Introduction
The Infinix Note 50x 5G+ is a feature-rich smartphone designed for performance and durability. It boasts a premium metallic finish with a gem-cut camera module and is powered by the MediaTek Dimensity 7300 ULTIMATE processor. The device is MIL-810H military-grade certified, ensuring robust protection. It features a 6.67-inch HD+ IPS LCD display with a 120Hz refresh rate and 672 nits peak brightness, certified by TÜV Rheinland for low blue light. The camera system includes a 50MP dual rear camera with 4K video recording and an 8MP front camera. With 6GB RAM (expandable up to 16GB) and 128GB storage, a 5500mAh SolidCore battery with 45W fast charging, and XOS 15 based on Android 15, this smartphone offers a comprehensive user experience.
Figure 1: Infinix Note 50x 5G+ in Enchanted Purple, showcasing its design and key features.
What's in the Box
Upon unboxing your Infinix Note 50x 5G+, please verify that all the following items are present:
- Infinix Note 50x 5G+ Smartphone
- Phone Case
- Power Adapter (45W Fast Charger)
- SIM Tray Ejector
- Screen Protector (pre-applied or in box)
- USB Cable (Type-C)
Setup
1. Inserting the SIM Card and microSD Card
Locate the SIM tray on the side of your device. Use the provided SIM tray ejector tool to open the tray. Carefully place your Nano-SIM card(s) and/or microSD card into the designated slots. Ensure the cards are correctly oriented as indicated on the tray. Gently push the tray back into the device until it clicks into place.
Figure 2: Side view of the device, illustrating the location of the SIM tray and power/volume buttons.
2. Initial Power On and Setup Wizard
Press and hold the Power button (located on the side) until the Infinix logo appears. Follow the on-screen instructions to complete the initial setup. This includes selecting your language, connecting to Wi-Fi, setting up your Google account, and configuring security features like fingerprint unlock.
3. Charging the Device
Connect the USB Type-C cable to the charging port at the bottom of your phone and the other end to the 45W power adapter. Plug the adapter into a power outlet. The device supports 45W fast charging. It is recommended to fully charge the device before first use.
Figure 3: The device connected to its 45W fast charger, illustrating the charging process and battery indicator.
Operating Your Device
Navigation and User Interface (XOS 15)
Your Infinix Note 50x 5G+ runs on XOS 15, based on Android 15. Navigate the interface using gestures or the traditional navigation bar. Swipe up from the bottom to go home, swipe up and hold for recent apps, and swipe from the left or right edge to go back. Explore the Quick Settings panel by swiping down from the top of the screen.
Figure 4: The XOS 15 user interface on the Infinix Note 50x 5G+, highlighting its clean design and AI integration.
Camera Usage
The device features a 50MP dual rear camera and an 8MP front camera. Open the Camera app from your home screen or app drawer. Tap to focus, pinch to zoom, and swipe left/right to switch between modes (e.g., Photo, Video, Portrait, Super Night). The camera supports 4K video recording and includes AIGC Portrait Mode and 12+ photography modes.
Figure 5: Close-up of the rear camera module, emphasizing the 50MP dual camera setup and gem-cut design.
Gaming Performance
Leverage the MediaTek Dimensity 7300 ULTIMATE processor for enhanced gaming. The device supports 90FPS gaming on titles like BGMI, FreeFire Max, and Call of Duty. Ensure your device is adequately charged and consider using Game Mode settings for optimized performance and reduced distractions during gameplay.
Figure 6: The device showcasing its capability for 90FPS gaming, ideal for popular mobile games.
Maintenance
Software Updates
Regularly check for and install software updates to ensure optimal performance, security, and access to new features. Go to Settings > System > System Update to check for available updates. Ensure your device has sufficient battery and a stable internet connection before initiating an update.
Cleaning Your Device
To clean your Infinix Note 50x 5G+, use a soft, lint-free cloth. For stubborn smudges, slightly dampen the cloth with water or a screen cleaner designed for electronics. Avoid using harsh chemicals, abrasive materials, or excessive moisture. The device is IP64 rated for dust and splash resistance, but it is not fully waterproof.
Figure 7: Visual representation of the device's military-grade durability and IP64 rating, indicating resistance to dust and splashes.
Battery Care
To prolong battery life, avoid exposing the device to extreme temperatures. Use the original 45W charger for optimal charging speed and battery health. The 5500mAh SolidCore battery is designed for longevity with over 2300 charge cycles. Features like bypass charging and AI charge protection help maintain battery health.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Device not turning on | Ensure the battery is charged. Connect the charger and wait a few minutes before attempting to power on. If unresponsive, perform a force restart by holding the Power button for 10-15 seconds. |
| Poor network signal or no service | Check if the SIM card is correctly inserted. Try restarting the device. Verify network settings (Settings > Network & internet > Mobile network). If issues persist, contact your network provider. |
| Battery drains quickly | Reduce screen brightness, disable unused features like Wi-Fi, Bluetooth, GPS when not needed. Close background apps. Check battery usage in Settings to identify power-consuming apps. |
| Apps crashing or freezing | Clear the cache and data of the problematic app (Settings > Apps > [App Name] > Storage & cache). Update the app to the latest version. If the issue continues, uninstall and reinstall the app. |
| Fingerprint sensor not working | Ensure your finger is clean and dry. Re-register your fingerprints in Settings > Security > Fingerprint. If the issue persists, try restarting the device. |
Specifications
Below are the detailed technical specifications for the Infinix Note 50x 5G+ (Model: X6857B):
| Feature | Detail |
|---|---|
| Model Number | X6857B |
| Operating System | Android 15 || XOS 15 (Based on Android 15) |
| Processor | MediaTek Dimensity 7300 ULTIMATE (Octa-core, 2.5 GHz CPU Speed) |
| RAM | 6 GB (Expandable up to 16GB with virtual RAM) |
| Internal Storage | 128 GB |
| Display | 6.67-inch HD+ IPS LCD, 120Hz Refresh Rate, 672 nits Peak Brightness, 240Hz Touch Sampling Rate, TÜV Rheinland Low Blue Light Certified |
| Resolution | 720 x 1600 pixels |
| Rear Camera | 50MP Dual Camera, 4K Video Recording, 10X Digital Zoom, Dual Flash, AIGC Portrait Mode, 12+ Photography Modes |
| Front Camera | 8MP with Flash |
| Battery | 5500mAh SolidCore Battery |
| Charging | 45W All-Round FastCharge 3.0 |
| Connectivity | 5G, Bluetooth, Infrared, USB, Wi-Fi, GPS (Glonass, Galileo, Google Maps) |
| Audio Jack | Type C Earphone Jack |
| Security | Side Fingerprint Sensor |
| Durability | MIL-STD-810H Certified, IP64 Rated (Dust and Splash Resistant) |
| Dimensions | 16.5 x 7.6 x 0.8 cm |
| Weight | 47 g |
| Color | Enchanted Purple |
Figure 8: Illustration emphasizing the MediaTek Dimensity 7300 Ultimate processor, a core component of the device's performance.
Warranty and Support
Your Infinix Note 50x 5G+ comes with a standard manufacturer's warranty covering defects in materials and workmanship. The specific terms and duration of the warranty may vary by region. Please refer to the warranty card included in your product packaging for detailed information.
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Infinix customer support. You can typically find contact information (phone numbers, email, or support website) on the official Infinix website or in the warranty documentation provided with your device.
Keep your proof of purchase (receipt or invoice) as it will be required for any warranty service.
