Your LG OLED sometimes does not turn on: sometimes it starts at once, sometimes the screen stays dark. A test in the settings shows whether the Quick Start+ feature is involved.
The test is free. Changing the setting takes a few minutes, the observation a few days. You only need the remote.
In short
Quick Start+ (also called Q-Start+) puts the TV into standby when you switch it off instead of shutting it down. It then starts faster later.
A customer reported the same fault only with Quick Start switched on. Without Quick Start her TV started reliably, no matter how long it had been on or off. This is a finding from our workshop, not a manufacturer statement.
What Quick Start+ does
According to LG support, the feature puts the TV into standby when you turn it off so that it can turn on quickly later. LG notes three points:
- The TV starts faster.
- Standby power consumption may increase.
- The feature is only available on certain models.
How to switch Quick Start+ off
1. Press the settings button on the remote and choose All Settings.
2. Open the menu path for your webOS version and set Quick Start+ to Off. If the entry does not exist on your model, your model does not have the feature. The names are from LG's English menus:
- webOS 22 and webOS 6.0 (2022 and 2021 models): General → Devices → TV Management → Quick Start+ → Off
- webOS 5.0 and webOS 4.5 (2019 models): General → Additional Settings → Q-Start+ → Off
- webOS 4.0 and webOS 3.5 (2018 and 2017 models): General → Q-Start+ → Off
Your test: first with, then without Quick Start
You only need patience, no tools:
1. Write down when the TV fails to turn on: after a short break, overnight or after long viewing.
2. Switch Quick Start+ off and unplug the TV from power for a moment.
3. Use the TV normally for several days. Repeat the situations in which it failed before.
4. Check whether it now starts every time. The first start takes a little longer without Quick Start. That is normal.
5. Then switch Quick Start+ back on as a test and check whether the fault returns.
How to read the result
The TV starts reliably without Quick Start but not with it: Leave Quick Start+ switched off. Our assessment: with Quick Start+ the TV never shuts down completely. If the standby power supply is unstable, wake-up fails. This can point to components that are wearing out on the power board or the mainboard. Have the boards checked on the device.
The fault remains without Quick Start: Have the power board checked. Background: LG OLED will not turn on and mainboard or power board.
If the TV shows nothing at all, read standby light off. If it clicks while switched off, read clicks in standby.
Safety notice
Mains voltage is lethal. The test only uses the menu and the remote. Do not open the TV and do not take measurements while it is powered. If unsure, unplug it and ask us.
Options at AmparioWeb
If the fault remains, or the TV only starts reliably without Quick Start, have the boards checked. AmparioWeb offers:
- Tested replacement boards: see parts, find your board number.
- Fixed-price repair: request a repair.
- Purchase of defective boards: sell a defective board.
Frequently asked questions
- What is Quick Start+ on an LG OLED?
- According to LG support it puts the TV into standby when switched off so it turns on faster later. Standby power consumption may increase.
- Can Quick Start+ make my TV fail to turn on?
- LG does not name it as a cause. One customer reported the fault only with it on. Switch the feature off and watch for a few days.
- Is the TV broken if it only starts without Quick Start?
- Not necessarily, but it can point to components that are wearing out. A check on the device confirms it. See mainboard or power board.
- Why does the TV start more slowly without Quick Start?
- The TV then shuts down fully and starts completely fresh each time. LG says Quick Start+ shortens the power-on time.
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Power boards for LG OLED — tested under load, 12-month warranty.
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