Introducció
This manual provides essential information for the proper use and maintenance of your Xiaomi Redmi Note 12S 4G LTE smartphone. Please read this guide thoroughly before using your device to ensure optimal performance and longevity.

Image: Xiaomi Redmi Note 12S 4G LTE smartphone, Onyx Black, displaying its front screen and the rear camera system.
Configuració
1. Unboxing i Inspecció Inicial
Upon opening the package, verify that all components are present and undamaged. The box should contain:
- Xiaomi Redmi Note 12S 4G LTE Smartphone
- Adaptador d'alimentació
- Cable USB
- Funda de telèfon
- Carregador de cotxes ràpid
2. Instal·lació de la targeta SIM i la targeta MicroSD
Locate the SIM card tray on the side of your device. Use the provided SIM ejector tool to open the tray. Insert your nano-SIM card(s) and an optional microSD card into the designated slots. Ensure the cards are correctly oriented as indicated on the tray. Gently push the tray back into the device until it clicks into place.
3. Engegada i configuració inicial
Press and hold the power button located on the side of the device until the Xiaomi logo appears. Follow the on-screen prompts to complete the initial setup, which includes selecting your language, connecting to a Wi-Fi network, and signing in to your Google account.
Funcionament del vostre dispositiu
1. Característiques de la pantalla
The Redmi Note 12S features a 6.67-inch AMOLED display with a resolution of 2400x1080 pixels and a 90Hz refresh rate. This provides vibrant colors and smooth scrolling. Adjust brightness and display settings via the Settings menu.
2. Sistema de càmeres
Your device is equipped with a versatile triple rear camera system: a 108MP main sensor, an 8MP ultrawide lens, and a 2MP macro lens. The front camera is 13MP. Open the Camera application to access various modes, including photo, video, portrait, and pro mode.
3. Rendiment i emmagatzematge
Powered by an Octa-core MediaTek Helio G96 processor and 8GB of RAM, the Redmi Note 12S offers responsive performance for daily tasks and gaming. It includes 256GB of internal storage, expandable up to 1TB via a microSD card.
4. Bateria i càrrega
The device contains a 5000mAh battery, providing extended usage time. It supports 33W fast charging, allowing for quick recharges. Use the provided adapter and USB cable for optimal charging speed.
5. Sistema operatiu
The Redmi Note 12S runs on MIUI 14, based on Android 13. This operating system offers a customizable user interface, enhanced privacy features, and access to a wide range of applications through the Google Play Store.
6. Connectivitat
The device supports 4G LTE networks, Wi-Fi, and Bluetooth for seamless connectivity. Ensure your SIM card is active for cellular data and calls. Connect to Wi-Fi networks for internet access and pair with Bluetooth devices for wireless audio or data transfer.
7. Característiques de seguretat
For enhanced security, the Redmi Note 12S includes a fingerprint sensor (integrated into the power button) and face unlock functionality. Configure these options in the Security settings to protect your device and data.
Manteniment
1. Actualitzacions de programari
Regularly check for and install system updates to ensure your device has the latest features, security patches, and performance improvements. Navigate to Configuració > Quant al telèfon > Versió MIUI per comprovar si hi ha actualitzacions.
2. Neteja del dispositiu
To clean your smartphone, power it off and gently wipe the screen and body with a soft, lint-free cloth. For stubborn smudges, slightly dampNetegeu el drap amb aigua o una solució de neteja específica per a pantalles. Eviteu utilitzar productes químics agressius o materials abrasius.
3. Estat de la bateria
To prolong battery life, avoid extreme temperatures. Do not leave the device charging for extended periods after it reaches 100%. Periodically allow the battery to discharge to below 20% before recharging.
Resolució de problemes
1. El dispositiu no s'encén
If your device does not power on, ensure it is sufficiently charged. Connect it to the charger for at least 15-30 minutes, then attempt to power it on again by pressing and holding the power button.
2. Problemes de connectivitat de xarxa
If you experience issues with cellular network connectivity, check if your SIM card is properly inserted. Try restarting the device or toggling Airplane Mode on and off. Verify your mobile data settings are correct with your service provider.
3. Rendiment lent
If the device is running slowly, try closing unused applications, clearing cache data, or restarting the phone. Ensure you have sufficient free storage space. Excessive background processes or a full storage can impact performance.
4. La pantalla no respon
If the screen becomes unresponsive, perform a force restart by pressing and holding the power button for approximately 10-15 seconds until the device reboots.
Especificacions
| Característica | Detall |
|---|---|
| Nom del model | Redmi Note 12S 4G LTE |
| Mida de la pantalla | 6.67 polzades |
| Resolució de visualització | 2400 x 1080 |
| Freqüència d'actualització | 90 Hz |
| Sistema operatiu | MIUI 14, Android 13 |
| Processador | Octa-core MediaTek Helio G96 |
| RAM | 8 GB |
| Capacitat d'emmagatzematge | 256 GB (ampliable fins a 1 TB) |
| Càmera principal | 108MP + 8MP Ultrawide + 2MP Macro |
| Càmera frontal | 13MP |
| Capacitat de la bateria | 5000 mAh |
| Carregant | Càrrega ràpida de 33 W |
| Connectivitat | 4G LTE, Wi-Fi, Bluetooth |
| Seguretat | Sensor d'empremta digital, desbloqueig facial |
| Pes de l'article | 14.1 unces (0.4 quilograms) |
Garantia i suport
Your Xiaomi Redmi Note 12S 4G LTE is covered by a standard manufacturer's warranty. For detailed warranty terms, conditions, and duration, please refer to the warranty card included in your product packaging or visit the official Xiaomi weblloc.
For technical support, service inquiries, or to find authorized service centers, please visit the official Botiga XIAOMI or contact Xiaomi customer service directly.





