1. Introduction
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your Samsung Galaxy Note 20 5G smartphone. The Galaxy Note 20 5G SM-N981U is designed to offer advanced features and practical functionality. It includes an expansive and vibrant display, a versatile camera system, a robust processor for high performance, and a substantial battery with intelligent features to enhance daily tasks.

Figure 1: Samsung Galaxy Note 20 5G device overview, showing the front display, rear camera module, and the S Pen.
2. Initial Setup
2.1 Package Contents
Before you begin, ensure your package contains the Samsung Galaxy Note 20 5G device and a charging cable. Other accessories may vary.
2.2 Inserting the SIM Card
- Locate the SIM card tray on the side of your device.
- Insert the SIM ejection tool (not included) into the small hole on the tray to open it.
- Place your Nano-SIM card into the tray with the gold contacts facing down.
- Gently push the tray back into the slot until it clicks into place.
2.3 Charging the Device
Connect the provided charging cable to the USB Type-C port at the bottom of your phone and plug the other end into a compatible power adapter (sold separately). For optimal charging, use a 20W fast charger.
2.4 Powering On/Off
- To power on: Press and hold the Power/Side key until the Samsung logo appears.
- To power off: Press and hold the Power/Side key and Volume Down button simultaneously, then tap 'Power off' on the screen. Alternatively, swipe down from the top of the screen to open the Quick Panel, tap the Power icon, and select 'Power off'.

Figure 2: Rear view of the Samsung Galaxy Note 20 5G, highlighting the camera module and the S Pen slot.
3. Operating Your Device
3.1 Display Features
The Galaxy Note 20 5G features a 6.7-inch Super AMOLED Plus display with Full HD+ resolution (2400 x 1080 pixels) and HDR10+ support. This display provides bright, vibrant colors and sharp detail, suitable for various media consumption and productivity tasks.
3.2 Camera System
Your device is equipped with a triple-camera system:
- 12MP Ultra-Wide Lens: For expansive landscape shots.
- 12MP Wide-Angle Lens: Standard high-resolution photography.
- 64MP Telephoto Lens: Offers 3x hybrid optical zoom for distant subjects.
Key camera features include Night Mode for low-light conditions, Super Steady video for smooth recordings, and advanced autofocus for clear images. The front camera is 10MP.
3.3 S Pen Functionality
The signature S Pen provides precise input for note-taking, drawing, and remote control. Air Actions allow you to control apps, presentations, and media with simple gestures without touching the screen.

Figure 3: Close-up of the Samsung Galaxy Note 20 5G's rear, showing the camera array and the S Pen.
3.4 Performance and Multitasking
Powered by a Snapdragon 865+ processor (U.S. models) and 8GB of RAM, the Note 20 5G delivers smooth multitasking and fast app performance. Samsung DeX support allows for a desktop-like experience when connected to an external display.
3.5 Battery and Power Management
The device includes a 4,300 mAh battery. It supports fast wired charging, fast wireless charging, and reverse wireless charging, allowing you to power other compatible devices.
3.6 Connectivity
The Galaxy Note 20 5G supports ultra-fast 5G connectivity for seamless streaming, gaming, and communication. It also includes Wi-Fi and Bluetooth for wireless connections.
3.7 Biometric Security
The device features Face Recognition for convenient unlocking. It also includes a fingerprint reader, which may require firm pressure with a screen protector installed.
4. Maintenance and Care
4.1 Cleaning Your Device
Use a soft, lint-free cloth to clean the screen and body of your phone. Avoid using harsh chemicals or abrasive materials that could damage the finish.
4.2 Water and Dust Resistance
The Galaxy Note 20 5G has an IP68 rating for water and dust resistance. This means it can withstand immersion in up to 1.5 meters of fresh water for up to 30 minutes. Avoid exposing the device to high-pressure water or liquids other than fresh water. Ensure all ports are dry before charging.
4.3 Battery Care
To prolong battery life, avoid extreme temperatures. Do not leave the device fully charged or fully discharged for extended periods. Use only approved chargers and cables.
4.4 Software Updates
Regularly check for and install software updates to ensure your device has the latest features, security patches, and performance improvements. Go to Settings > Software update > Download and install.
5. Troubleshooting Common Issues
5.1 Device Not Powering On
- Ensure the battery is charged. Connect the device to a charger for at least 10 minutes before attempting to power it on.
- Perform a forced restart: Press and hold the Power/Side key and Volume Down button for more than 7 seconds.
5.2 Screen Unresponsive
- Restart the device using the forced restart method mentioned above.
- If the issue persists, try booting into Safe Mode to check if a third-party app is causing the problem.
5.3 Rapid Battery Drain
- Check battery usage in Settings > Battery and device care > Battery to identify apps consuming excessive power.
- Reduce screen brightness and disable unnecessary features like Wi-Fi, Bluetooth, or GPS when not in use.
- Ensure all apps are updated to their latest versions.
5.4 S Pen Not Working
- Ensure the S Pen is properly inserted into its slot.
- Check S Pen settings in Settings > Advanced features > S Pen.
- If the S Pen is damaged, it may need replacement.
5.5 Network Connectivity Issues
- Toggle Airplane Mode on and off.
- Restart your device.
- Reset network settings: Settings > General management > Reset > Reset network settings.
6. Technical Specifications
| Brand | Samsung |
| Model Name | Galaxy Note 20 |
| Operating System | Android |
| CPU Model | Snapdragon |
| CPU Speed | 2.42 GHz |
| RAM Memory Installed Size | 8 GB |
| Memory Storage Capacity | 128 GB |
| Screen Size | 6.7 Inches |
| Resolution | 2400 x 1080 Pixels |
| Display Type | AMOLED |
| Refresh Rate | 60 Hz |
| Cellular Technology | 5G |
| Connectivity Technology | Bluetooth, Wi-Fi |
| Rear Facing Camera Photo Sensor Resolution | 12 MP (Ultra-Wide), 12 MP (Wide-Angle), 64 MP (Telephoto) |
| Front Photo Sensor Resolution | 10 MP |
| Battery Capacity | 4300 Milliamp Hours |
| Water Resistance Level | Water Resistant (IP68) |
| Biometric Security Feature | Face Recognition, Fingerprint Sensor |
| Connector Type | USB Type C |
| Item Dimensions | 6.36 x 2.96 x 0.33 inches |
| Item Weight | 0.01 Ounces |
7. Warranty Information
As a renewed product, the warranty terms may differ from a new device. Please refer to the specific warranty information provided by the seller at the time of purchase. Typically, renewed products come with a limited warranty covering defects in materials and workmanship for a specified period. For detailed information, consult your purchase documentation or contact the seller directly.
8. Customer Support
For further assistance, technical support, or warranty claims, please contact the seller from whom you purchased this renewed device. You may also visit the official Samsung support website for general product information and resources:







