub, add external power if it needs it, and find it in SmartShare on a 2014 LG LB-series TV.
Troubleshooting
LG TV shows “No signal” from a PC (2014 LB-series)
Select the right input, try LG's off/on, reconnect and restart sequence, fix a noisy PC picture, and add the audio cable a DVI connection needs on 2014 LG LB-series TVs.
Troubleshooting
LG TV turns off by itself? Timer and no-signal checks (2014 LB-series)
Check the 15-minute no-signal shutdown and the Automatic Standby, Sleep Timer and Timer Power Off settings on a 2014 LG LB-series TV before contacting support.
Troubleshooting
Samsung TV won’t connect to Wi-Fi? Work through these checks
Run Samsung's connection test, check the Wi-Fi switch and password, restart the router and TV, and tell a Wi-Fi fault from an internet outage, with menu paths for 2020–2026 TVs.