1. Introduction
Welcome to the user manual for your new DOOGEE Blade20 Rugged Phone. This device is designed for durability and high performance, featuring the latest Android 15 OS, Gemini AI capabilities, a massive 10300mAh battery, and a vibrant 6.6-inch HD+ display. It is built to withstand challenging environments with IP68/IP69K and MIL-STD-810H certifications. This manual provides essential information on setting up, operating, maintaining, and troubleshooting your device to ensure optimal performance and longevity.

2. Package Contents
Ensure all items are present in your product box:
- 1 x DOOGEE Blade20 Rugged Phone
- 1 x Type-C Cable
- 1 x 18W Charger
- 1 x Thicken Protective film
- 1 x Packing Box
- 1 x User Manual
- 1 x Warranty Card

3. Specifications
| Feature | Description |
|---|---|
| Processor | Unisoc T7200 Octa Core 1.6GHz 12nm |
| Operating System | Android 15 |
| Display | 6.6-inch HD+ IPS Notch-less Punch Display, 90Hz Refresh Rate, 720 x 1612 Resolution, 84% Visual Screen Ratio, 16.7 Million Colors, 1500:1 Contrast, 380cd/m2 Brightness |
| RAM | 4GB (expandable up to 16GB virtual RAM) |
| Internal Storage | 128GB ROM (expandable up to 2TB via TF card) |
| Rear Camera | 16MP AI Main Camera + 2MP Macro Camera |
| Front Camera | 8MP |
| Battery | 10300mAh, 18W Fast Charging |
| Dimensions | 174mm x 81.2mm x 15.8mm |
| SIM Card Slot | Triple Card Slot (2 SIM Cards + 1 TF Card) |
| Connectivity | Wi-Fi 2.4G/5G (802.11ac/a/b/g/n), Bluetooth 5.0, NFC |
| Navigation | GPS, Glonass, Galileo, Beidou |
| Durability | IP68/IP69K, MIL-STD-810H (Water-proof, Drop-proof, Dust-proof) |
| Security | Side-Mounted Fingerprint, Face Recognition |
| Other Features | Custom Button, Glove Mode 2.0, Reverse Charging |

4. Initial Setup
4.1. Inserting SIM Cards and TF Card
- Locate the SIM card tray on the side of the phone.
- Use the provided SIM ejector tool to open the tray.
- Carefully place your Nano-SIM cards and/or TF card into the designated slots. The Blade20 supports two SIM cards and one TF card simultaneously.
- Gently push the tray back into the phone until it clicks into place.

4.2. Charging the Device
Before first use, fully charge your DOOGEE Blade20 using the included 18W charger and Type-C cable.
- Connect the Type-C cable to the phone's charging port.
- Plug the 18W charger into a power outlet.
- The charging indicator will appear on the screen.
The 10300mAh battery provides extended usage, and with 18W fast charging, you can quickly power up your device.

4.3. Power On/Off
- Power On: Press and hold the Power button until the DOOGEE logo appears.
- Power Off: Press and hold the Power button, then select 'Power off' from the options.
5. Operating Your DOOGEE Blade20
5.1. Display and Navigation
The 6.6-inch HD+ 90Hz Notch-less Punch Display offers a seamless visual experience. Navigate through the Android 15 interface with intuitive gestures and on-screen controls.

5.2. Camera Features
Capture valuable moments with the versatile camera system:
- 16MP AI Main Camera: For high-resolution photos.
- 2MP Macro Camera: For detailed close-up shots.
- 8MP Front Camera: For clear selfies and video calls.
- Underwater Camera Mode: Allows you to take photos and videos while submerged in water, leveraging the phone's waterproof capabilities.

5.3. Gemini AI Capabilities
The built-in Gemini AI enhances your work and life with several intelligent functions:
- Content Creation: Assists in generating creative content.
- Image Analysis: Object recognition, scene understanding, visual relationship reasoning, text extraction, and image understanding.
- Code Development: Helps write code, explains logic, debugs errors, and provides optimization suggestions.
- Language Learning: Supports various languages for learning and translation.
- Smart Assistant: Acts as a versatile assistant for real-time weather, encyclopedia questions, historical events, and daily troubleshooting.
- Gemini Live: Advanced voice engine for natural multi-round conversations, offering real-time speaking pattern adaptation and ten voice options.






5.4. NFC Functionality
The Blade20 supports NFC (Near Field Communication) for convenient tasks such as mobile payments, quick pairing with accessories, and data transfer.

5.5. Navigation
The device integrates multiple global navigation satellite systems (GPS, Glonass, Galileo, Beidou) for accurate positioning and reliable navigation.

5.6. Security Features
Unlock your phone securely and conveniently using:
- Side-Mounted Fingerprint Sensor: A quick and secure way to unlock your device.
- Face Recognition: Unlock your phone using your face.

5.7. Custom Button
The side custom button can be configured for quick access to various functions:
- Single Click: Enter into a pre-selected app.
- Double Click: Take a screenshot.
- Long Press: Activate the flashlight.

5.8. Glove Mode 2.0
The enhanced Glove Mode 2.0 increases touch sensitivity by 30%, allowing you to operate the phone effectively while wearing gloves, useful for various outdoor activities or work environments.

5.9. Reverse Charging
The Blade20 can act as an emergency power bank, allowing you to charge other devices using its large 10300mAh battery.

5.10. Other Software Features
The Blade20 offers a range of additional software enhancements for a smoother user experience:
- Smart Sensing: Motion-sensing answering, incoming call ringing, incoming call muting.
- Dual System Mode: Allows for multiple user profiles and guest modes.
- Super Clipboard: Enhanced clipboard functionality.
- App Cloning: Run multiple instances of an app.
- Split-screen Mode: Use two apps simultaneously.
- Video Display Enhancement: Improves video quality.
- Real-time Subtitles: Provides real-time captions for media.
- Strengthen Safeguarding: Enhanced security and privacy features.

6. Maintenance and Durability
6.1. Rugged Design
The DOOGEE Blade20 is built with a sturdy aluminum titanium alloy frame and designed to be thin yet tough. It boasts IP68/IP69K and MIL-STD-810H certifications, ensuring resistance against water, dust, and drops.


6.2. Tested Durability
The device has undergone rigorous testing to ensure its ruggedness:
- 300+ Times Tumble Test
- 8000+ Mini Times Drop Test
- 16+ Times Violent Drop Test
- 24 Hours Water Submerged Test
Note: The data is tested in Doogee's Laboratory for reference only.

6.3. General Care
- Clean the screen and body with a soft, damp cloth.
- Avoid using harsh chemicals or abrasive materials.
- Ensure all port covers are securely closed to maintain water and dust resistance.
- Do not attempt to disassemble the device, as this will void the warranty and may cause damage.
7. Troubleshooting
7.1. Common Issues
- Device not turning on: Ensure the battery is charged. Connect the charger and wait a few minutes before attempting to power on again.
- Poor network signal: Check if your SIM card is correctly inserted. Verify network compatibility with your local carrier. Move to an area with better network coverage.
- Apps crashing: Clear the cache of the problematic app or reinstall it. If the issue persists, perform a factory reset (back up your data first).
- Touchscreen unresponsive: Restart the device. If the issue continues, contact support.
7.2. Contacting Support
If you encounter any problems that cannot be resolved using this manual, please contact DOOGEE customer service through AliExpress chat. Our professional customer service and technical support staff are ready to assist you.
8. User Tips
- Network Compatibility: Before purchasing or traveling, verify that the phone's cellular bands (GSM, WCDMA, TDD, FDD) are compatible with your local network providers to ensure full functionality.
- Battery Optimization: To maximize the 10300mAh battery life, manage background app usage and adjust screen brightness.
- Custom Button Utility: Program the custom button for frequently used apps or functions like the flashlight for quick access in various situations.
9. Warranty and Support
Your DOOGEE Blade20 comes with a 1-year warranty. Please refer to the included Warranty Card for detailed terms and conditions. For technical assistance or service inquiries, please contact DOOGEE Official Store support via the platform where you purchased the device.