RemotApp Download

OLED 4K B5 77″ (2025)

LG OLED77B5PUA

Full specifications, official manuals and how to use your phone as the remote for this LG TV.

Screen
77″
Resolution
4K
Year
2025
Line
OLED
System
webOS 25

Does the OLED77B5PUA work with RemotApp?

Yes. The OLED77B5PUA runs webOS 25, 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 OLED77B5PUA means

TV model codes follow the maker’s naming rules. Reading it piece by piece:

  1. OLEDPanel technology · OLED
  2. 77Screen size in inches
  3. B5Series (2025 line) · OLED
  4. PUAMarket code · United States

OLED77B5PUA specifications

Display

Display diagonal195.6 cm (77")
HD type4K Ultra HD
Display technologyOLED
Screen shapeFlat
Native aspect ratio16:9
Motion interpolation technologyOLED Motion
Native refresh rate120 Hz
Display resolution3840 x 2160 pixels
Display diagonal (metric)195.6 cm

TV tuner

Tuner typeAnalog & digital
Digital signal format systemATSC, QAM

Smart TV

Smart TVYes
Internet TVYes
Operating system installedWebOS
Operating system version25
Screen mirroringYes
Apple AirPlay 2 supportYes
Smart modesFilmmaker, Game
App distribution platformLG Apps
Video appsAmazon Prime Video, Apple TV, Disney+, Netflix, YouTube

Audio

Number of speakers2
Audio output channels2.0 channels
Audio decodersDolby Atmos
Sound modesAI Sound Pro, Clear Voice Pro
Speaker directionDown firing
TV Sound Mode ShareYes
Enhanced Audio Return Channel (eARC)Yes

Network

Wi-FiYes
Wi-Fi standardsWi-Fi 6E (802.11ax)
BluetoothYes
Bluetooth version5.3
Ethernet LANYes
BrowsingYes
Web browserYes

Design

Product colourBlack
VESA mountingYes
Panel mounting interface300 x 200 mm
Introduction year2025
Stand typeLegs stand
Stand colourBlack

Performance

High Dynamic Range (HDR) technologyDolby Vision, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG)
Game modeYes
Audio formats supportedAAC, AC3, AC4, EAC3, HE-AAC, MP2, MP3, PCM, WMA, apt-X
AI UpscaleYes
Backlight dimming technologyPixel Dimming
Picture processorα8 Gen 2 AI Processor 4K
High Dynamic Range (HDR) supportedYes
AMD FreeSyncYes
AMD FreeSync typeFreeSync
NVIDIA G-SYNCYes
NVIDIA G-SYNC typeG-SYNC Compatible
Game featuresAuto Low Latency Mode (ALLM), Game Optimizer, HGiG, Variable Refresh Rate (VRR)
WiSA ReadyYes
Multi ViewYes
Smartphone/tablet remote supportYes

Ports & interfaces

PC in (D-Sub)No
Ethernet LAN (RJ-45) ports1
USB 2.0 ports quantity2
Digital audio optical out1
RS-232C ports1
RF ports quantity1
HDMI ports quantity4
Consumer Electronics Control (CEC)SimpLink

Management features

Voice controlYes
Firmware upgradeableYes
Works with Amazon AlexaYes
Works with the Google AssistantYes

Power

Power consumption (standby)0.5 W
Power consumption (max)187 W
AC input voltage120 V
AC input frequency50/60 Hz

Brand-specific features

LG technologies (AV/TV)AI Super Upscaling 4K, Dynamic Tone Mapping Pro, LG Sound Sync, ThinQ™

Sustainability

Sustainability certificatesENERGY STAR

Weight & dimensions

Width (with stand)1719.6 mm
Depth (with stand)320 mm
Height (with stand)1056.6 mm
Weight (with stand)23.5 kg
Width (without stand)1719.6 mm
Depth (without stand)50.8 mm
Height (without stand)988.1 mm
Weight (without stand)22.9 kg
Stand width140.2 cm

Packaging data

Package width1839 mm
Package depth200.7 mm
Package height1130.3 mm
Package weight33.5 kg

Packaging content

Desktop standYes
Cables includedAC
Remote control includedYes
E-manualYes

Other features

Country of originMexico

Technical data: Open Icecat and the manufacturer. Check the official page before buying; specs can vary by batch and market.

How to control the OLED77B5PUA with your phone

  1. Connect your phone to the same Wi-Fi network as the TV. (Not the guest network.)
  2. Turn the TV on and install RemotApp on your phone.
  3. Open RemotApp. It finds the TVs on your network by itself; tap your LG TV.
  4. The TV shows a connection request from RemotApp. Select “Accept”.
  5. 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 OLED77B5PUA 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.

Also sold as

Same TV, different market codes:

  • OLED77B5PSA Latin America
  • OLED77B5PSA Latin America

Questions about the OLED77B5PUA

Can I control the LG OLED77B5PUA with my phone?

Yes. The OLED77B5PUA runs webOS 25, and RemotApp controls it over Wi-Fi with no setup beyond accepting the connection on the TV once.

What year is the LG OLED77B5PUA?

The OLED77B5PUA is part of LG’s 2025 line (OLED B5).

What operating system does the OLED77B5PUA use?

The OLED77B5PUA runs webOS 25.

How many HDMI ports does the OLED77B5PUA have?

The OLED77B5PUA has 4 HDMI ports.

Does the OLED77B5PUA have Bluetooth?

Yes

Turning the OLED77B5PUA 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.