1. Product Overview
The Nokia C21 Plus is an unlocked GSM smartphone designed for durability and extended battery life. It operates on Android 11 (Go Edition) and features a 6.52-inch HD+ display. This device is built to provide essential smartphone functionalities with a focus on security and user experience.

Image: Front and back view of the Nokia C21 Plus smartphone in charcoal color, highlighting its sleek design and rear camera module.
Key Features:
- Network Compatibility: Exclusively compatible with GSM carriers such as T-Mobile, Boost, Metro, Mint, and H2O Wireless in the US. Not compatible with AT&T, Verizon, or their subsidiaries.
- Display: Dazzling 6.5-inch HD+ screen.
- Design: Sleek 8.5mm thinness, designed for comfortable handling.
- Camera: 13MP dual-camera with panorama and beautification modes.
- Operating System: Clean Android 11 (Go Edition) with 2 years of quarterly security updates.
- Security: Biometric fingerprint and AI face unlock for secure access.
- Battery: Long-lasting battery life, providing days of usage on a single charge.
Product Video:
Video: An overview of the Nokia C21 Plus, showcasing its design, camera, and battery features.
2. Setup
2.1 Initial Charging
Before first use, fully charge your Nokia C21 Plus. Use the provided Power Adapter and USB Cable for optimal charging performance. Connect the USB cable to the phone's charging port and the adapter to a power outlet. The battery capacity is 4000 Milliamp Hours, with a charging time of approximately 3 hours.
2.2 SIM and SD Card Installation
The Nokia C21 Plus supports Dual SIM functionality and expandable memory. To insert your SIM card(s) and/or a microSD card:
- Locate the SIM/SD card tray on the side of the device.
- Use the SIM ejector tool (if provided) to open the tray.
- Place your Nano-SIM card(s) and/or microSD card into the designated slots on the tray. Ensure correct orientation.
- Carefully push the tray back into the phone until it clicks into place.

Image: The rear of the Nokia C21 Plus, indicating the location of the SIM/SD card tray on the side.
2.3 Powering On/Off
- To Power On: Press and hold the Power button (located on the side) until the Nokia logo appears on the screen.
- To Power Off: Press and hold the Power button, then select 'Power off' from the options that appear on the screen.
3. Operating Instructions
3.1 Basic Navigation
Your Nokia C21 Plus runs on Android 11 (Go Edition), offering a clean and intuitive user interface. Navigate through apps and settings using touch gestures on the 6.52-inch screen.

Image: The Nokia C21 Plus display showing the home screen with various application icons, demonstrating the Android 11 (Go Edition) interface.
3.2 Calls and Messaging
To make a call, tap the Phone icon, enter the number, and tap the call button. To send a message, tap the Messages icon, start a new conversation, enter the recipient and your message.
3.3 Camera Usage
Capture moments with the 13MP dual-camera system. The camera features panorama and beautification modes to enhance your photos. The phone includes both front and rear cameras.
3.4 Security Features
Secure your device with multiple unlock options:
- Fingerprint Sensor: Use the rear-mounted fingerprint sensor for quick and secure unlocking.
- AI Face Unlock: Utilize the front camera for convenient face recognition unlocking.
- Pattern/PIN/Password: Standard Android security options are also available.

Image: Close-up of the Nokia C21 Plus's rear, highlighting the circular fingerprint sensor for secure access.
3.5 Battery Management
The Nokia C21 Plus is equipped with a 4000 mAh battery, designed to provide up to 2 days of usage on a single charge and 24 hours of talk time. To optimize battery life, manage background app usage and adjust screen brightness.
4. Maintenance
4.1 Software Updates
Your Nokia C21 Plus receives 2 years of quarterly security updates to ensure your device remains secure and performs optimally. Regularly check for and install available software updates.
How to Update Your Phone Software:
Video: Step-by-step guide on how to search for and download new software updates for your Nokia phone.
4.2 Rebooting the Device
If your phone is experiencing minor issues or slow performance, a simple reboot can often resolve them.
How to Reboot Your Nokia Phone:
Video: Instructions on how to properly reboot your Nokia phone to resolve common issues.
5. Troubleshooting
For common issues such as device unresponsiveness, network connectivity problems, or app malfunctions, try the following:
- Restart your device (refer to section 4.2).
- Check your network settings and ensure your SIM card is properly inserted.
- Clear cache for problematic apps or reinstall them.
- Ensure your software is up to date (refer to section 4.1).
If you are unable to resolve an issue, Nokia offers support services.
Chat with Nokia Support:
Video: A guide on how to access and utilize the chat support feature for Nokia phones.
6. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 6.49 x 2.99 x 0.34 inches |
| Item Weight | 6.3 ounces |
| ASIN | B0C2T2XLZZ |
| Item model number | TA-1425 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| OS | Android 11.0 |
| RAM | 2 GB |
| Wireless communication technologies | Cellular |
| Connectivity technologies | Bluetooth, USB, Wi-Fi |
| GPS | True |
| Special features | Built-In GPS, Dual SIM, Expandable Memory, Fingerprint Sensor |
| Other display features | Wireless |
| Human Interface Input | Buttons, Microphone, Touchscreen |
| Scanner Resolution | 720 x 1600 |
| Other camera features | Front, Rear |
| Audio Jack | 3.5 mm |
| Form Factor | Slate |
| Color | Charcoal |
| Battery Power Rating | 4000 Milliamp Hours |
| Phone Talk Time | 24 Hours |
| Whats in the box | Power Adapter, USB Cable |
| Manufacturer | HMD Global Oy |
| Date First Available | April 18, 2023 |
| Memory Storage Capacity | 64 GB |
| Standing screen display size | 6.52 Inches |
| Ram Memory Installed Size | 2 GB |
| Battery Capacity | 4000 Milliamp Hours |
| Weight | 6.28 Ounces |
| Charging Time | 3 Hours |
| Brand | Nokia |
| Operating System | Android 11.0 |
| CPU Speed | 1.6 GHz |
| Screen Size | 6.52 Inches |
| Resolution | 720 x 1600 |
| Refresh Rate | 60 Hz |
| Model Name | C21 Plus |
| Wireless Carrier | Unlocked |
7. Warranty & Support
The Nokia C21 Plus is manufactured by HMD Global Oy. It comes with a commitment to 2 years of quarterly security updates to ensure your device remains protected against emerging threats.
What's in the Box:
- Power Adapter
- USB Cable
For additional support, troubleshooting, or warranty information, please visit the official Nokia mobile support website:





