1. Setup
1.1 Package Contents
Verify that all items are present in the package:
- 1 x DOOGEE N55 Pro Android 14 Cellphone
- 1 x Type-C Port Cable
- 1 x Charger
- 1 x SIM Card Pin
- 1 x TP Protective film (pre-applied)
- 1 x TPU Protective case
- 1 x Manual
- 1 x Warranty Card
1.2 SIM Card and TF Card Installation
The DOOGEE N55 Pro supports Dual SIM functionality, allowing for two Nano SIM cards or one Nano SIM card and one TF (MicroSD) card for expanded storage.
- Locate the SIM card tray on the side of the phone.
- Insert the SIM ejector pin into the small hole next to the tray and press gently until the tray pops out.
- Place your Nano SIM card(s) and/or TF card into the designated slots on the tray. Ensure the cards are correctly oriented.
- Carefully push the tray back into the phone until it is flush with the device body.
Image Description: A visual guide demonstrating the insertion of SIM cards and a TF card into the phone's tray, alongside illustrations of Face ID, GPS, and the 3.5mm earphone port.
1.3 Initial Power On and Charging
- Press and hold the Power button (usually on the right side of the device) until the DOOGEE logo appears.
- Follow the on-screen prompts to complete the initial setup, including language selection, Wi-Fi connection, and Google account setup.
- To charge the device, connect the provided Type-C cable to the phone's charging port and the other end to the charger. Plug the charger into a power outlet.
- The phone features a 5150mAh battery. For optimal battery life, it is recommended to fully charge the device before first use.
Image Description: An illustration of the DOOGEE N55 Pro connected to a charger, highlighting its 5150mAh battery and estimated usage times for standby, calling, video, and music.
2. Operating Instructions
2.1 Android 14 Operating System
The DOOGEE N55 Pro operates on the Android 14 system, offering enhanced privacy, security features, and personalized settings. This ensures a smooth and efficient experience across various applications.
Image Description: Multiple screenshots of the Android 14 interface, displaying various settings menus such as Network & Internet, Connected devices, Apps, Notifications, Battery, Storage, Scheduled power on/off, and Home settings.
2.2 Display Features
The device features a 6.56-inch HD+ IPS waterdrop display with a 90Hz dynamic refresh rate. This provides a clear visual experience with smooth animations and responsive touch.
- Screen Size: 6.56 inches
- Resolution: 1612 x 720 pixels
- Refresh Rate: 90Hz
- Pixel Density: 269 PPI
- Aspect Ratio: 20:9
Image Description: A close-up view of the phone's display, illustrating its 6.56-inch size and listing key display specifications like resolution, PPI, and aspect ratio.
2.3 Performance and Storage
Equipped with an octa-core processor, the N55 Pro handles demanding applications and multitasking efficiently. It comes with 16GB RAM (6GB physical + 10GB virtual) and 256GB internal storage, expandable up to 1TB via a TF card.
- Processor: Octa-Core (1.6GHz Spreadtrum)
- RAM: Up to 16GB (6GB + 10GB Virtual)
- Internal Storage: 256GB ROM
- Expandable Storage: Up to 1TB via TF card
Image Description: Graphics depicting the 1.6GHz octa-core processor and the phone's memory configuration, showing 16GB RAM (6GB + 10GB virtual) and 256GB ROM, with expansion options up to 1TB for ROM and 16GB for RAM.
2.4 Camera System
The phone features a 13MP main camera and an 8MP front camera, supporting various photography modes for different scenarios.
- Rear Camera: 13MP AI Main Camera
- Front Camera: 8MP
- Supported Modes: HDR, Watermark, Video, Picture, Beauty, Pro Mode, Portrait, GIF, Panorama, Filter, QR Code, Night mode
Image Description: A visual representation of the phone's camera system, highlighting the 13MP+8MP setup and listing various camera features and modes such as HDR, Pro Mode, Portrait, and Night mode.
2.5 Battery Life
The 5150mAh battery provides extended usage times, designed to last more than a day under regular use.
- Standby Time: Up to 419 hours
- Calling Time: Up to 36 hours
- Video Playback: Up to 9.5 hours
- Music Playback: Up to 35 hours
2.6 Security Features
The DOOGEE N55 Pro supports Face Unlock (Face ID) for convenient and secure access to your device.
Image Description: A graphic illustrating the Face ID feature, showing a user unlocking the phone by scanning their face.
2.7 Connectivity
The device offers comprehensive network support and essential connectivity options.
- Cellular Technology: 4G (Dual SIM)
- Network Bands:
4G FDD: B1/2/3/4/5/7/8/18/19/20/25/26/28A/28B/66
TDD: 38/40/41
3G WCDMAB: 1/2/4/5/8
2G GSM: B2/3/5/8 - Navigation: GPS, Glonass, Galileo, Beidou
- Audio Jack: 3.5mm
Image Description: A visual representation of the 3.5mm earphone port on the DOOGEE N55 Pro, emphasizing stable and distortion-free audio transmission. Note that earphones are not included.
3. Maintenance
3.1 General Care
- Screen Protection: The phone comes with a pre-applied TP protective film. For additional protection, consider using the included TPU protective case.
- Cleaning: Use a soft, lint-free cloth to clean the screen and body of the phone. Avoid using harsh chemicals or abrasive materials.
- Environmental Conditions: Avoid exposing the phone to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
- Storage: If storing the phone for an extended period, ensure it is charged to about 50% and stored in a cool, dry place.
3.2 Software Updates
Regularly check for and install software updates to ensure your device has the latest security patches and performance improvements. Updates can typically be found in the phone's Settings menu under "System" or "About phone".
4. Troubleshooting
This section addresses common issues you might encounter with your DOOGEE N55 Pro.
4.1 Device Not Powering On
- Ensure the battery is sufficiently charged. Connect the phone to its charger and allow it to charge for at least 15-30 minutes before attempting to power it on again.
- Try performing a forced restart by holding down the Power button for 10-15 seconds.
4.2 Network Connectivity Issues
- Verify that your SIM card is correctly inserted and activated with your carrier.
- Check if your device is within network coverage.
- Go to Settings > Network & internet > Mobile network and ensure mobile data is enabled.
- Try restarting the phone.
- Confirm that your local frequency bands are compatible with the phone's supported bands (refer to Specifications).
4.3 Storage Full
- Delete unnecessary files, photos, and videos.
- Uninstall unused applications.
- Move large files to a TF card (up to 1TB supported).
- Clear cache data for apps in Settings > Apps.
4.4 Other Issues
For issues not covered here, please refer to the Warranty & Support section for contact information.
5. Specifications
| Feature | Detail |
|---|---|
| Model Name | N55 Pro |
| Operating System | Android 14 |
| Processor | Octa-Core (1.6GHz Cortex A8 Processor) |
| RAM | 16 GB (6GB physical + 10GB virtual) |
| Internal Storage | 256 GB |
| Expandable Storage | Up to 1TB via TF card |
| Screen Size | 6.56 Inches |
| Resolution | 1612 x 720 (HD+) |
| Refresh Rate | 90 Hz |
| Main Camera | 13 MP |
| Front Camera | 8 MP |
| Battery Capacity | 5150 mAh |
| Charging Port | Type-C |
| Audio Jack | 3.5 mm |
| Wireless Carrier | Unlocked for All Carriers |
| Cellular Technology | 4G |
| Navigation | GPS, Glonass, Galileo, Beidou |
| Security Features | Face Unlock |
| Item Weight | 1 pounds (approx. 186g) |
| Dimensions | 8.6 mm thickness |
6. Warranty & Support
6.1 Product Warranty
The DOOGEE N55 Pro comes with a two-year warranty from the date of purchase. This warranty covers manufacturing defects and ensures the product meets its specified performance standards.
6.2 Technical Support
DOOGEE offers lifetime technical support for the N55 Pro. If you encounter any issues or have questions regarding the operation or functionality of your device, please contact our customer service team.
6.3 Customer Service
Our customer service team is available 24/7 to assist you. We aim to answer all inquiries within 24 hours to provide a worry-free communication experience. Please refer to the warranty card included in your package for specific contact details or visit the official DOOGEE website for support information.
