1. Getting Started
1.1. What's in the Box
Verify that the following items are included with your renewed Samsung Galaxy S20U:
- Power Adapter
- USB Cable
- SIM Tray Ejector
Note: Additional accessories such as headphones or a SIM card are not included.
1.2. Device Overview
Familiarize yourself with the physical components of your Samsung Galaxy S20U.

Image: Front view of the Samsung Galaxy S20U. This image shows the device from the front, highlighting the display, front camera, and slim bezels.

Image: Rear view of the Samsung Galaxy S20U. This image displays the back panel, including the prominent multi-lens camera module and the Samsung branding at the bottom.

Image: Front and rear views of the Samsung Galaxy S20U. This composite image presents both the front and back of the device, offering a complete visual reference of its design.
2. Initial Setup
2.1. Inserting the SIM Card
- Locate the SIM card tray on the side of your device.
- Insert the provided SIM Tray Ejector into the small hole next to the tray and press gently until the tray pops out.
- Place your Nano-SIM card into the tray with the gold contacts facing down.
- Carefully reinsert the tray into the device until it clicks into place.
2.2. Charging the Device
Before first use, it is recommended to fully charge your device.
- Connect the USB Cable to the Power Adapter.
- Plug the Power Adapter into a wall outlet.
- Connect the USB Cable to the USB-C port at the bottom of your Samsung Galaxy S20U.
- The charging indicator will appear on the screen.
2.3. Powering On and Initial Configuration
- Press and hold the Power button (located on the right side of the device) until the Samsung logo appears.
- Follow the on-screen prompts to complete the initial setup, including language selection, Wi-Fi connection, Google account setup, and security settings.
- Your device runs on Android 10.0.
3. Basic Operation
3.1. Navigating the Interface
The Samsung Galaxy S20U features a responsive touchscreen for interaction:
- Tap: Select an item or open an application.
- Swipe: Move between screens or scroll through content.
- Pinch: Zoom in or out on images and web pages.
- Long Press: Access contextual menus or move icons.
3.2. Making Calls and Sending Messages
To make a call, open the Phone app and dial the number, then tap the call icon. To send a message, open the Messages app, start a new conversation, enter the recipient and your message, then send.
3.3. Connecting to Networks
Your device supports various connectivity options:
- Wi-Fi: Go to Settings > Connections > Wi-Fi to connect to available wireless networks.
- Cellular (5G): Your device is unlocked and supports 5G cellular technology. Ensure your SIM card and plan support 5G for optimal performance.
- Bluetooth: Go to Settings > Connections > Bluetooth to pair with Bluetooth devices like headphones or speakers.
3.4. Using the Camera
The Samsung Galaxy S20U is equipped with both front and rear cameras. Open the Camera app to capture photos and videos. The scanner resolution is 1920 x 1080.
4. Device Maintenance
4.1. Battery Management
Your device is powered by a 5000 Milliamp Hours (mAh) Lithium Ion battery. As a renewed product, the battery is guaranteed to exceed 80% capacity relative to a new battery. To optimize battery life:
- Adjust screen brightness.
- Close unused applications.
- Enable power-saving modes when needed.
4.2. Cleaning Your Device
To clean your device, use a soft, lint-free cloth. Avoid abrasive materials or harsh chemicals. Gently wipe the screen and body. Do not submerge the device in water.
4.3. Software Updates
Regularly check for software updates to ensure your device has the latest features and security patches. Go to Settings > Software update > Download and install.
5. Troubleshooting
5.1. Common Issues
If you encounter issues with your device, consider the following:
- Device not responding: Press and hold the Power button for about 10 seconds to force a restart.
- Charging issues: Ensure the USB cable and power adapter are securely connected and free from damage. Try a different outlet.
- Network connectivity problems: Toggle Airplane Mode on and off, or restart your device. Check SIM card insertion.
- Cosmetic condition: As a renewed product, the device is in "Excellent condition" with no cosmetic damage visible from 12 inches away. Any minor imperfections beyond this should be addressed with the seller.
- eSIM functionality: While the S20U supports eSIM, some renewed devices or carrier configurations may present compatibility challenges. Consult your carrier or the seller if you experience issues.
5.2. Factory Reset
A factory reset will erase all data from your device and restore it to its original factory settings. This can resolve persistent software issues but should be used as a last resort after backing up your data. Go to Settings > General management > Reset > Factory data reset.
6. Specifications
6.1. Technical Specifications
| Feature | Detail |
|---|---|
| Brand | Samsung |
| Model Name | Samsung S20U |
| Operating System | Android 10.0 |
| Memory Storage Capacity | 128 GB |
| RAM Memory Installed Size | 16 GB |
| Screen Size | 6.9 Inches |
| Display Technology | AMOLED |
| Resolution | 1920 x 1080 |
| Battery Capacity | 5000 Milliamp Hours |
| Wireless Carrier | Unlocked for All Carriers |
| Cellular Technology | 5G |
| Connectivity Technologies | Bluetooth |
| Item Weight | 12 ounces |
| Color | Cosmic Black |
7. Warranty and Support
7.1. Amazon Renewed Guarantee
This renewed product is backed by the Amazon Renewed Guarantee. Your purchase is eligible for a refund or replacement within 90 days of receipt if the product does not work as expected. This guarantee covers issues not caused by accidental damage.
For more details on the Amazon Renewed program and its guarantee, please visit the Amazon Renewed Store.





