Introduction
Thank you for choosing the SERVO F27 PRO 4G Button Smartphone. This manual provides a comprehensive guide to help you understand the device's usage, practical features, and user-friendly operation. Please read it thoroughly to ensure optimal performance and longevity of your device.
Video: Overview of the SERVO F27 PRO Smartphone features and design.
Safety Precautions
- Environmental Conditions: Avoid exposing the device to high temperatures (above 45°C) or humid environments to prevent damage.
- Screen Protection: Do not scratch the screen with sharp objects.
- Physical Damage: Avoid water exposure and dropping the phone.
- Software Security: Refrain from installing applications from untrusted sources to prevent viruses or information leakage.
Package Contents
Upon unpacking, please verify that all items listed below are present and in good condition:
- 1x Retail Box
- 1x SERVO F27 PRO Smartphone (including battery)
- 1x Type-C Charging Cable
- 1x User Manual (this document)
- 1x SIM Card Removal Pin

Image: Contents of the SERVO F27 PRO smartphone package.
Device Overview
Familiarize yourself with the physical components of your SERVO F27 PRO smartphone:

Image: Labeled diagram of the SERVO F27 PRO smartphone's external features.
- Flashlight: Located at the top edge.
- Receiver: Earpiece for calls, located above the screen.
- Front Camera: For selfies and video calls, located above the screen.
- Card Slot: For SIM and TF cards, located on the side.
- OK Button: Central button for selection.
- Left Function Key: Context-sensitive key, typically for menu options.
- Answer Key: Green button to accept calls.
- Right Function Key: Context-sensitive key, typically for back or options.
- Power On/Off: Button to power the device on or off.
- Navigation Keys: Up, Down, Left, Right for menu navigation.
- Headphone Jack: 3.5mm port for audio output.
- Type-C Charging Port: For charging and data transfer.
Setup Guide
1. Battery & Charging
Your SERVO F27 PRO is equipped with a 2850mAh battery. For optimal performance and to activate the battery, especially after prolonged storage, please follow these charging instructions:
- Use the original Type-C charging cable provided.
- Connect the cable to a 5V/2A power adapter. Do not use an adapter with a voltage exceeding 5V.
- If the device does not power on after a long period of non-use, charge it for more than 4 hours to activate the battery.
- The operating temperature range for charging and use is 5°C to 45°C.

Image: Charging the SERVO F27 PRO smartphone via Type-C interface.
2. SIM Card Installation
The SERVO F27 PRO supports dual Nano SIM cards and one TF memory card. Follow these steps to install your SIM card(s):
- Locate the SIM card slot on the side of the phone (refer to Device Overview diagram).
- Use the provided SIM card removal pin to gently eject the SIM tray.
- Place your Nano SIM card(s) and/or TF memory card into the designated slots on the tray. Ensure correct orientation.
- Carefully reinsert the tray into the phone.
- Important: Use only Nano SIM cards. Do not use self-cut SIM cards or SIM cards from Mobile Virtual Network Operators (MVNOs) as this may damage the phone or cause network issues.
- Note: Some SIM cards may require VoLTE service to be activated by your network operator for full functionality.

Image: Dual SIM and TF card installation for 4G LTE connectivity.
Operation Guide
1. Power On/Off & Unlocking
- Power On: Long-press the Power On/Off button (refer to Device Overview).
- Power Off: Long-press the Power On/Off button and select "Power Off" from the options.
- Unlocking: To unlock the screen, you can either swipe the screen or press the top-left side button and the '*' key simultaneously. The phone supports password unlock.
2. Navigation & Basic Functions
- Physical Buttons: The phone features large physical buttons for crisp and effortless pressing.
- Touch Display: The 3.5-inch HD screen supports touch operation for flexible app opening.
- Adjusting Volume: During a call or while using multimedia functions, press the '*' and '#' keys to adjust the volume.
- Switching Input Methods: While editing a message, press the '#' key to toggle between input methods on the physical keyboard.
- Accessing Background Tasks: Long-press the Back key to clear all background applications at once, improving performance.

Image: High definition 3.5-inch touch screen and physical buttons.
3. Communication
- Making Calls: Use the dial pad to enter numbers. Press the green Answer Key to initiate a call.
- Speed Dial: Assign frequently contacted numbers to one of the number keys 2 through 9 as a shortcut. Once successfully added, long-press the corresponding number key to make a call.
- Messaging: Access the messaging application to send and receive text messages.
- 4G Network: The phone supports 4G LTE high-speed network, ensuring no lag in calls and internet access.

Image: Quick dialing feature for one-click contact.
4. Camera Usage
The SERVO F27 PRO features dual front (2 MP) and rear (5 MP) cameras, suitable for daily shooting scenarios, videos, and selfies.
- Open the Camera app from the home screen or app drawer.
- Switch between front and rear cameras as needed.
- Tap the shutter button to take photos or start/stop video recording.
5. Multimedia & Storage
Enjoy audio and video playback on your device. The phone comes with 2GB RAM and 16GB ROM, and supports SD card expansion for additional storage.
- Audio/Video Playback: Use the built-in media players to enjoy your content.
- Expandable Memory: Insert an SD card into the TF memory card slot to expand storage for photos, music, and videos.

Image: Expandable memory for software and photos.
6. Additional Features
- Flashlight: The side of the body is designed with a flashlight shortcut button. Press it to turn on/off the flashlight.
- GPS Navigation: Use the built-in GPS for real-time location and navigation.
- WiFi Connectivity: Connect to WiFi networks for internet access.
- Bluetooth: Supports Bluetooth for connecting headphones and other accessories.
- Google Play Store: Built-in Google Play Store allows direct download of various genuine apps and tools.
System Settings
To customize your device or manage system functions:
- Language & Input Method: Adjust these settings under 'Settings' > 'System'.
- Factory Reset: If incorrect settings cause issues, you can reset the device via 'Settings' > 'System' > 'Reset Options' > 'Erase All Data (Factory Reset)'. This will erase all data on the phone and restore it to its original factory state.
Maintenance
To ensure the longevity and optimal performance of your SERVO F27 PRO smartphone, follow these maintenance guidelines:
- Cleaning: Use a soft, lint-free cloth to clean the screen and body of the phone. Avoid using harsh chemicals or abrasive materials.
- Software Updates: Regularly check for and install system updates to ensure your device has the latest features and security patches.
- Battery Care: Avoid extreme temperatures when charging or using the phone. Do not leave the phone charging for excessively long periods after it's fully charged.
- Storage Management: Periodically clear unnecessary files and applications to free up storage space and maintain smooth operation.
Troubleshooting
Here are solutions to some common issues you might encounter:
- Q: The phone does not turn on after charging.
- A: If the mobile phone has not been used for a long time, the battery power will be consumed. If it cannot be turned on, you need to charge the mobile phone for 3-5 hours first. Please use the charging cable configured with this product and a charger that supports 5V1A to charge the phone.
- Q: Network connectivity issues in certain regions.
- A: Due to network frequency band differences, the mobile phone may not be used normally in some countries (e.g., Colombia, India, Türkiye, Chile, Azerbaijan, Tanzania, Australia). Please verify network compatibility with your local service provider before use.
- Q: Physical buttons do not support certain input methods.
- A: The physical buttons on this phone do not support Korean, Japanese, and Chinese input methods. Please use the touch screen for these languages or alternative input methods if available.
Specifications
| Feature | Detail |
|---|---|
| Model | F27 PRO |
| Color | Black |
| Dimensions (L×W×H) | 145.6mm × 63mm × 15mm |
| Weight | 145g |
| CPU | MT6739WA |
| Operating System | Android 11.0 Version |
| Screen Size | 3.5 inch HD Screen |
| Display Resolution | 320*480 |
| Rear Camera | 5 MP |
| Front Camera | 2 MP |
| SIM Card Quantity | 2 Nano SIM cards + 1x TF Memory Card |
| Memory | 2GB RAM / 16GB ROM (supports SD card expansion) |
| Phone SMS Capacity | 1000+ |
| Battery Capacity | 2850mAh |
| Charging Interface | Type-C |
| Bluetooth | Support |
| Audio Playback | Support |
| Video Playback | Support |
| Wi-Fi | Support |
| GPS | Support |
| Phone Unlock | Password unlock |
| 3.5mm Headphone Port | Support |
| NFC | No support |
| 2G Networks | GSM850/900/1800/1900 |
| 3G Networks | WCDMA/B1/B2/B5/B8 |
| 4G FDD Networks | B1/B2/B3/B5/B7/B8/B20 |
| 4G TDD Networks | B34/B38/B39/B40/B41 |
| Supported Languages | Multi-languages (Note: Physical buttons do not support Korean, Japanese, and Chinese input methods) |
User Tips
- Initial Charge: For the first use, ensure the phone is charged for 3-5 hours to fully activate the battery, especially if it has been stored for a long time. Always use a 5V1A charger with the provided Type-C cable.
- Network Compatibility: Before traveling or using in a new region, confirm that the phone's supported network bands (2G, 3G, 4G FDD, 4G TDD) are compatible with local carriers to avoid connectivity issues.
- Input Method Limitation: Be aware that the physical buttons do not support Korean, Japanese, and Chinese input methods. For these languages, utilize the touch screen or other available software input options.
Warranty and Support
For any questions, technical assistance, or support regarding your SERVO F27 PRO smartphone, please refer to the contact information provided by your retailer or the manufacturer's official support channels. Keep your purchase receipt for warranty purposes.
Please keep this manual in a safe place for future reference.





