Installation Guide
What's in the Box:
- LG V40 ThinQ smartphone
- USB-C charging cable
- Wall charger adapter
- SIM ejector tool
- Quick start guide
- Warranty information
Step-by-Step Setup
- Insert SIM Card: Use the SIM ejector tool to open the SIM tray and insert your nano-SIM card.
- Power On: Press and hold the power button until the device vibrates and the LG logo appears.
- Initial Setup: Follow the on-screen instructions to select language, connect to Wi-Fi, and sign in to your Google account.
- Transfer Data: Use LG Mobile Switch to transfer data from your old device (optional).
- Set Up Security: Configure fingerprint sensor, face recognition, or PIN/password protection.
- Update Software: Check for and install any available system updates.
- Customize Settings: Adjust display, sound, and notification settings to your preference.
Specifications
| Model Number | LM-V405 |
| Display | 6.4-inch OLED FullVision (3120 x 1440) |
| Processor | Qualcomm Snapdragon 845 |
| RAM | 6GB |
| Storage | 64GB/128GB (expandable via microSD up to 2TB) |
| Rear Cameras | 16MP Standard + 16MP Ultra Wide + 12MP Telephoto |
| Front Cameras | 8MP Standard + 5MP Wide |
| Battery | 3300mAh (non-removable) |
| Operating System | Android 8.1 Oreo (upgradable to Android 10) |
| Connectivity | 4G LTE, Wi-Fi 802.11ac, Bluetooth 5.0, NFC |
| Dimensions | 158.8 x 75.7 x 7.6 mm |
| Weight | 169g |
Warranty Information
- Standard Warranty: 1 year manufacturer's warranty
- Battery Warranty: 6 months
- Accessories Warranty: 3 months
- Extended Coverage: Optional LG Care program available
For warranty service, contact LG Customer Service at 1-800-243-0000 or visit LG.com
Key Features
Triple Rear Camera System
Professional-grade triple camera setup with standard, ultra-wide, and telephoto lenses for versatile photography in any situation.
Boombox Speaker
Revolutionary speaker technology that uses the internal space as a resonance chamber for powerful, immersive sound.
OLED FullVision Display
6.4-inch QHD+ OLED display with HDR10 support for stunning visuals with perfect blacks and vibrant colors.
Google Assistant
Dedicated Google Assistant button for quick access to voice commands, information, and smart home control.
Hi-Fi Quad DAC
Advanced audio technology delivering studio-quality sound for headphones with support for high-resolution audio formats.
AI Camera
Intelligent camera system that automatically recognizes scenes and optimizes settings for the best possible photos.
Camera Modes Explained
Auto Mode
AI-powered automatic settings adjustment for optimal photos in any condition
Manual Mode
Full manual control over ISO, shutter speed, white balance, and focus
Portrait Mode
Professional bokeh effects with adjustable background blur
Cine Video
Cinematic video recording with LG's unique color grading options
Super Bright Camera
Enhanced low-light photography using pixel binning technology
Google Lens
Visual search technology to identify objects, text, and landmarks
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Phone won't turn on | Battery drained, power button issue | Charge for 30 minutes, try force restart (Vol Down + Power) |
| Poor battery life | Background apps, high brightness, weak signal | Optimize battery settings, reduce brightness, close unused apps |
| Camera not working | App crash, storage full, software issue | Restart phone, clear storage, update camera app |
| Overheating | Heavy usage, poor ventilation, faulty battery | Allow to cool, avoid direct sunlight, check for updates |
| Connectivity issues | Network problems, software glitch, SIM issue | Toggle airplane mode, restart device, check SIM |
| Slow performance | Storage full, too many apps, need update | Clear cache, uninstall unused apps, factory reset |
Common Error Messages
- No SIM card detected: Reinsert SIM card, clean SIM contacts
- Storage space running out: Delete unused files, move to cloud storage
- Camera failed: Restart device, clear camera app cache
- Network not available: Check signal strength, reset network settings
- Charging slowly: Use original charger, check cable connection
- Fingerprint sensor not working: Re-register fingerprints, clean sensor
Manual Downloads
Current Model Manuals
LM-V405UA
LG V40 ThinQ (US Version)
LM-V405EBW
LG V40 ThinQ (European Version)
LM-V409N
LG V40 ThinQ (Korean Version)
LM-V405
LG V40 ThinQ (Global Version)
Related Models
LM-V500
LG V50 ThinQ 5G
LM-G850
LG G8 ThinQ
LM-G910
LG G8X ThinQ
LM-V350
LG V35 ThinQ