1. Introdución
The Xiaomi 15T Ai 5G is a high-performance smartphone designed for advanced mobile communication and multimedia experiences. It features an ultra-slim design, a 6.83-inch 120Hz eye-care display, and is powered by the MediaTek Dimensity 8400-Ultra processor. The device includes a professional Leica triple camera system and supports 67W HyperCharge for its 5500mAh battery. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your Xiaomi 15T Ai 5G smartphone.

Imaxe 1.1: Parte dianteira e traseira view of the Xiaomi 15T Ai 5G smartphone, showcasino seu elegante deseño e o módulo da cámara.
2. Que hai na caixa
Upon unboxing your Xiaomi 15T Ai 5G, please verify that the following items are included:
- Xiaomi 15T Ai 5G Smartphone
- Cable USB (Tipo-C)
- Expulsor da bandexa SIM
- Funda do teléfono
- Manual de usuario (este documento)
Note: A power adapter is not included in the box. A Xiaomi 67W power adapter or above is recommended for optimal charging performance.
3. Configuración
3.1 Instalación da tarxeta SIM
- Localiza a bandexa da tarxeta SIM no lateral do teu dispositivo.
- Insira a ferramenta de expulsión da bandexa da SIM no pequeno orificio que hai xunto á bandexa e prema firmemente ata que esta saia.
- Place your Nano-SIM card(s) into the designated slots on the tray. The Xiaomi 15T supports Dual Nano SIM and eSIM functionality. Micro SD cards are not supported.
- Volva inserir a bandexa da tarxeta SIM no dispositivo con coidado.
3.2 Acendido/Apagado
- Para acender: Mantén premido o botón de acendido (situado no lateral) ata que apareza o logotipo de Xiaomi na pantalla.
- Para apagar: Mantén premido o botón de acendido e, a seguir, selecciona "Apagar" entre as opcións que aparecen na pantalla.
- Para reiniciar: Mantén premido o botón de acendido e, a seguir, selecciona "Reiniciar" entre as opcións.
3.3 Configuración inicial
Upon first power-on, the device will guide you through the initial setup process. This includes selecting your language, connecting to a Wi-Fi network, setting up your Google account, and configuring security features like fingerprint unlock and AI face unlock.
4. Funcionamento do dispositivo
4.1 Características de visualización
The Xiaomi 15T features a 6.83-inch AMOLED flat display with ultra-slim bezels, offering a resolution of 2772 x 1280 pixels (447ppi). Key display characteristics include:
- Frecuencia de actualización: Up to 120Hz for smooth visuals.
- Toca Samptaxa de ling: 480Hz, with an instantaneous touch sampling rate of 2560Hz (activated in Game Turbo mode).
- Brillo: Peak brightness of 3200 nits, ensuring clear readability in various lighting conditions.
- Profundidade de cor: 68 billion colors with DCI-P3 color gamut, Original color PRO, Pro HDR, HDR10+, and Dolby Vision support.
- Coidados dos ollos: TÜV Rheinland Low Blue Light (Hardware Solution) Certified, Flicker Free Certified, and Circadian Friendly Certified.
- Protección: Corning Gorilla Glass 7i.

Image 4.1: Visual representation of the Xiaomi 15T's advanced display specifications.
Sistema de cámara 4.2
The Xiaomi 15T is equipped with a versatile Leica triple camera system and a high-resolution front camera.
Rear Camera (Leica Triple Camera)
- Cámara principal: 50MP, Leica 23mm equivalent focal length, f/1.7 aperture, OIS, Light Fusion 800 image sensor (2.0µm 4-in-1 Super Pixel).
- Cámara teleobxectiva: 50MP, Leica 46mm equivalent focal length, f/1.9 aperture.
- Cámara ultra gran angular: 12MP, Leica 15mm equivalent focal length, f/2.2 aperture, 120° field of view.
The Leica Summilux optical lens ensures exceptional optical performance and accurate color reproduction. The camera system supports 4K video recording at 30/60 fps, 1080p HD video recording at 30/60 fps, and slow-motion video up to 960fps.

Image 4.2: Close-up of the Leica triple camera setup, highlighting its professional capabilities.
Cámara frontal
- Resolución: 32MP in-display selfie camera.
- Distancia focal: 21mm equivalent, f/2.2 aperture.
Front camera features include HDR, Portrait mode, Palm shutter, Voice shutter, Timed burst, Selfie timer, Screen fill light, and HDR10+ video recording. It supports 4K video recording at 30 fps.

Image 4.3: Advanced video recording capabilities of the Xiaomi 15T, including 10-bit log and LUT import.
4.3 Conectividade
The Xiaomi 15T offers robust connectivity options:
- Rede: Supports 2G, 3G, 4G LTE (FDD and TDD), and 5G (NSA + SA) networks. Compatible with T-Mobile, Mint, and Tello in the USA, and global networks.
- GPS: L1+L5 GPS, Galileo (E1+E5a), GLONASS (G1), Beidou, QZSS (L1+L5), NavIC (L5), and A-GPS supplementary positioning.
- Sen fíos: Wi-Fi, Bluetooth.
- Xiaomi Astral Communication: Enhanced connectivity with the self-developed Xiaomi Surge T1S Tuner, optimizing Wi-Fi, Bluetooth, GPS, and cellular signals.

Image 4.4: Xiaomi Astral Communication system with Surge T1S Tuner for improved signal performance.
4.4 AI Features (Google Gemini & Xiaomi HyperAI)
The Xiaomi 15T integrates advanced AI capabilities through Google Gemini and Xiaomi's HyperAI ecosystem:
- Rodea para buscar con Google: Busca información rapidamente rodeando obxectos na pantalla.
- Google Xemelgos: A personal AI assistant for various tasks, including Gemini Live (ask about what you see), Gemini overlay (quick access without switching apps), Image generation, and Connected apps (pull information and take action across apps).
- Xiaomi AI Features: AI Interpreter, AI Notes, AI Recorder, AI Subtitles, AI Film, AI image editing, AI Portrait.

Image 4.5: Google Gemini integration on the Xiaomi 15T, showcasing its interactive AI capabilities.
4.5 Batería e carga
The device is powered by a 5500mAh (typical) Xiaomi Surge battery, offering extended usage times. It supports 67W HyperCharge technology for rapid charging via its USB-C port.
- Capacidade da batería: 5500mAh (typical).
- Cargando: 67W HyperCharge, supports PD3.0 / PD2.0.
- Porto de carga: USB tipo C.
Note: A power adapter is not included. Using a Xiaomi 67W power adapter or above is recommended for optimal charging speed.

Image 4.6: Battery and charging features, emphasizing the 5500mAh capacity and 67W HyperCharge.
5. Mantemento
5.1 Actualizacións de software
Regularly check for and install software updates to ensure your device has the latest features, security patches, and performance improvements. Updates are typically delivered over-the-air (OTA) and can be accessed through the device's settings menu.
5.2 Limpeza do dispositivo
To clean your Xiaomi 15T, use a soft, lint-free cloth. Avoid using harsh chemicals, abrasive materials, or aerosol sprays, as these can damage the screen and finish. For stubborn smudges, slightly dampen o pano con auga.
5.3 Coidado coa batería
Para prolongar a duración da batería:
- Evite expoñer o dispositivo a temperaturas extremas.
- Non descargues completamente a batería con frecuencia.
- Use the recommended 67W charger for optimal charging.
6 Solución de problemas
Esta sección aborda problemas comúns que podes atopar co teu Xiaomi 15T Ai 5G.
6.1 O dispositivo non se acende
- Ensure the battery is charged. Connect the device to a charger for at least 15 minutes before attempting to power it on.
- Manteña premido o botón de acendido durante 10-15 segundos para realizar un reinicio forzado.
6.2 Conectividade de rede deficiente
- Comprobe se a súa tarxeta SIM está inserida correctamente.
- Verify that you are within network coverage.
- Reinicie o dispositivo.
- Go to Settings > Network & internet > Mobile network and ensure your preferred network type is selected.
6.3 A pantalla non responde
- Perform a forced restart by holding the Power button.
- Ensure the screen is clean and free of moisture.
6.4 A batería esgótase rapidamente
- Reduce o brillo da pantalla.
- Pecha as aplicacións non utilizadas que se executan en segundo plano.
- Desactiva funcións como o Wi-Fi, o Bluetooth ou o GPS cando non esteas en uso.
- Comproba o uso da batería en Axustes para identificar as aplicacións que consomen moita enerxía.
7. Especificacións
Detailed technical specifications for the Xiaomi 15T Ai 5G (Model: 15T):
| Característica | Especificación |
|---|---|
| Número de modelo | 15 T |
| Sistema Operativo | Android |
| Procesador | MediaTek Dimensity 8400-Ultra (4nm process, CPU: 1x Arm Cortex-A725 up to 3.25GHz, 3x Arm Cortex-A725 up to 3.0GHz, 4x Arm Cortex-A725 up to 2.1GHz; GPU: Mali-G720; AI: NPU 880) |
| RAM | 12 GB |
| Capacidade de almacenamento | 512 GB |
| Tamaño de visualización | 6.83 polgadas |
| Resolución de visualización | 2772 x 1280 pixels (447ppi) |
| Taxa de actualización | Ata 120 Hz |
| Brillo máximo | 3200 nits |
| Cámara traseira | Leica Triple Camera: 50MP Main, 50MP Telephoto, 12MP Ultra-Wide |
| Cámara frontal | 32 MP |
| Capacidade da batería | 5500 mAh (típico) |
| Cargando | 67W HyperCharge (USB-C) |
| Conectividade | 2G, 3G, 4G, 5G, Wi-Fi, Bluetooth, GPS (L1+L5), Galileo, GLONASS, Beidou, QZSS, NavIC |
| Dimensións | 0.3 x 3.07 x 6.43 polgadas |
| Peso | 14.1 onzas (0.4 quilogramos) |
| Cor | Ouro rosa |
| Portador sen fíos | Unlocked for All Carriers (USA: T-Mobile, Mint, Tello compatible) |

Image 7.1: Key features and specifications of the Xiaomi 15T Ai 5G.

Image 7.2: The MediaTek Dimensity 8400-Ultra processor, the core of the Xiaomi 15T's performance.
8. Garantía e soporte
Please note that this is an International Model and may not carry a warranty in the US. For specific warranty information, please refer to the documentation provided at the point of purchase or contact your seller directly.
For technical support or further assistance, please visit the official Xiaomi support websitio ou póñase en contacto co seu servizo de atención ao cliente.