1. Introdución
The Redmi 12 5G is a feature-rich smartphone designed for a seamless user experience. It boasts a premium glass design, a large 6.79-inch FHD+ display, and 5G connectivity powered by the Snapdragon® 4 Gen 2 Mobile Platform. This manual provides essential information for setting up, operating, and maintaining your device.

Image: The Redmi 12 5G smartphone in Sky Blue, showcasinpolo seu elegante deseño e pantalla.
2. Que hai na caixa
Verifique que todos os elementos que se indican a continuación estean presentes na embalaxe do produto:
- Mobile Phone (Redmi 12 5G)
- Cable USB Tipo-C
- Ferramenta de expulsión da tarxeta SIM
- Funda protectora
- 51W Dual Car Charger
Note: A wall charger is not included in the box. For optimal charging, use an 18W power adapter supporting PD, QC3.0/3.5 protocols, or official Xiaomi power adapters of 18W or above.
3. Guía de configuración
3.1 SIM Card and MicroSD Installation
- Locate the SIM card tray on the side of your Redmi 12 5G.
- Insert the SIM eject tool into the small hole next to the tray and press firmly until the tray pops out.
- Place your Nano-SIM card(s) and/or MicroSD card (up to 1TB) into the tray. The Redmi 12 5G features a hybrid slot, allowing for either two SIM cards or one SIM card and one MicroSD card. Ensure the gold contacts face downwards.
- Volva inserir a bandexa con coidado no teléfono ata que encaixe no seu lugar.
3.2 Acendido e carga iniciais
- Mantén premido o botón de acendido (situado no lateral) ata que apareza o logotipo de Xiaomi.
- Siga as instrucións na pantalla para completar a configuración inicial, incluíndo a selección do idioma, a conexión wifi e a configuración da conta de Google.
- To charge your device, connect the provided USB Type-C cable to the phone's charging port and then to a compatible 18W power adapter (sold separately) or the included car charger.
4. Funcionamento do teu dispositivo
4.1 Pantalla e experiencia visual
The Redmi 12 5G features a large 6.79-inch FHD+ DotDisplay with a 90Hz refresh rate for smooth scrolling and fluid visuals. It includes Reading mode 3.0 and SGS Low Blue Light Certification to reduce eye strain during extended use.

Image: The Redmi 12 5G's 6.79-inch FHD+ DotDisplay, highlighting its 90Hz refresh rate and low blue light certification.
4.2 Características da cámara
Capture high-quality photos and videos with the 50MP main camera and 2MP depth camera. The front camera is 5MP, suitable for selfies and video calls. Both front and rear cameras support 1080P and 720P video recording at 30 frames per second.

Imaxe: Primeiro plano view of the Redmi 12 5G's triple camera system on the rear, featuring the 50MP main sensor.
4.3 Security and Authentication
Unlock your device securely using the side-mounted fingerprint sensor or AI face unlock.

Image: Illustration showing the side fingerprint sensor and the phone's IP53 dust and splash resistance.
4.4 Connectivity and Performance
The Redmi 12 5G supports 5G and 4G LTE networks globally (note: for USA market, it primarily works with T-Mobile, Mint, and Tello). It also features Wi-Fi (2.4GHz and 5GHz), Bluetooth 5.3, FM radio (with headphone jack), and GPS for navigation. The powerful combination of LPDDR4X and UFS 2.2 significantly enhances game loading, app startup, and image loading speed, resulting in a smoother user experience.
5. Mantemento e coidados
5.1 Durabilidade e protección
The Redmi 12 5G features an exquisite glass design and is IP53 dust and splash resistant, offering enhanced durability against everyday elements. While resistant, avoid intentional submersion in water.
5.2 Duración da batería
The device is equipped with a 5000mAh (typ) battery. To maximize battery life, manage background app usage, reduce screen brightness, and enable power-saving modes when needed.

Image: Visual representation of the 5000mAh battery capacity, 18W fast charging compatibility, and 128GB storage expandable via microSD.
6 Solución de problemas
If you encounter issues with your Redmi 12 5G, consider the following common solutions:
- Slow Performance or Freezing:
Close unused applications, clear app caches, and ensure your device's software is up to date. Restarting the phone can often resolve temporary slowdowns. If issues persist, consider a factory reset (back up your data first).
- Fallos das aplicacións:
Ensure the problematic app is updated to its latest version. Clear the app's data and cache in settings. If the issue continues, uninstall and reinstall the app.
- Descarga rápida da batería:
Check battery usage in settings to identify power-hungry apps. Reduce screen brightness, disable unnecessary features like GPS or Bluetooth when not in use, and limit background app refresh. Ensure your phone's software is updated.
- Problemas de conectividade de rede:
Verify your SIM card is properly inserted. Toggle Airplane Mode on and off. Restart your phone. Check with your mobile carrier for network status in your area. Remember, this global version primarily supports T-Mobile, Mint, and Tello in the USA market.
7. Especificacións
| Nome do modelo | Redmi 12 5G |
| Número de modelo do artigo | RED125G4128 |
| Marca | XIAOMI |
| Sistema Operativo | MIUI 14 baseado en Android 13 |
| RAM | 4 GB |
| Capacidade de almacenamento da memoria | 4 GB |
| Tamaño da pantalla | 6.79 polgadas |
| Resolución | 2400 x 1080 |
| Taxa de actualización | 90 Hz |
| Modelo CPU | Snapdragon 4 Gen 2 |
| Velocidade da CPU | 2.2 GHz |
| Capacidade da batería | 5000 mAh |
| Cámara traseira | 50MP Main + 2MP Depth |
| Cámara frontal | 5 MP |
| Conectividade | 5G, 4G LTE, Wi-Fi (2.4GHz/5GHz), Bluetooth 5.3, GPS |
| Jack de audio | 3.5 mm |
| Peso | 7 onzas (198.5 gramos) |
| Cor | Sky Blue Global ROM |
| Características especiais | IP53 Dust and Splash Resistant, Side Fingerprint Sensor, AI Face Unlock, 4K Video Recording |
Note: While 4K Video Recording is listed in specifications, the detailed camera features mention 1080P/720P. Please refer to the latest product information for exact capabilities.
8. Garantía e soporte
For detailed warranty information, please refer to the warranty card included with your product or the purchase documentation.
For further assistance, technical support, or to explore more products, please visit the official XIAOMI websitio ou póñase en contacto co seu servizo de atención ao cliente.
Tamén podes visitar o Tenda Xiaomi en Amazon para obter información e asistencia sobre o produto.