1. Introduction
This manual provides essential information for the safe and efficient use of your FOSSiBOT F101 Pro rugged smartphone. Please read this manual thoroughly before operating the device to ensure proper functionality and to prevent damage. Keep this manual for future reference.
2. Package Contents
Verify that all items are present in your product package:
- FOSSiBOT F101 Pro Rugged Smartphone
- USB Cable
- Power Adapter
- User Manual
- SIM Card Pin Ejector

Image: Contents of the FOSSiBOT F101 Pro retail package.
3. Device Overview
The FOSSiBOT F101 Pro features a robust design with a main display and a unique rear display for enhanced functionality.
3.1 Main Display
The 5.45-inch HD+ (720 x 1440) main display provides clear visuals and is designed for high shock resistance. It features an 18:9 aspect ratio and anti-scratch tough Dragontrail Glass.

Image: Detailed view of the 5.45-inch HD+ main display and its specifications.
3.2 Rear Display
The 1.32-inch rear display offers quick access to various functions without needing to activate the main screen. It can be customized with 16 different watch designs and provides features such as:
- Taking selfies with the rear camera
- Answering or rejecting calls
- Checking time and date
- Viewing notifications
- Controlling music playback
- Monitoring battery level
- Using as a compass

Image: The multi-functional rear display with icons for calls, camera, music, and battery status.

Image: A selection of 16 customizable watch designs for the rear display.
4. Initial Setup
4.1 SIM and SD Card Installation
The FOSSiBOT F101 Pro supports dual Nano-SIM cards or one Nano-SIM card and one MicroSD card (up to 1TB). To install:
- Locate the SIM card tray on the side of the device.
- Insert the SIM ejector tool into the small hole next to the tray and press firmly until the tray pops out.
- Place your Nano-SIM card(s) and/or MicroSD card into the designated slots on the tray, ensuring correct orientation.
- Carefully push the tray back into the device until it clicks into place. Ensure the tray is fully sealed to maintain water and dust resistance.

Image: Close-up of the waterproof SIM card compartment and reinforced anti-drop corners.
4.2 Powering On and Initial Configuration
To power on your device, press and hold the Power button until the FOSSiBOT logo appears. Follow the on-screen prompts to complete the initial setup, including selecting your language, connecting to Wi-Fi, and setting up your Google account.
5. Operating Instructions
5.1 Power On/Off and Restart
- Power On: Press and hold the Power button until the device vibrates and the logo appears.
- Power Off: Press and hold the Power button, then select "Power off" from the options.
- Restart: Press and hold the Power button, then select "Restart" from the options.
5.2 Screen Lock and Unlock
The F101 Pro supports fingerprint and face recognition for secure unlocking.
- Fingerprint Unlock: Register your fingerprint in the Security settings. Lightly touch the fingerprint sensor to unlock the device.
- Face ID Unlock: Register your face in the Security settings. Look at the front camera to unlock the device.

Image: Illustration of fingerprint and Face ID unlocking methods.
5.3 Processor and Performance
The FOSSiBOT F101 Pro is equipped with a MediaTek MT8788 Octa-core processor and 15GB RAM (8GB physical + 7GB virtual), ensuring smooth performance for gaming, multitasking, and resource-intensive applications.

Image: Visual representation of the MediaTek MT8788 Octa-core processor and memory configuration.
6. Camera Features
The F101 Pro features a versatile triple camera system to capture various moments.
6.1 Rear Camera (24MP)
The 24MP main rear camera captures detailed and vibrant photos. It supports various shooting modes including Automatic, High Dynamic Range (HDR), Macro, Night Mode, Panorama, Portrait, and Sport.

Image: Sample images demonstrating the capabilities of the 24MP rear camera.
6.2 Front Camera (8MP)
The 8MP front camera is ideal for clear selfies and video calls.

Image: An example of a selfie taken with the 8MP front camera.
6.3 Macro Camera (5MP)
The 5MP macro camera allows you to capture intricate details in close-up shots.

Image: A macro shot of a butterfly on a flower, highlighting the detail captured by the 5MP macro camera.
6.4 Rear Display for Selfies
Utilize the 1.32-inch rear display to frame your selfies when using the higher-resolution 24MP rear camera.

Image: A user taking a selfie with the main rear camera, using the small rear display as a viewfinder.
7. Battery Management
7.1 Charging
The F101 Pro is equipped with a 10600 mAh battery and supports 18W fast charging. Use the provided power adapter and USB cable for optimal charging performance. A full charge takes approximately 2 hours.

Image: Illustration of the 10600 mAh battery and its estimated usage duration for various activities.
7.2 OTG Reverse Charging
The device supports OTG (On-The-Go) reverse charging, allowing you to use your F101 Pro as a power bank to charge other compatible electronic devices.

Image: The FOSSiBOT F101 Pro charging another smartphone via OTG reverse charging.
8. Durability Features
The FOSSiBOT F101 Pro is built to withstand harsh environments, making it suitable for outdoor activities and demanding workplaces.
8.1 IP68/IP69K Water and Dust Resistance
The device is certified IP68 and IP69K, meaning it is:
- Waterproof up to 1.5 meters depth for 2 hours.
- Fully dustproof, protecting against ingress of dust and fine particles.
8.2 MIL-STD-810H Drop Resistance
The F101 Pro meets MIL-STD-810H military standards for durability, making it drop-resistant from heights of up to 1.5 meters.

Image: Visual representation of the phone's water, dust, and drop resistance capabilities.
8.3 Robust Construction
The phone features CNC processing and reinforced anti-drop rubber corners to enhance its ruggedness and protect against impacts.
9. Maintenance
- Cleaning: Use a soft, damp cloth to clean the device. Avoid harsh chemicals or abrasive materials.
- Water Resistance: Ensure all port covers (USB-C, SIM tray) are securely closed to maintain water and dust resistance. Do not intentionally submerge the device in water beyond its rated limits.
- Temperature: Avoid exposing the device to extreme temperatures (very hot or very cold) as this can affect battery life and performance.
10. Troubleshooting
| Issue | Possible Solution |
|---|---|
| Device does not power on | Ensure the battery is charged. Connect to the charger for at least 10 minutes, then try powering on again. |
| Poor network signal | Check if SIM card is correctly inserted. Move to an area with better network coverage. Restart the device. |
| Battery drains quickly | Close unused apps running in the background. Reduce screen brightness. Disable Wi-Fi, Bluetooth, or GPS when not in use. |
| Touchscreen unresponsive | Restart the device. If the issue persists, perform a factory reset (backup data first). |
| Cannot connect to Wi-Fi | Ensure Wi-Fi is enabled. Check Wi-Fi password. Restart your router and the phone. |
11. Specifications
| Feature | Detail |
|---|---|
| Brand | FOSSiBOT |
| Model Name | FOSSiBOT F101 Pro |
| Operating System | Android 13.0 |
| RAM | 15 GB (8GB physical + 7GB virtual) |
| Storage Capacity | 128 GB (expandable up to 1 TB via MicroSD) |
| CPU Model | MediaTek Kompanio 800T (Octa-core) |
| Main Screen Size | 5.45 Inches |
| Main Screen Resolution | 720 x 1440 pixels (HD+) |
| Rear Screen Size | 1.32 Inches |
| Rear Camera Resolution | 24 MP |
| Front Camera Resolution | 8 MP |
| Macro Camera Resolution | 5 MP |
| Battery Capacity | 10600 mAh |
| Charging Time | Approx. 2 Hours (with 18W fast charging) |
| SIM Card Slots | Dual SIM (Nano-SIM) |
| Connectivity | 4G, 3G, GSM, Bluetooth, NFC, USB Type-C |
| Navigation | GPS |
| Durability | IP68, IP69K (Waterproof, Dustproof), MIL-STD-810H (Drop-resistant) |
| Biometric Security | Fingerprint, Face Recognition |
| Product Dimensions | 75.57 x 7.62 x 2.03 cm; 610 g |
12. Warranty and Support
The FOSSiBOT F101 Pro comes with a 2-year warranty. For technical assistance, troubleshooting, or warranty claims, please contact FOSSiBOT customer service. 24/7 customer support is available to assist you.


