1. Introduction
Welcome to the FOSSIBOT S5 Pro user manual. This guide provides essential information to help you set up, operate, maintain, and troubleshoot your new Android 15 smartphone. The FOSSIBOT S5 Pro combines powerful performance with a durable design, featuring a large display, advanced camera system, and long-lasting battery.
2. What's in the Box
Upon opening your FOSSIBOT S5 Pro package, please ensure all items are present:
- 1 x FOSSIBOT S5 Pro Cellphone
- 1 x User Manual & Warranty Card
- 1 x SIM Card Pin
- 1 x USB Cable (Type-C, 2A)
- 1 x Power Adapter (5V2A)
- 1 x Protective Case
- 1 x Quick Start Guide
Image: Contents of the FOSSIBOT S5 Pro retail package, including the phone, charger, cable, and documentation.
3. Initial Setup
3.1. SIM Card Installation
- Locate the SIM card tray on the side of your FOSSIBOT S5 Pro.
- Insert the provided SIM card pin into the small hole next to the tray and gently push until the tray ejects.
- Place your Nano-SIM card(s) and/or microSD card (up to 2TB) into the tray, ensuring correct orientation.
- Carefully reinsert the tray into the phone.
Note: The FOSSIBOT S5 Pro supports Dual SIM functionality. It is compatible with T-Mobile but not AT&T SIM cards. Supported frequency bands include GSM 850/900/1800/1900, WCDMA B1/2/4/5/8, FDD B1/2/3/4/5/7/8/12/17/18/19/20/25/26/28AB/66, and TDD 38/39/40/41.
Image: Close-up of the FOSSIBOT S5 Pro's SIM card tray, showing slots for two Nano-SIM cards and a microSD card for expandable storage up to 2TB.
3.2. Initial Charging
Before first use, it is recommended to fully charge your device. Connect the USB cable to the phone's Type-C port and the power adapter, then plug the adapter into a wall outlet. The 6000mAh battery provides extended usage time.
Image: Illustration of the FOSSIBOT S5 Pro's internal battery, highlighting its 6000mAh capacity and charging capabilities.
3.3. Power On/Off
- To power on: Press and hold the Power button (usually on the right side) until the FOSSIBOT logo appears.
- To power off: Press and hold the Power button, then select "Power off" from the options on the screen.
4. Operating Your Device
4.1. Display and User Interface
The FOSSIBOT S5 Pro features a 6.88-inch HD+ display with a resolution of 720x1640 pixels and a 120Hz refresh rate for smooth visuals. It runs on the native Android 15 operating system, offering a cutting-edge and intuitive user experience.
Image: The FOSSIBOT S5 Pro's 6.88-inch HD+ display with a 120Hz refresh rate, showcasing vibrant visuals.
Image: The FOSSIBOT S5 Pro displaying the Android 15 user interface with various applications.
4.2. Performance and Storage
Equipped with 32GB of RAM (8GB physical + 24GB virtual) and 256GB of internal storage, expandable up to 2TB via microSD, the S5 Pro handles multitasking and demanding applications with ease. The Octa-core Unisoc T615 processor ensures smooth operation.
Image: Visual representation of the FOSSIBOT S5 Pro's performance, highlighting 32GB RAM, 256GB ROM, and the Unisoc Octa-core processor.
4.3. Camera System
Capture high-quality photos and videos with the 50MP primary camera and 8MP ultra-wide dual-camera setup. The phone supports 4K HDR video recording and features enhanced night photography. The 8MP front camera is ideal for clear selfies and video calls.
Image: The FOSSIBOT S5 Pro's rear camera module with 50MP main sensor and 8MP front camera, demonstrating photo capabilities.
4.4. Gemini AI Features
The integrated Gemini AI 2026 localized model offers advanced smart experiences, including real-time multilingual translation, intelligent image composition, and document scanning.
Image: Examples of Gemini AI features on the FOSSIBOT S5 Pro, such as smart chat, image creation, video creation, and coding assistance.
4.5. Security and Connectivity
Unlock your device quickly and securely using the fingerprint unlock feature. The S5 Pro supports Bluetooth, USB, Wi-Fi 6, and GPS+GLONASS+Beidou+Galileo for reliable navigation and connectivity.
5. Maintenance
5.1. Durability and Protection
The FOSSIBOT S5 Pro boasts IP68 water and dust resistance, making it suitable for outdoor use and protection against splashes and dust. While durable, avoid intentional submersion or exposure to high-pressure water jets.
5.2. General Care
- Keep your device clean by wiping it with a soft, dry cloth.
- Avoid exposing the phone to extreme temperatures or direct sunlight for prolonged periods.
- Use only FOSSIBOT-approved accessories for charging and connectivity.
6. Troubleshooting
If you encounter issues with your FOSSIBOT S5 Pro, try the following basic troubleshooting steps:
- Device unresponsive: Press and hold the Power button for about 10-15 seconds to force a restart.
- Charging issues: Ensure the USB cable and power adapter are securely connected and functioning correctly. Try a different outlet or charger.
- Network connectivity problems: Check if your SIM card is properly inserted. Verify that mobile data or Wi-Fi is enabled. Restart your phone.
- App crashes: Clear the cache and data for the problematic app in Settings > Apps. If the issue persists, uninstall and reinstall the app.
- Slow performance: Close unnecessary background apps. Clear cached data regularly. Consider performing a factory reset as a last resort (back up your data first).
For further assistance, refer to the Warranty & Support section.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | S5Pro |
| Brand | FOSSIBOT |
| Operating System | Android 15 |
| RAM | 32 GB (8GB physical + 24GB virtual) |
| Memory Storage Capacity | 256 GB (Expandable up to 2TB) |
| Screen Size | 6.88 Inches |
| Resolution | 720x1640 |
| Refresh Rate | 120 Hz |
| CPU Speed | Octa Core (Unisoc T615) |
| Battery Capacity | 6000 Milliamp Hours |
| Phone Talk Time | 43 Hours |
| Phone Standby Time (with data) | 180 Hours |
| Charging Time | 180 Hours (Standby time, not full charge time) |
| Connectivity Technologies | Bluetooth, USB, Wi-Fi6 |
| GPS | True (GPS+GLONASS+Beidou+Galileo) |
| Special Features | Built-In GPS, Dual SIM, Expandable Memory, Octa Core Processor, Water Resistant (IP68) |
| Audio Jack | 3.5 mm |
| Item Weight | 9 ounces |
| Product Dimensions | 0.03 x 0.01 x 0.07 inches |
| Wireless Carrier | T-Mobile (Not AT&T) |
8. Warranty & Support
Your FOSSIBOT S5 Pro comes with a 2-year warranty. For any inquiries or assistance, FOSSIBOT provides 24/7 online after-sales support with real-time response.
For more information or to contact support, please visit the official FOSSIBOT website or refer to the warranty card included in your package.
You can also visit the FOSSIBOT Store on Amazon.
9. Product Videos
FOSSIBOT F105 Rugged Smartphone Overview
Video: This video showcases the FOSSIBOT F105 Rugged Smartphone, highlighting its durability and features. While not the S5 Pro, it demonstrates the brand's commitment to robust phone design, which aligns with the S5 Pro's IP68 rating and other rugged features.
