1. Introduction
This manual provides essential information for the safe and efficient use of your XIAOMI Redmi 15C 4G LTE smartphone. Please read this manual thoroughly before using your device to ensure optimal performance and longevity. Keep this manual for future reference.
2. Safety Information
- Do not expose the device to extreme temperatures, direct sunlight, or high humidity.
- Use only approved chargers and accessories to prevent damage and ensure safety.
- Avoid dropping or subjecting the device to severe impact.
- Keep the device away from medical implants and devices.
- Dispose of the device and its battery responsibly according to local regulations.
3. Package Contents
Upon unboxing your XIAOMI Redmi 15C, verify that the following items are included:
- XIAOMI Redmi 15C Smartphone
- 33W Wall Charger
- USB Type-C Cable (Adapter)
- Phone Case
- User Manual (this document)
4. Device Overview
The XIAOMI Redmi 15C features a sleek design with a large display and a prominent camera module. Familiarize yourself with the physical components of your device.
Image Description: This image displays the front and back of the XIAOMI Redmi 15C 4G LTE smartphone. The front shows the large display with a small notch for the front camera. The back highlights the mint green color, the XIAOMI branding, and the dual camera system with a 50MP main sensor.
5. Setup
5.1. SIM Card and MicroSD Card Installation
- Locate the SIM card tray on the side of your device.
- Insert the SIM ejector tool into the small hole next to the tray and push gently until the tray pops out.
- Place your Nano-SIM card(s) and/or MicroSD card into the designated slots on the tray. This device supports Dual Nano SIM and 1 MicroSD card.
- Carefully reinsert the tray into the device.
5.2. Initial Power On and Network Compatibility
To power on your device, press and hold the power button until the XIAOMI logo appears. Follow the on-screen instructions for initial setup.
Important Network Compatibility Information for USA Users:
The XIAOMI Redmi 15C 4G LTE is designed for specific network compatibility. Please review the information below to ensure your carrier is supported.
Image Description: This chart visually indicates network compatibility for the XIAOMI Redmi 15C 4G LTE. The green 'COMPATIBLE' section lists T-MOBILE, MINT, TELLO, ULTRA, and 'OUTSIDE USA'. The red 'NOT COMPATIBLE' section lists VERIZON, AT&T, XFINITY, BOOST, VIRGIN, VISIBLE, CRICKET, and 'OTHER CDMA CARRIER'.
For users in the USA, this device is primarily compatible with T-MOBILE and MiNT networks. It is recommended to use a previously activated SIM card for these carriers. The device is a Worldwide Unlocked Dual Nano SIM phone, supporting 4G VoLTE outside the USA.
Supported Network Bands:
- 2G GSM: 2/3/5/8
- 3G WCDMA: 1/5/8
- 4G LTE FDD: 1/2/3/4/5/7/8/20/28
- 4G LTE TDD: 38/40/41
Please note that this model does NOT include NFC functionality.
6. Operating Your Device
6.1. Display and Navigation
The Redmi 15C features a 6.9-inch FHD+ DotDisplay with a resolution of 720x1600. It offers a refresh rate of up to 120Hz for smooth scrolling and a touch sampling rate of up to 288Hz for responsive interaction. The display is TüV Rheinland certified for Low Blue Light, Circadian Friendly, and Flicker Free operation, enhancing eye comfort.
6.2. Camera Functions
Your device is equipped with a 50MP main camera (f/1.8, 5P lens) and an auxiliary lens for high-quality photography. The 8MP front camera (f/2) includes features like filmCamera, HDR mode, Soft-light ring, Portrait mode, and Time-lapse. Video recording supports 1080p and 720p at 30 fps for both front and rear cameras.
6.3. Battery Management
The Redmi 15C is powered by a massive 6000mAh (typical) battery, providing extended usage. It supports 33W turbo charging, allowing for quick recharges using the included 33W wall charger and USB Type-C cable.
6.4. Connectivity
The device supports Wi-Fi (2.4GHz | 5GHz) and Bluetooth 5.1 for wireless connections. For navigation, it includes GPS, AGPS, GLONASS, Beidou, and Galileo. A 3.5mm headphone jack is also available.
7. Maintenance
- Cleaning: Use a soft, lint-free cloth to clean the screen and body. Avoid harsh chemicals.
- Software Updates: Regularly check for and install system updates to ensure optimal performance and security.
- Storage Management: Periodically clear unnecessary files and apps to maintain sufficient storage space and device speed.
- Battery Care: Avoid fully discharging the battery frequently. Charge your device before the battery level drops too low.
8. Troubleshooting
- Device not powering on: Ensure the battery is charged. Connect to the charger for at least 10 minutes before attempting to power on again.
- Network connection issues: Verify SIM card installation. Check network compatibility with your carrier. Restart the device.
- Apps freezing or crashing: Close background applications. Clear app cache. If the issue persists, restart the device.
- Slow performance: Free up storage space. Close unused apps. Consider a factory reset as a last resort (back up data first).
9. Specifications
| Feature | Specification |
|---|---|
| Model Name | Redmi 15C (25078RA3EL) |
| Operating System | Xiaomi HyperOS based on Android 15 |
| Display Size | 6.9 Inches FHD+ DotDisplay |
| Resolution | 720 x 1600 |
| Refresh Rate | Up to 120 Hz |
| Processor | Octa Core Helio G81 (2.0 GHz CPU Speed) |
| RAM Memory | 4 GB |
| Internal Storage | 128 GB |
| Main Camera | 50MP (f/1.8) + Auxiliary lens |
| Front Camera | 8MP (f/2) |
| Battery Capacity | 6000 mAh (typical) |
| Charging | 33W Turbo Charging |
| Connectivity | Wi-Fi (2.4GHz/5GHz), Bluetooth 5.1, GPS, AGPS, GLONASS, Beidou, Galileo |
| Audio Jack | 3.5 mm |
| SIM Type | Dual Nano SIM + 1 Micro SD Slot |
| Special Features | Rear fingerprint sensor, AI face unlock, Dual Camera |
| Color | Mint Green |
| Item Weight | 6 ounces |
| Package Dimensions | 7 x 4 x 2 inches |
10. Regulatory Information
Your XIAOMI Redmi 15C complies with various international regulatory standards. Key certifications are detailed below.
Image Description: This image displays the regulatory labels found on the XIAOMI Redmi 15C. It includes the CE mark for European conformity, the FCC ID: 2AFZZRA3EL for the United States, the NOM certification for Mexico, and the SUTEL mark for Costa Rica, indicating compliance with respective regional standards.
FCC ID: 2AFZZRA3EL
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
11. Warranty and Support
For warranty information and customer support, please refer to the warranty card included in your product packaging or visit the official XIAOMI website. Keep your proof of purchase for warranty claims.
