Compatibility & scope
Based on Hisense's English e-manual whose PDF metadata title is E-Manual MT9603 VIDAA U9 NA/SA (the manual prints no date or version; the PDF was created in 2025), downloaded from Hisense Chile (hisense.cl), where it is hosted for the 58Q6QV, 40Q4SV and 50A4NV. These are model codes from Hisense Chile's site; equivalent models elsewhere and other TV brands that run VIDAA may differ. The manual says each wake setting may not apply to some models, countries or regions and may raise standby energy use; it gives no figures. It describes waking the TV by casting from a phone app that supports casting, and from Alexa or Google Home devices. It does not list which phone apps work, and it does not say which wake setting, if any, the VIDAA mobile app's power-on feature uses. Documentation reviewed; no TV hardware tested.
In this guide
Pick the wake setting that matches the TV’s connection
To let a phone switch a VIDAA TV on by casting to it, turn on a wake setting under Settings → Connection → Network: Wake on Wireless Network if the TV uses Wi-Fi, or Wake on LAN if it’s connected with a network cable. On TVs that match Hisense’s 2025 U9 e-manual, the TV can then switch on from standby when you cast to it from a phone app that supports casting. The same menu has a third setting, Wake on Cast, which the manual describes in almost the same words: it turns the TV on when you cast from a mobile device. The manual doesn’t say whether you need Wake on Cast as well, so if the TV doesn’t wake with the first setting, turn Wake on Cast on too.
The TV has to be in standby, not unplugged, and the manual says each setting may not exist on some models.
| Setting | TV connection | What the manual says wakes the TV |
|---|---|---|
| Wake on Wireless Network | Wi-Fi | A phone app that supports casting, on the same network, pushing content to the TV |
| Wake on LAN | Network cable (Ethernet) | The same, with the TV on a wired connection |
| Wake on Cast | Not stated | Casting to the TV from a mobile device (the manual doesn’t say how it relates to the other two) |
These settings are about casting. The manual doesn’t say that a phone remote app’s power button uses them; the VIDAA app is covered below.
Before you start
- The TV must be connected to your network, by Wi-Fi or by cable.
- Your phone must be on the same network as the TV. The manual makes this a condition for Wake on Wireless Network and Wake on LAN.
- You need working TV controls to turn the setting on.
- Expect higher power use: Hisense says each setting may increase energy consumption, without giving figures.
Turn on network wake
- Press Home on the remote and open Settings (the gear icon).
- Open Connection, then Network.
- Turn on the setting that matches your connection:
- Wake on Wireless Network for Wi-Fi
- Wake on LAN for a network cable
- Turn the TV off with the remote’s power button so it goes into standby.
- On your phone, start casting from an app that supports casting to TVs and choose your TV from its list.
The TV should switch on and show what you cast. The manual doesn’t describe any message or delay, so give it a moment. If it stays off, go back to the same menu, turn on Wake on Cast as well and try again.
To find your TV in the phone’s list more easily, give it a name under Settings → Connection → TV Name (up to 18 characters).
Turn the TV on with Alexa or Google Home
The manual covers this case too. To turn the TV on with an Alexa-enabled device (such as an Echo) or a Google Home device (such as a Nest Hub), turn on both Wake on LAN and Wake on Wireless Network, and keep the TV and the smart speaker on the same network. Setting up the voice service itself is a separate step in the TV’s voice settings.
What about the VIDAA phone app?
The U9 e-manual lists turning the TV on or off among the things the VIDAA mobile app can do. To connect the app, it says you must:
- agree to the end user licence, disclaimer and privacy policies on the TV (Settings → Support → Disclaimer and Privacy → Data Sharing, Privacy and EULA)
- keep the phone and TV on the same network
- turn on Settings → Connection → Multimedia Device Connection → Content Sharing
It doesn’t say whether the app can switch the TV on from standby, or which wake setting that needs. If the app can’t turn your TV on, that’s the gap. Turning on the wake setting for your connection is a reasonable thing to try, but the manual doesn’t promise it will work. For finding and connecting the app, see the VIDAA mobile app guide.
If the TV doesn’t switch on
- The setting isn’t in the menu: your model doesn’t offer it. The manual says these functions aren’t available on every model, country or region.
- Wrong setting for the connection: Wake on Wireless Network only applies over Wi-Fi, and Wake on LAN only over a cable. If you’re not sure how the TV is connected, check whether a network cable is plugged into the back of the TV.
- Different networks: check that the phone is connected to the same home network as the TV (by Wi-Fi, not mobile data).
- TV not on the network: while the TV is on, run Settings → Connection → Network → Internet Connection → Connection Test.
- TV unplugged or switched off at the wall: the wake settings work from standby, so the TV needs power.
- The app doesn’t cast: the manual describes waking with apps that support casting. For any other app, check that app’s own help for what it needs.
If none of this works, note the TV model, the setting you turned on and the app you used, and contact Hisense support for your country.
Common questions
Does this work while the TV is unplugged?
No. The manual describes switching the TV on from standby, so it has to be plugged in and switched off with the remote.
Should I leave these settings on?
Only if you use them. Hisense notes that each one may increase energy consumption.
Sources & scope
Pages printed 11, 34–35, 45, 62–63 (PDF 12, 35–36, 46, 63–64)
View sourcePDF page = printed page + 1. Consulted: Network → Turn on the TV through the Internet (Wake on Cast, Wake on Wireless Network, Wake on LAN), Edit TV Name and Internet Connection; the voice-service note about turning the TV on with Alexa or Google Home devices; Using the Mobile App; Content Sharing. Rendered PDF 36 and 64 checked. The same wake settings are in the hisense.cl e-manuals hosted as User-Manual-40Q4SV.pdf (PDF 61–62) and User-Manual-50A4NV.pdf (PDF 64–65). The manual's front matter lists no models, date or VIDAA version: model names come from the hosted file names, and VIDAA U9 NA/SA and 2025 from the PDF metadata title and creation date (May 2025; uploaded to hisense.cl in November 2025).
These instructions are based on manufacturer documentation. They have not been device-tested for this guide.
Based on Hisense's English e-manual whose PDF metadata title is E-Manual MT9603 VIDAA U9 NA/SA (the manual prints no date or version; the PDF was created in 2025), downloaded from Hisense Chile (hisense.cl), where it is hosted for the 58Q6QV, 40Q4SV and 50A4NV. These are model codes from Hisense Chile's site; equivalent models elsewhere and other TV brands that run VIDAA may differ. The manual says each wake setting may not apply to some models, countries or regions and may raise standby energy use; it gives no figures. It describes waking the TV by casting from a phone app that supports casting, and from Alexa or Google Home devices. It does not list which phone apps work, and it does not say which wake setting, if any, the VIDAA mobile app's power-on feature uses. Documentation reviewed; no TV hardware tested.