1. Introduction
Welcome to the DOOGEE N55 Smartphone User Manual. This guide provides essential information on setting up, operating, maintaining, and troubleshooting your new device. The DOOGEE N55 is a feature-rich smartphone designed for seamless performance and an enhanced user experience, running on the latest Android 14 operating system.
Key features include a vibrant 6.56-inch 90Hz IPS display, a powerful Octa-Core processor, 9GB RAM (4GB + up to 5GB extended RAM), 128GB ROM with up to 1TB expandable storage, a long-lasting 5150mAh battery, and advanced camera capabilities with a 13MP AI main camera and an 8MP front camera. It also supports Face Unlock and Widevine L1 for high-definition streaming.
2. Package Contents
Please check the box for the following items:
- 1 x DOOGEE N55 Smartphone
- 1 x Type-C Port Cable
- 1 x Charger
- 1 x TP Protective Film (pre-applied)
- 1 x TPU Protective Case
- 1 x SIM Card Pin
- 1 x User Manual (this document)
- 1 x Warranty Card

Image showing the DOOGEE N55 smartphone and its included accessories.
3. Specifications
| Feature | Detail |
|---|---|
| Brand Name | DOOGEE |
| Model | N55 |
| Operating System | Android 14.0 |
| CPU Model | UNISOC T606 / Octa Core / 1.6GHz / 12nm |
| RAM | 9GB (4GB + up to 5GB Extended RAM) |
| ROM | 128GB |
| Expandable Storage | Up to 1TB (via TF card, purchased separately) |
| Display Size | 6.56 inch |
| Display Type | HD+ IPS Waterdrop Screen |
| Screen Refresh Rate | 90Hz |
| Display Resolution | 720 x 1612 |
| Aspect Ratio | 20:9 |
| Screen-to-Body Ratio | 90% |
| Colors | 16.7 million |
| Brightness | 350cd/㎡ |
| Contrast | 1500:1 |
| Touch Screen | Yes |
| Rear Camera | 13MP AI Main Camera (2 cameras total) |
| Front Camera | 8MP (1 camera total) |
| Battery Capacity | 5150mAh |
| Battery Type | Not Detachable |
| Charging Interface Type | Type-C |
| Wireless Charging | No |
| 3.5mm Headphone Port | No |
| SIM Card Quantity | 2 SIM Card (nano SIM1 + nano SIM2 OR nano SIM + TF card) |
| Network Bands | GSM: B2/3/5/8; WCDMAB: 1/2/4/5/8; TDD: 38/40/41; FDD: B1/2/3/4/5/7/8/18/19/20/25/26/28A/28B/66 (Support EDGE/GPRS) |
| Wi-Fi | 2.4G/5G (802.11ac/a/b/g/n) |
| Bluetooth Version | BT5.0 |
| FM Radio | Support |
| OTG | Support |
| Navigation | GPS, Glonass, Galileo, Beidou (Built-in GPS: Yes) |
| Biometrics Technology | Face Recognition |
| Weight | 186g (Ultra-Lightweight) |
| Thickness | 8.6mm (Ultra-Thin) |
| Colors Available | Graphite Black, Natural Color |
| Widevine L1 Support | Yes |
4. Initial Setup
4.1 Inserting SIM Cards and TF Card
The DOOGEE N55 supports dual Nano-SIM cards or one Nano-SIM card and one TF (microSD) card for expandable storage. Use the provided SIM card pin to open the SIM tray.
- Locate the SIM tray on the side of your phone.
- Insert the SIM card pin into the small hole next to the tray and push gently until the tray ejects.
- Carefully pull out the tray.
- Place your Nano-SIM card(s) and/or TF card into the designated slots on the tray. Ensure the gold contacts are facing down and the cards are correctly oriented.
- Gently push the tray back into the phone until it clicks into place.

Illustration of the SIM card tray and proper insertion of SIM and TF cards.
4.2 Charging the Battery
Before first use, it is recommended to fully charge your DOOGEE N55. Use the provided Type-C cable and charger.
- Connect the Type-C cable to the charging port at the bottom of your phone.
- Connect the other end of the cable to the charger, and then plug the charger into a power outlet.
- The charging indicator will appear on the screen.
The 5150mAh large battery provides long-lasting usage. The phone features self-developed intelligent battery management that supports charging even at temperatures above -10°C.

The DOOGEE N55 connected to its charger, emphasizing its large battery.
4.3 Powering On/Off
- To Power On: Press and hold the Power button (usually on the right side) until the DOOGEE logo appears.
- To Power Off: Press and hold the Power button, then select "Power off" from the options on the screen.
4.4 Applying Protective Film and Case
Your DOOGEE N55 comes with a pre-applied TP protective film and a TPU protective case to safeguard your device.
- The TP protective film is already on the screen.
- Carefully place your phone into the TPU protective case to ensure a snug fit and protection against drops and scratches.
5. Operating Your DOOGEE N55
5.1 Android 14 OS
The DOOGEE N55 runs on the latest Android 14 operating system, offering a seamless and efficient user experience. Android 14 includes enhanced privacy and security features, allowing for personalized settings to protect your data.

Android 14 features like Privacy Control and Intelligent Management for optimized performance.
5.2 Face Unlock
For quick and secure access, the DOOGEE N55 supports Face Unlock technology. Set up your face recognition in the security settings to unlock your phone with a glance.

The DOOGEE N55 utilizing Face Unlock for instant access.
5.3 Camera Usage
Capture stunning photos and videos with the DOOGEE N55's camera system:
- 13MP AI Main Camera: The rear camera allows you to take high-quality images with AI enhancements.
- 8MP Front Camera: Perfect for selfies and video calls, capturing vibrant details.

The 13MP AI Main Camera of the DOOGEE N55.

The 8MP Front Camera capturing clear selfies.
5.4 Navigation System
The DOOGEE N55 features an accurate navigation system supporting GPS, Glonass, Galileo, and Beidou, ensuring precise directions wherever you go.

The DOOGEE N55 providing accurate navigation with multi-system support.
5.5 Multimedia and Widevine L1
Enjoy high-definition video streaming on platforms like Netflix, Amazon Prime Video, and Hulu thanks to Widevine L1 support. The 6.56" HD+ 90Hz IPS Waterdrop Screen provides an immersive viewing experience with vibrant colors and high contrast.

The DOOGEE N55 screen showcasing its visual quality and Widevine L1 compatibility.
6. Care and Maintenance
6.1 General Care
- Keep your phone dry. Moisture can damage the device.
- Avoid extreme temperatures. High or low temperatures can shorten the life of electronic devices.
- Do not drop, knock, or shake the phone. Rough handling can break internal circuit boards.
- Use only approved accessories.
6.2 Screen Maintenance
The DOOGEE N55 features a screen with vacuum coating for enhanced durability and cleanliness.
- Anti-fingerprint: Significantly minimizes fingerprint residue.
- Anti-oil Stains: Effectively repels grease and stains.
- Abrasive Resistance: Provides durability against scratches.
- Transparency: Maintains screen clarity and color accuracy.
To clean the screen, gently wipe it with a soft, lint-free cloth. Avoid using harsh chemicals.

Features of the DOOGEE N55's vacuum-coated screen for improved durability and clarity.
6.3 Battery Care
To prolong the life of your 5150mAh battery:
- Avoid fully discharging the battery frequently.
- Do not expose the phone to direct sunlight or very hot environments for extended periods.
- The intelligent battery management system supports charging in cold conditions (above -10°C).

The DOOGEE N55's intelligent battery management system in action.
7. Troubleshooting
If you encounter issues with your DOOGEE N55, please refer to the following common solutions:
- Device not powering on: Ensure the battery is charged. Connect the charger and wait a few minutes before attempting to power on again.
- Network connectivity issues:
- Check if your SIM card is correctly inserted.
- Verify that your network provider's bands are compatible with the DOOGEE N55 (GSM: B2/3/5/8; WCDMAB: 1/2/4/5/8; TDD: 38/40/41; FDD: B1/2/3/4/5/7/8/18/19/20/25/26/28A/28B/66).
- Restart your phone.
- Slow performance:
- Close unnecessary background applications.
- Clear cache from apps.
- Ensure you have sufficient storage space.
- The Octa-Core processor and 9GB RAM are designed for smooth performance, but heavy usage can still impact speed.
- Screen size discrepancy: The actual screen size of the DOOGEE N55 is 6.56 inches, as stated in the specifications.
If problems persist, please contact customer service for further assistance.
8. User Tips
- Check Network Compatibility: Before purchasing or traveling, always confirm that your local network bands are compatible with the DOOGEE N55's supported frequencies (GSM, WCDMAB, TDD, FDD bands listed in specifications).
- Utilize Android 14 Privacy Features: Explore the enhanced privacy controls and intelligent management features in Android 14 to customize your security settings and optimize app performance.
- Expand Storage: If you plan to store a large number of photos, videos, or apps, consider adding a TF (microSD) card to utilize the expandable storage up to 1TB.
- Optimize Battery Life: To maximize the 5150mAh battery life, manage background app usage and adjust screen brightness.
9. Warranty and Support
9.1 Warranty Information
The DOOGEE N55 smartphone comes with a 1-year warranty from the date of purchase. Please refer to the included Warranty Card for detailed terms and conditions. Keep your proof of purchase for warranty claims.
9.2 Customer Support
For any technical issues, questions, or support needs not covered in this manual, please contact DOOGEE customer service. You can typically find contact information on the official DOOGEE website or through the seller from whom you purchased the device.
When contacting support, please have your product model (N55) and purchase details ready.






