Does the 75SJ8570 work with RemotApp?
Yes. The 75SJ8570 runs webOS 3.5, and RemotApp controls it over Wi-Fi with no setup beyond accepting the connection on the TV once.
- ✓Remote over Wi-Fi Yes
- ✓Infrared (Android with IR) Yes
- ✓Send photos and videos Yes
- ✓Turn on from the phone Yes
Protocol: LG webOS (SSAP 3000/3001)
What the code 75SJ8570 means
TV model codes follow the maker’s naming rules. Reading it piece by piece:
75Screen size in inchesSJ8570Series (2017 line) · NanoCell
75SJ8570 specifications
Display
| Display diagonal | 190.5 cm (75") |
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| HD type | 4K Ultra HD |
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| Display technology | LED |
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| Screen shape | Flat |
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| Native aspect ratio | 16:9 |
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| Motion interpolation technology | TruMotion |
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| Display refresh rates supported | 120 Hz |
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| Display number of colours | 1.073 billion colours |
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| Display resolution | 3840 x 2160 pixels |
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Smart TV
| Smart TV | Yes |
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| Internet TV | Yes |
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| Operating system installed | WebOS |
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| Operating system version | 3.5 |
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Audio
| Number of speakers | 2 |
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| RMS rated power | 60 W |
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| Built-in subwoofer | Yes |
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| Subwoofer RMS power | 20 W |
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Network
| Wi-Fi | Yes |
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| Wi-Fi standards | Wi-Fi 5 (802.11ac) |
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| Ethernet LAN | Yes |
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| Wi-Fi Direct | Yes |
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| Web browser | Yes |
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Design
| Product colour | Black, Silver |
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| VESA mounting | Yes |
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| Panel mounting interface | 600 x 400 mm |
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Performance
| Backlight dimming technology | Local Dimming |
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Ports & interfaces
| HDCP | Yes |
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| Ethernet LAN (RJ-45) ports | 1 |
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| Composite video in | 1 |
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| Digital audio optical out | 1 |
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| RS-232C ports | 1 |
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| RF ports quantity | 1 |
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| HDMI ports quantity | 4 |
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| Consumer Electronics Control (CEC) | SimpLink |
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Management features
Power
| Power consumption (standby) | 0.5 W |
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| AC input voltage | 100 - 240 V |
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| AC input frequency | 50 - 60 Hz |
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Sustainability
| Sustainability certificates | ENERGY STAR |
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Weight & dimensions
| Width (with stand) | 1676 mm |
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| Depth (with stand) | 330.2 mm |
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| Height (with stand) | 1016 mm |
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| Weight (with stand) | 50 kg |
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| Width (without stand) | 1676 mm |
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| Depth (without stand) | 51 mm |
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| Height (without stand) | 940 mm |
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| Weight (without stand) | 47 kg |
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Packaging data
| Package width | 1803.4 mm |
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| Package depth | 228.6 mm |
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| Package height | 1092.2 mm |
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| Package weight | 62 kg |
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| Package type | Box |
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Packaging content
| Remote control included | Yes |
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| Remote control type | Magic Remote |
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Other features
Technical data: Open Icecat and the manufacturer. Check the official page before buying; specs can vary by batch and market.
How to control the 75SJ8570 with your phone
- Connect your phone to the same Wi-Fi network as the TV. (Not the guest network.)
- Turn the TV on and install RemotApp on your phone.
- Open RemotApp. It finds the TVs on your network by itself; tap your LG TV.
- The TV shows a connection request from RemotApp. Select “Accept”.
- Tap Volume + to test. That’s it: your phone is now the remote.
Full guide for LG TVs, with fixes when it won’t connect
Turning the 75SJ8570 on without the remote
Turn on “Mobile TV On” (or “Turn on via Wi-Fi”), usually under Settings › General › Devices. The TV then accepts a wake-up signal from your phone while in standby.
Questions about the 75SJ8570
Can I control the LG 75SJ8570 with my phone?
Yes. The 75SJ8570 runs webOS 3.5, and RemotApp controls it over Wi-Fi with no setup beyond accepting the connection on the TV once.
What year is the LG 75SJ8570?
The 75SJ8570 is part of LG’s 2017 line (NanoCell SJ8570).
What operating system does the 75SJ8570 use?
The 75SJ8570 runs webOS 3.5.
How many HDMI ports does the 75SJ8570 have?
The 75SJ8570 has 4 HDMI ports.
Turning the 75SJ8570 on without the remote
Turn on “Mobile TV On” (or “Turn on via Wi-Fi”), usually under Settings › General › Devices. The TV then accepts a wake-up signal from your phone while in standby.
