LG V40 ThinQ User Manual

The LG V40 ThinQ is a premium smartphone featuring a 6.4-inch OLED FullVision display, triple rear cameras (standard, telephoto, wide-angle), dual front cameras, Qualcomm Snapdragon 845 processor, 6GB RAM, 64GB/128GB storage (expandable via microSD), IP68 water and dust resistance, 3300mAh battery with fast charging and wireless charging, Android 8.1 (Oreo) upgradable, Google Assistant, Hi-Fi Quad DAC, Boombox Speaker, and AI-powered camera features. Below are key sections for safety, features, setup, operation, and troubleshooting.

1. Features at a Glance 2. Getting Started 3. First-Time Setup 4. Specifications 5. Device Layout & Controls 6. Using the Camera 7. Connectivity 8. Battery & Charging 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 6.4-inch OLED display, Triple Rear Camera System, Dual Front Cameras, Fingerprint Sensor, Google Assistant Button, USB Type-C port, 3.5mm headphone jack with Quad DAC.

FeatureDescription
Display6.4-inch QHD+ OLED FullVision Display (3120 x 1440)
Rear Cameras12MP Standard (f/1.5), 12MP Telephoto (f/2.4), 16MP Wide-angle (f/1.9)
Front Cameras8MP Standard (f/1.9), 5MP Wide-angle (f/2.2)
ProcessorQualcomm Snapdragon 845
Memory6GB RAM, 64GB/128GB internal storage, microSD expandable (up to 2TB)
Battery3300mAh with Qualcomm Quick Charge 3.0 & wireless charging
AudioHi-Fi Quad DAC, Stereo speakers, DTS:X 3D Surround Sound
DurabilityIP68 water and dust resistance, MIL-STD-810G compliant
SecurityRear fingerprint sensor, Face recognition
Connectivity4G LTE, Wi-Fi 802.11 a/b/g/n/ac, Bluetooth 5.0, NFC, USB Type-C

Getting Started

Unpack and inspect contents. Ensure all items are present.

  1. Insert SIM card: Use eject tool to open SIM tray. Place nano-SIM and/or microSD card.
  2. Insert battery: Non-removable battery is pre-installed.
  3. Charge device: Connect USB Type-C cable to charger and phone. Charge fully before first use.
  4. Power on: Press and hold the Side Key (Power button).

WARNING! Do not expose device to liquids beyond IP68 rating. Avoid extreme temperatures.

First-Time Setup

Power on device; follow on-screen prompts.

  1. Select language: Choose preferred language (default is English).
  2. Connect to network: Select Wi-Fi network and enter password, or use mobile data.
  3. Sign in to Google Account: Required for app downloads, backups, and services.
  4. Set up security: Configure fingerprint, face recognition, PIN, pattern, or password.
  5. Restore data: Option to restore apps and data from previous Android device or cloud backup.
  6. Agree to terms: Review and accept LG and Google terms of service.

CAUTION! Keep your security credentials (PIN, password) in a safe place.

Specifications

Device Layout & Controls

Access settings via Quick Settings panel or Settings app.

Physical Buttons: Side Key (Power/Lock), Volume Up/Down, Google Assistant Key, SIM tray.

Ports & Sensors: USB Type-C, 3.5mm headphone jack, microphone, speaker, fingerprint sensor.

On-Screen Navigation: Use gesture navigation or traditional buttons (Back, Home, Recent Apps).

Settings Menu: Network & internet, Connected devices, Apps & notifications, Battery, Display, Sound, Security & location, Accounts, Digital Wellbeing, System.

Using the Camera

Triple rear camera with AI Cam, Portrait Mode, Night View, Cine Video, Manual modes.

  1. Open Camera: Tap Camera icon or double-press Volume Down key (when screen is off).
  2. Switch lenses: Tap 1x, 2x, or wide-angle icon to change between standard, telephoto, and wide.
  3. AI Cam: Automatically recognizes scene and optimizes settings.
  4. Manual Mode: Adjust ISO, shutter speed, white balance, focus, and more.
  5. Portrait Mode: Blur background for professional-looking photos.
  6. Google Lens: Access via viewfinder to identify objects, scan QR codes.
  7. Record video: Supports up to 4K HDR10 video recording.

Tip: Use Tripod mode in low light for clearer Night View shots.

Connectivity

Connect to Wi-Fi, Bluetooth devices, mobile networks, and other accessories.

  1. Wi-Fi: Settings > Network & internet > Wi-Fi. Select network and enter password.
  2. Bluetooth: Settings > Connected devices > Pair new device. Select device to pair.
  3. Mobile data: Ensure SIM is active. Settings > Network & internet > Mobile network.
  4. NFC & Android Beam: Enable for contactless payments and file sharing.
  5. USB connection: Connect to PC via USB Type-C for file transfer or charging.

Tip: Use Wi-Fi Calling and VoLTE for enhanced call quality (carrier dependent).

Battery & Charging

3300mAh battery supports fast wired and wireless charging.

  1. Charging: Use included charger and cable for fastest charging. Wireless charger sold separately.
  2. Battery Saver: Extends battery life by limiting background activity. Enable in Settings > Battery.
  3. Battery Usage: Check which apps use most battery in Settings > Battery > Battery usage.
  4. Optimize battery: Enable Adaptive Battery in Settings > Battery > Adaptive Battery.

WARNING! Use only LG-approved chargers and cables. Do not charge near water.

Care & Maintenance

Unplug charger before cleaning. Use soft, dry cloth; avoid liquids and abrasive materials.

CAUTION! IP68 rating protects against fresh water immersion up to 1.5m for 30 minutes. Not resistant to high-pressure water, salt water, or other liquids. Avoid extreme temperatures.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © LG Electronics Inc. All rights reserved. For support, visit www.lg.com/us/support or contact LG Customer Service at 1-800-243-0000.

Troubleshooting

SymptomPossible CauseCorrective Action
Device won't turn onBattery drainedCharge for at least 10 minutes before attempting to power on.
Slow performanceToo many apps running, storage fullRestart device. Clear cache in Settings > Storage. Uninstall unused apps.
OverheatingExtended use, poor signal, faulty chargerAllow device to cool. Avoid using while charging. Use original charger.
Wi-Fi not connectingIncorrect password, router issueRestart router and device. Forget network and reconnect.
Bluetooth pairing failedDevice out of range, not discoverableEnsure device is in pairing mode. Move closer. Restart Bluetooth.
Camera not focusingLens dirty, software issueClean lens with soft cloth. Restart camera app or device.
No sound from speakerVolume muted, debris in speakerCheck volume settings. Clean speaker grill gently. Restart device.
Fingerprint sensor not workingWet/dirty finger, sensor dirtyDry and clean finger and sensor. Re-register fingerprint.

Reset: Settings > System > Reset options (Reset Wi-Fi, mobile & Bluetooth or Factory data reset).

Service: 1-800-243-0000; www.lg.com/us/support

LG V40 ThinQ User Manual © - All Rights Reserved 2025