1. Introduction
This manual provides essential information for setting up, operating, and maintaining your UMIDIGI G100 Unlocked Cell Phone. The UMIDIGI G100 is a feature-rich Android 14 smartphone designed for a smooth and intuitive user experience. It boasts a large 6.9-inch 120Hz HD+ display, a powerful Octa-core processor, a versatile 50MP triple camera system, and a long-lasting 6000mAh battery.
Please read this manual thoroughly to ensure proper usage and to maximize the benefits of your new device.
2. What's in the Box
Upon unboxing your UMIDIGI G100, you should find the following items:
- UMIDIGI G100 Phone
- Protective Film (pre-applied)
- Phone Case
- Type-C Cable (C to C)
- Power Adapter
- SIM Tray Ejector
- Quick Start Guide

Image: Included accessories with the UMIDIGI G100 smartphone.
3. Setup
3.1 SIM Card and Micro SD Card Installation
The UMIDIGI G100 supports dual Nano-SIM cards or one Nano-SIM card and one Micro TF card (up to 1TB). Use the provided SIM tray ejector tool to open the SIM card slot.
- Locate the SIM tray on the side of the phone.
- Insert the SIM tray ejector tool into the small hole next to the tray and press gently until the tray pops out.
- Place your Nano-SIM card(s) and/or Micro TF card into the tray according to the diagram.
- Carefully reinsert the tray into the phone.

Image: Illustration of the dual SIM and TF card slots and supported network bands.
3.2 Initial Power On and Setup
Press and hold the power button on the side of the device until the UMIDIGI logo appears. Follow the on-screen instructions to complete the initial setup, including language selection, Wi-Fi connection, and Google account setup.
3.3 Security Features: Fingerprint and Face ID Unlock
Enhance your phone's security by setting up fingerprint and face recognition.
- Navigate to Settings > Security & privacy > Device unlock.
- Select Fingerprint Unlock and follow the prompts to register your fingerprint on the side-mounted sensor.
- Select AI Face Unlock and follow the prompts to register your face using the front camera.

Image: Visual representation of Face Unlock, Fingerprint Unlock, NFC, and Bluetooth 5.2 features.
3.4 Memory Extension
The UMIDIGI G100 features a memory extension function to expand RAM virtually. This can improve performance for demanding applications.
- Enter the phone Settings.
- Find Memory Extension.
- Select RAM Extend Size.
- Select Reboot and the phone will reboot for the setting to take effect.

Image: Step-by-step instructions for enabling memory extension on the device.
4. Operating the Device
4.1 Display and User Interface
The UMIDIGI G100 features a 6.9-inch HD+ display with a 120Hz refresh rate, providing a smooth visual experience. The device runs on Android 14, offering a user-friendly interface with enhanced privacy and security features.

Image: Key display specifications including size, refresh rate, resolution, and brightness.

Image: The Android 14 operating system interface with personalized settings.
4.2 Performance
Powered by an Octa-core UNISOC T615 processor, the UMIDIGI G100 ensures superior performance and faster fluidity. It comes with 6GB RAM (expandable to 12GB with virtual memory) and 128GB ROM (expandable up to 1TB via Micro SD card).

Image: Details of the UNISOC T615 Octa-Core processor and memory configurations.
4.3 Battery and Charging
The 6000mAh large battery provides extended usage. The device supports 20W fast charging via its Type-C port and also features OTG (On-The-Go) functionality for data transfer and charging other devices.

Image: Visual representation of the 6000mAh battery, 20W fast charging, and OTG capabilities.
4.4 Camera System
Capture high-quality photos and videos with the UMIDIGI G100's versatile camera setup:
- Rear Camera: 50MP Main Camera + 2MP Macro Camera + 2MP Depth Camera. Features include dual flash lights and independent focus.
- Front Camera: 16MP for selfies and portrait mode.
- Night Mode: Enhanced low-light photography.

Image: Overview of the multi-camera system and its components.

Image: Demonstration of the Night Mode feature, showing improved image quality in dark environments.
4.5 Connectivity
The UMIDIGI G100 offers comprehensive connectivity options:
- Network: Supports Dual 4G LTE, 3G WCDMA, and 2G GSM networks. Please verify compatibility with your carrier's bands before use.
- Wireless: Wi-Fi, Bluetooth 5.2.
- style="font-weight: bold;">NFC: Multi-function NFC for Google Pay and other contactless services.
- Navigation: GPS, Glonass, Galileo, Beidou for accurate positioning.
- Other: 3.5mm headphone jack, FM radio, G/L-Sensor, Virtual P-Sensor, Virtual Gyroscope.

Image: Supported global navigation satellite systems (GNSS) for precise location tracking.

Image: The NFC feature enabling contactless payments via Google Pay.

Image: Close-up of the 3.5mm headphone jack and USB Type-C charging port.
4.6 Audio
The UMIDIGI G100 features Smart Box Speaker technology for high-fidelity audio, enhancing your movie and gaming experience. It also includes dual speakers and dual microphones for clear calls.
5. Maintenance
To ensure the longevity and optimal performance of your UMIDIGI G100, follow these maintenance guidelines:
- Cleaning: Use a soft, lint-free cloth to clean the screen and body. Avoid harsh chemicals.
- Protection: Utilize the provided phone case and screen protector to guard against scratches and minor impacts.
- Software Updates: Regularly check for and install system updates to benefit from the latest features, security patches, and performance improvements. Android 14 includes cutting-edge privacy and security features.
- Battery Care: Avoid extreme temperatures. For optimal battery health, try to keep the charge between 20% and 80%.
6. Troubleshooting
If you encounter issues with your UMIDIGI G100, consider the following common solutions:
- Network Connectivity: Ensure your SIM card is correctly inserted and that your carrier's network bands are supported by the UMIDIGI G100. Check signal strength in your area.
- Device Unresponsive: Press and hold the power button for about 10-15 seconds to force a restart.
- App Issues: If an app is misbehaving, try clearing its cache and data in Settings > Apps. If the problem persists, reinstall the app.
- Charging Problems: Verify that the charging cable and adapter are securely connected and undamaged. Try a different outlet.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | G100 |
| Operating System | Android 14 |
| Screen Size | 6.9 Inches |
| Resolution | 1920 x 1080 (Note: Feature bullets state HD+ 1640x720, please refer to product packaging for exact resolution) |
| Refresh Rate | 120 Hz |
| RAM | 6 GB (Expandable to 12GB) |
| Memory Storage Capacity | 128 GB (Expandable up to 1TB via Micro TF card) |
| Rear Camera | 50MP Main + 2MP Macro + 2MP Depth |
| Front Camera | 16MP |
| Battery Capacity | 6000 mAh |
| Charging | 20W Fast Charge, Type-C |
| Connectivity | 4G LTE, 3G WCDMA, 2G GSM, Wi-Fi, Bluetooth 5.2, NFC, GPS |
| Security | Fingerprint & Face ID Unlock |
| Dimensions | 6.73 x 3.03 x 0.31 inches |
| Item Weight | 6.3 ounces |
8. Official Product Videos
UMIDIGI G100 Unlocked Cell Phone Android 14
Video: An overview of the UMIDIGI G100 Unlocked Cell Phone, highlighting its key features and design.
UMIDIGI G100 Unlocked Android Smartphone
Video: A detailed look at the UMIDIGI G100, showcasing its functionality and user experience.
9. Warranty and Support
UMIDIGI conducts strict inspections at every stage, from design to production. Customers can enjoy a 12-month free repair warranty and lifetime technical support when purchasing from the official UMIDIGI flagship store.
For further assistance or inquiries, please refer to the contact information provided in your Quick Start Guide or visit the official UMIDIGI website.





