Mobile / Smartphones
Xiaomi Redmi Note 10S Smartphone User Guide
Quick start guide for the Xiaomi Redmi Note 10S, covering device setup, SIM card installation, safety precautions, and regulatory information.
Table of contents
Manual images
Jump to the sectionGetting Started
To turn on your Redmi Note 10S, press and hold the power button. Follow the on-screen instructions to configure your device. For detailed support and the latest user guide, visit www.mi.com/global/service/userguide.
MIUI Operating System
The device comes pre-installed with MIUI, a customized Android-based operating system. It provides frequent updates and user-friendly features. For more information, visit en.miui.com.
SIM Card Tray
The device supports dual nano-SIM cards and a microSD card. When using both SIM slots, you can designate either card as the primary one. Please use only standard nano-SIM cards to avoid damaging the tray. Do not attempt to disassemble the device.
Important Safety Information
- Operating Temperature: Use the device within the range of 0°C to 40°C.
- Battery Safety: Do not attempt to replace the built-in battery yourself. Use only authorized cables and power adapters. Disconnect the charger after use and do not charge for more than 12 hours.
- Handling: Keep the device dry. Do not disassemble, hit, crush, or burn the battery. If the battery appears deformed or damaged, stop using it immediately.
- Medical Interference: Maintain a minimum distance of 15 cm between the phone and pacemakers to avoid interference.
- Environment: Do not use the phone in explosive atmospheres, near petrol stations, or in high-humidity areas like bathrooms.
Regulatory and Compliance
The device complies with EU and FCC regulations regarding RF exposure (SAR). For certification information, go to Settings > About phone > Certification. The device is restricted to indoor use only when operating in the 5150 to 5350 MHz frequency range in certain countries.
Official resources from the manual
Manufacturer information
Xiaomi Corporation
Practical help
Common problems
Device not working properly
Do not attempt self-repair. Contact Mi customer support or visit an authorized repair center.
Battery damage or deformation
Stop using the device immediately and contact an authorized service center.
Potential interference with medical devices
Maintain at least 15 cm distance from pacemakers and consult your doctor if you use medical equipment.
Before use
- Ensure you are using standard nano-SIM cards.
- Verify the power adapter meets IEC/EN 62368-1 standards.
- Check that the operating environment is between 0°C and 40°C.
- Ensure the device is kept dry and away from high humidity.
Specs in practice
- Operating Temperature
- 0°C to 40°C; usage outside this range may damage the device.
- SAR Limit (EU)
- 2.0 W/kg (10g) for head and trunk.
- SAR Limit (FCC)
- 1.6 W/kg.
Images and diagrams
- The device features volume buttons and a power button on the right side.
- The USB Type-C port is located at the bottom of the device.
- The SIM tray supports two nano-SIM cards and one microSD card.
Model compatibility
- Dual 4G SIM availability depends on the telecom operator and region.
- VoLTE support is limited to specific regions and operators.
- 5 GHz Wi-Fi (5150-5350 MHz) is restricted to indoor use in EU member states.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.