TV repair technician helping fix LG TV boot loop issues

Steve H.

Expert ★★★★★ 27,853 satisfied customers

Specialities: LG smart TVs & webOS, boot loops and logo freeze, power & main boards, HDMI-CEC issues, firmware resets, streaming apps

LG TV stuck on logo screen or boot loop — webOS crash, power and firmware issues

Technician avatar Technician
Hey! We’ll track down why your LG TV is stuck on the logo or trapped in a boot loop and see if we can get it to start normally again without a shop visit. A few quick questions so we don’t guess:
• Exact LG TV model (e.g. LG OLED, NanoCell, UHD, webOS model code on the label)?
• What exactly happens: stays frozen on the LG logo, logo appears then the TV turns off and on again, or it briefly shows webOS then reboots?
• Any clicking noises or blinking standby light from the TV when it restarts?
• Are you using a power strip, surge protector, soundbar or game console on HDMI ARC/eARC?
• Did the problem start after a firmware update, power outage, or moving the TV?
The more detail we have, the easier it is to fix an LG TV boot loop or logo freeze instead of just unplugging it randomly.
Customer
It’s a 55″ LG smart TV, I think a webOS model from a few years ago. When I turn it on, it shows the LG logo, then goes black and comes back to the logo again. It just keeps rebooting in a loop. I can’t reach any menu, no channels, nothing. It started after a power outage last night, so I think the TV got stuck in a boot loop.
Technician avatar Technician
Got it — classic case of an LG TV stuck on the logo after a power cut.
Power outages or voltage spikes can do a few things:
• Corrupt webOS files so the TV tries to start, reaches the logo, then crashes and reboots.
• Confuse HDMI-CEC (Simplink), where a console or streaming box keeps sending turn-on signals and triggers a reboot loop.
• In worse cases, stress the power supply board or main board, causing endless restarting.

We’ll start with safe at-home steps:
1) Do a deep power reset to clear any static or stuck states.
2) Isolate the TV from all external devices and test if the boot loop stops.
3) If we can get into webOS, we’ll adjust power settings and run a reset.
4) If it still endlessly restarts at the LG logo, we’ll talk about firmware via USB and when it’s likely a main board repair issue.
Customer
Right now it never gets to the menu, it just shows the logo and restarts. I have a soundbar on HDMI ARC and a PlayStation plugged in, plus it’s on a surge protector. I tried unplugging it from the wall for a minute, but the LG TV still loops on the logo.
Technician avatar Technician
Let’s do a deeper reset and isolate everything — that alone stops a lot of LG TV logo boot loops.
Step 1 — Full power drain
1) Turn the TV off if you can, then unplug it from the wall (not just from the surge strip).
2) With it unplugged, press and hold the power button on the TV itself (not the remote) for about 30–60 seconds. This discharges the power supply and helps clear a stuck boot cycle.
3) Leave the TV unplugged for at least 5–10 minutes.

Step 2 — Remove all accessories
• Unplug every HDMI device (soundbar, consoles, streaming sticks, cable box), plus any USB drives or antenna.
• Plug the TV directly into a known-good wall outlet (no surge strip) just for this test.
• Turn it back on and watch: does it still reboot at the LG logo, or now stay on a bit longer?
If the LG TV is still stuck on the logo with nothing connected, we’ll assume it’s more of a firmware or main-board issue and try getting into webOS long enough to run a reset.
Customer
I tried that. After leaving it unplugged for a while and holding the power button, it actually stayed on longer once, showed the webOS animation and even the home screen for a few seconds, but then it froze and restarted back to the logo. Now it’s back to looping again. Still nothing plugged in except power.
Technician avatar Technician
That’s actually a useful clue: the TV can almost load webOS, then crashes — very typical for a webOS software fault or borderline main board.
While it’s briefly on, we’ll try to change a couple of settings that commonly cause LG smart TVs to keep restarting.
Step 3 — Race into Settings if you can
1) Turn the TV on and, as soon as you see the LG logo disappear, spam the Settings or gear button on the remote to open the menu.
2) If you reach Settings → go to General → Devices & TV Management / Additional Settings (wording varies by webOS version).
3) Turn Quick Start+ and any “Fast Boot” or “SIMPLINK (HDMI-CEC)” options Off. These power-saving features sometimes trigger LG boot loops after a bad shutdown.
4) If it stays on long enough, go to Reset to Initial Settings (factory reset) and run it. This can fix an LG TV stuck on the logo screen when it’s caused by a corrupted app or setting.

Don’t worry if you can’t reach the menu; if it crashes too fast, we’ll try a more direct reset method next.
Customer
I can’t get into Settings at all. It either stays on the LG logo or jumps straight back into the boot loop before any menu appears. Is there some kind of hidden reset or button combo for an LG TV stuck on logo?
Technician avatar Technician
Some LG models do respond to button combos or forced resets, and they’re worth trying before hardware repair.
Step 4 — Try a manual front-panel reset
• With the TV plugged in but off, press and hold Power on the TV (not the remote) for 10–15 seconds, then release and turn it on normally.
• On some models, holding Volume-Down + Power on the TV for 10–15 seconds forces a deeper reset. If that combo exists for your model, the screen may flash and reboot once more, then try to start cleanly.

Step 5 — Firmware recovery via USB (if supported)
If we know your exact model, we can sometimes:
1) Download the latest firmware for that model from the LG support website onto a USB drive.
2) Insert the USB into the TV while it’s off, then turn it on and see if it offers a firmware update prompt before the logo boot loop starts.
This doesn’t work on every LG TV, but when it does, it can fix an LG smart TV stuck on the logo after a failed update. If the TV still reboots instantly with no sign of life beyond the logo, it starts to look more like a main-board or power-board problem rather than just software.
Customer
It’s an older 55″ LG UHD TV, and I don’t see any special reset happening from the buttons. It still keeps restarting on the LG screen. No apps ever load. Does that mean the main board is bad? I’d prefer to avoid a big repair bill if there’s anything else I can try at home.
Technician avatar Technician
An LG TV that constantly restarts at the logo, even after full power resets and with nothing connected, is often a main-board (logic) or, less commonly, power-board issue. But there are still a couple of safe checks you can do:
Step 6 — Look and listen for hardware warning signs
• Watch the front standby LED: does it flash in a repeated pattern when the TV tries to boot?
• Listen near the back vents for rapid clicking or buzzing that changes as it restarts.
• Very gently, with the TV unplugged, you can remove the back cover only if you’re comfortable and visually check for any obviously burned areas or swollen capacitors. Don’t touch board components or heatsinks while it’s powered.

If there are no dramatic burn marks but the LG TV is stuck on the logo boot loop every single time, that’s a strong hint the main board firmware or hardware has failed. At that point, repair options are usually:
• Main-board replacement with a compatible board for your exact model.
• In some regions, LG or a local shop will reflash the main board firmware.
We can also compare repair cost vs. replacement price if you’d like.
Customer
If I do manage to get it to start once and run a factory reset, will that wipe all my apps and settings? And is there anything I can change so it’s less likely to get stuck in a boot loop again if I keep the TV?
Technician avatar Technician
Great questions.
What a factory reset does on an LG smart TV
• “Reset to Initial Settings” will erase Wi-Fi details, picture/sound presets, channel scans and app sign-ins.
• It doesn’t normally delete the LG account itself, but you’ll need to sign back into streaming apps and redo your picture settings.

How to reduce the chance of another LG logo boot loop
• Keep the TV on a good surge protector to reduce damage from power cuts and spikes.
• Turn off Quick Start+ or fast-boot modes once the TV is stable; they can occasionally make webOS harder to recover after a crash.
• Avoid yanking the power while webOS is updating apps or the system firmware.
• Every so often, power the TV off via remote and unplug for a minute — a simple way to clear minor glitches so they don’t grow into a boot loop problem.
Those habits won’t fix a failing board, but they do make LG webOS TV boot issues a lot less common.
Customer
If it turns out the main board is bad, is it even worth fixing an older LG TV that’s stuck on the logo screen? I don’t really want to spend as much as a new TV.
Technician avatar Technician
Totally fair concern.
For an LG TV that’s in a constant boot loop:
• Out-of-warranty shop repairs for a main board can range from “reasonable” to “almost as much as a budget new TV” depending on your size/model and local labour.
• On mid-range and larger LG OLED or NanoCell sets, a main-board swap can still be worth it if the panel is in great shape.
• For smaller or very old models, it may be cheaper long-term to replace the TV, especially if power-supply parts are limited.

If you tell us the model and rough age in chat, we can quickly estimate whether a boot loop repair makes sense in your case or if you’re better off putting that money towards a replacement.
Customer
After the longer unplug, power drain and disconnecting everything, it actually booted properly once and stayed on for half an hour. I turned off Quick Start+ and Simplink, and for now it’s not looping. I’ll see if it holds, but at least I know what to try next if the LG TV boot loop comes back. Thanks!
Technician avatar Technician
Summary: when an LG TV is stuck on the logo or trapped in a boot loop, start with a deep power reset and remove all HDMI/USB devices, then plug it directly into the wall. If you can reach webOS, disable Quick Start+ and CEC and run a factory reset. If the TV still restarts at the logo every time, the main board or power board may need repair or replacement. Not sure which step is safe for your model? Open the chat and an expert will walk you through it live.

Quick answer: the accepted fix

Accepted fix when an LG TV is stuck on the logo screen or keeps rebooting: unplug the TV from the wall, hold the power button on the TV for 30–60 seconds, leave it unplugged for 5–10 minutes, then reconnect it directly to a wall outlet with all HDMI and USB devices removed. If it finally boots into webOS, turn off Quick Start+ and CEC/Simplink and run “Reset to Initial Settings”. If the LG TV boot loop continues even after these steps, it likely needs main-board or power-board service.

Why LG TVs get stuck on the logo or in a boot loop

Most LG smart TV boot loop problems come down to three things: a software crash in webOS, power issues, or failing hardware. Power cuts or bad updates can corrupt the operating system so the TV reaches the LG logo then reboots over and over. HDMI-CEC loops from consoles or soundbars can also cause LG TVs to restart repeatedly if the control signals get stuck. In more serious cases, worn components on the main board or power supply mean the TV can’t stay stable once it draws full power, so it shuts down and tries again, creating an endless LG logo boot loop.

How to test if your LG TV boot loop is really fixed

After any reset, let your LG TV run for at least 20–30 minutes. Switch between live TV, apps like Netflix or YouTube, and HDMI sources to make sure it no longer restarts at the logo when you change inputs. Power the TV off with the remote, wait a minute, and turn it back on several times. If it consistently loads webOS without showing an endless logo, your LG TV boot loop fix is probably solid. If the rebooting only happens with a specific console, soundbar or streaming stick attached, that device or its HDMI-CEC settings are likely triggering the problem rather than the TV itself.

LG TV stuck on logo — quick troubleshooting tips

Most cases are fixed by a proper power reset and cleaning up webOS settings.

Quick path: unplug the TV from the wall, hold the physical power button to drain residual power, then restart with nothing on HDMI or USB. If the LG TV no longer boot loops, disable Quick Start+ and CEC and run a factory reset from Settings → General. Keep the TV on a surge protector and avoid interrupting firmware updates to reduce the risk of another LG logo freeze. If it still reboots at the logo with a blank input list, it’s time to get a main-board or power-board diagnosis from a professional.

Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your LG TV model, age and symptoms, please consult a verified expert on Whizz-Tech before making decisions.

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FAQ

Why is my LG TV stuck on the logo screen or keeps rebooting?

An LG TV stuck on the logo is usually caused by a webOS software crash, power spike or failing main board. Start with a full power reset and remove all HDMI/USB devices. If the TV still restarts at the LG logo with nothing attached, it’s likely a corrupted system or hardware fault that may need factory reset, firmware recovery or board repair.

Can I fix an LG TV boot loop at home?

Many LG TV boot loops can be solved at home by unplugging the TV, draining power with the physical power button, restarting it on a direct wall outlet, then disabling Quick Start+ and CEC and running a factory reset if you can reach the menus. If these steps don’t change the behaviour, the next stage is professional diagnosis of the main and power boards.

Will a factory reset delete apps and settings on my LG smart TV?

Yes. “Reset to Initial Settings” returns your LG smart TV to its out-of-box state. Picture and sound settings, Wi-Fi details, channel scans and app logins are wiped, and you’ll need to sign back into streaming services. It won’t normally remove your LG account itself, and it’s often the easiest way to clear a software issue that caused a logo boot loop.

When should I call an LG TV technician about a boot loop?

If your LG TV is still stuck in a logo boot loop after a deep power reset, testing a different outlet, removing accessories and trying a factory reset or firmware update, it’s time to call a technician. Persistent boot cycles with no menu access often point to a failing main board or power supply that requires proper tools and parts to repair safely.

Sources

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