Mobile / Smartphones
User Manual for Xiaomi 15T
Quick start guide for the Xiaomi 15T smartphone. Includes instructions on device setup, SIM card installation, charging, and important safety information.
Table of contents
Manual images
Click an image to enlargeQuick Start Guide
To turn on your Xiaomi 15T, press and hold the power button. Follow the on-screen instructions to configure your device.
Device Overview
The device features volume buttons on the side, a power button, and a USB Type-C port at the bottom.
SIM Card Installation
Insert a standard SIM card into the SIM card slot. Do not use non-standard SIM cards as they may damage the slot.
Charging
You can charge the device by connecting it to a computer via a USB data cable or by using the included USB cable with a Mi charger. The device supports fast charging up to 67W (Xiaomi HyperCharge). Ensure the charger provides between 10W and 50W for optimal charging speed using USB PD.
Important Safety Information
- Battery Safety: Do not disassemble, strike, crush, or burn the battery. If the battery appears deformed or damaged, stop using it immediately.
- Hearing Protection: To prevent potential hearing damage, do not listen at high volume levels for long periods.
- Usage Environment: Keep the device dry. Do not use the phone in high-humidity areas like bathrooms.
- Medical Interference: Keep the phone at least 15 cm away from pacemakers. Consult your doctor if you use medical devices.
Regulatory Information
This device complies with SAR limits for general population/uncontrolled exposure. The SAR limit is 2.0 W/kg (10g). The device is compliant with EU and FCC regulations. For detailed regulatory information, visit www.mi.com/en/certification.
Official resources from the manual
Manufacturer information
Xiaomi Corporation
Practical help
Common problems
Device does not turn on
Press and hold the power button.
Battery not charging
Ensure the charger is compatible (USB PD) and the cable is securely connected.
Potential interference with medical devices
Keep the phone at least 15 cm away from pacemakers and consult your doctor.
Before use
- Check that the SIM card is a standard size.
- Ensure the charger is compatible with USB PD standards.
- Update the operating system via the built-in software update feature.
- Keep the device dry.
Specs in practice
- SAR (Specific Absorption Rate)
- A measure of the rate at which energy is absorbed by the human body when exposed to a radio frequency electromagnetic field.
- 67W HyperCharge
- The maximum supported fast charging power for this device.
Images and diagrams
- The device layout shows the volume buttons and power button on the right side.
- The USB Type-C port is located at the bottom of the device.
- The SIM card installation diagram shows the correct orientation for inserting a Nano-SIM card.
Model compatibility
- Supports USB PD fast charging.
- Compatible with most USB power adapters and USB Type-C cables.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.