Compatibility & scope
Based on three editions of LG's English (UK/EU) webOS TV user guide (w23_mr3_eu03, w24_mr2_eu03, w25_e02), which LG's UK support pages link for the 2023 C3, 2024 C4 and 2025 C5 OLED TVs. All three describe the same setting and conditions. LG doesn't name the apps that support the feature, explain the difference between the standard and Networked Standby Mode options, or give standby power figures, and it doesn't describe how the feature interacts with Always Ready or Quick Start+. Documentation reviewed; no TV or phone tested for this article.
In this guide
Where TV On With Mobile is and what it does
On a 2023–2025 LG webOS TV, the setting that lets a phone app switch the TV on is TV On With Mobile, under Settings (gear) → All Settings → General → External Devices → TV On With Mobile. When its Wi-Fi or Bluetooth option is On, LG says the TV can be turned on with an app that supports TV On With Mobile.
LG’s guides don’t name those apps or show any app’s steps, so this page covers the TV side: where the setting is, which option to choose and what LG says the TV and phone need. Check your remote app’s own information to see whether it can wake an LG TV.
Wi-Fi or Bluetooth
LG’s 2023–2025 guides name two options, each written with an alternative name:
- Turn on via Wi-Fi / Turn on via Wi-Fi(Networked Standby Mode): wakes the TV over your network, from an app that supports the feature.
- Turn on via Bluetooth / Turn on via Bluetooth(Networked Standby Mode): LG says this works only on some smartphones.
Your TV may show either name for each option. The guides don’t explain what the Networked Standby Mode wording changes, so use whichever version your TV lists.
Turn the setting on
- Press the Settings (gear) button on the remote. You can also press and hold it to open All Settings directly.
- Select All Settings (the gear icon on screen), then General → External Devices → TV On With Mobile.
- Set Turn on via Wi-Fi (or its Networked Standby Mode version) to On. Turn on the Bluetooth option too if your phone and app use Bluetooth.
- Make sure the TV and the phone are connected to the same network.
- Connect your app to the TV by following the app’s own instructions. LG says only that, when connecting for the first time, the phone or other device you’ll use must be ready to connect.
- To check that it works, turn the TV off with the remote and try turning it on from the app. LG doesn’t describe a test; this is simply the quickest way to see whether the setting and the app work together.
The setting is in the TV’s menus, so you need the remote, or another way to reach those menus, to turn it on.
What the TV and phone need
LG lists these conditions in all three guides:
- The TV is connected to a network, and the phone is on the same network.
- The TV stays plugged in. If it’s switched off at the wall, it can’t wake up.
- The app supports the feature. The Wi-Fi option only works from an app that supports it.
- The phone supports Bluetooth wake-up if you use the Bluetooth option. LG says it works only on some smartphones.
- The TV model supports it. LG notes that some models don’t.
If the TV doesn’t turn on from the phone
Check the list above in order: the option is still On, the TV is plugged in, the phone is on the same network as the TV, and the app says it can wake an LG TV. If the Bluetooth option doesn’t work, your phone may not be one of the models LG says support it; use the Wi-Fi option instead if your app supports it.
LG’s guides don’t give further troubleshooting for this setting. If the app still can’t wake the TV, the app’s own support is the next place to look.
How it relates to other standby settings
LG describes each of these separately and doesn’t say how they affect one another:
- Always Ready (General → Always Ready) keeps a wallpaper, Hands-free Voice Control and Bluetooth sound available while the TV is off. See turning off Always Ready if your TV shows a wallpaper instead of switching off. LG doesn’t say whether TV On With Mobile depends on it.
- Quick Start+ (General → System → Additional Settings) keeps the TV in standby so it starts faster. LG says it can increase energy use.
- IP Control Settings (Support → IP Control Settings) is for an IP control device, such as a home-control system, that controls the TV over the network. It’s not part of the phone setup above.
Common questions
Does the LG ThinQ app support TV On With Mobile?
LG’s TV guides don’t say. They describe LG ThinQ for controlling a TV that is already connected, and TV On With Mobile for “an app that supports” it, without linking the two.
Does it use more power?
LG doesn’t give figures for this setting. It does warn that Always Ready and Quick Start+ can increase energy use.
Sources & scope
Linked from the LG UK support page for the 2025 OLED55C5ELB. Consulted: 6.12.4 TV On With Mobile, 6.5 Always Ready, 7.3 Learn More About Always Ready, 6.13.5 Quick Start+ and 6.15.8 IP Control Settings.
Linked from the LG UK support page for the 2024 OLED55C46LA. Consulted: Settings → External Devices → TV On With Mobile.
Linked from the LG UK support page for the 2023 OLED55C34LA. Consulted: Settings → External Devices → TV On With Mobile. Same options and conditions as 2024 and 2025.
These instructions are based on manufacturer documentation. They have not been device-tested for this guide.
Based on three editions of LG's English (UK/EU) webOS TV user guide (w23_mr3_eu03, w24_mr2_eu03, w25_e02), which LG's UK support pages link for the 2023 C3, 2024 C4 and 2025 C5 OLED TVs. All three describe the same setting and conditions. LG doesn't name the apps that support the feature, explain the difference between the standard and Networked Standby Mode options, or give standby power figures, and it doesn't describe how the feature interacts with Always Ready or Quick Start+. Documentation reviewed; no TV or phone tested for this article.