1. ບົດແນະນຳ
This manual provides essential instructions for setting up, operating, and maintaining your Redmi 15 5G NFC smartphone. Please read this guide thoroughly to ensure proper usage and to maximize the device's capabilities.

Image 1: Redmi 15 5G NFC Smartphone (Titan Gray)
2. ສິ່ງທີ່ຢູ່ໃນກ່ອງ
ກວດສອບວ່າລາຍການທັງຫມົດແມ່ນມີຢູ່ໃນຊຸດຜະລິດຕະພັນຂອງທ່ານ:
- Redmi 15 5G NFC Smartphone
- ສາຍ USB
- ກະເປົາໂທລະສັບ
- ຄູ່ມືເລີ່ມຕົ້ນດ່ວນ (ເອກະສານນີ້)
3. ຕັ້ງຄ່າ
3.1. ການຕິດຕັ້ງຊິມກາດ
- ຊອກຫາຖາດຊິມຢູ່ດ້ານຂ້າງຂອງອຸປະກອນຂອງທ່ານ.
- ໃສ່ເຄື່ອງມືຖອດຊິມເຂົ້າໄປໃນຮູນ້ອຍໆເທິງຖາດຊິມ.
- ຄ່ອຍໆດຶງຖາດຊິມອອກ.
- Place your Nano-SIM card(s) and/or microSD card into the designated slots on the tray. This device supports Dual SIM or one SIM and one microSD card.
- ໃສ່ຖາດ SIM ເຂົ້າໄປໃນໂທລະສັບຢ່າງລະມັດລະວັງ.
3.2. Initial Power On and Network Configuration
- Press and hold the Power button until the Redmi logo appears.
- ປະຕິບັດຕາມການເຕືອນໃນຫນ້າຈໍເພື່ອເລືອກພາສາ, ພາກພື້ນຂອງທ່ານແລະເຊື່ອມຕໍ່ກັບເຄືອຂ່າຍ Wi-Fi.
- The device will automatically detect your cellular network (5G, 4G VoLTE, 3G, 2G) if a SIM card is installed.
- Complete the setup process, including Google account sign-in and security settings.
3.3. ຟັງຊັນ NFC
The Redmi 15 5G includes NFC (Near Field Communication) for contactless payments and quick data transfer. To enable or disable NFC, navigate to ການຕັ້ງຄ່າ > ການເຊື່ອມຕໍ່ ແລະການແບ່ງປັນ > NFC.
4. ປະຕິບັດການອຸປະກອນຂອງທ່ານ
4.1. ຄຸນສົມບັດການສະແດງ
Your Redmi 15 5G features an immersive 6.9-inch FHD+ DotDisplay with a resolution of 2340 x 1080 pixels and a refresh rate of up to 144Hz for smooth visuals. The display also incorporates eye-care technologies certified by TÜV Rheinland for reduced blue light and flicker-free viewing.

Image 2: Immersive 6.9" FHD+ display and Smart Charging Engine 2.0
The device also features Wet Touch Technology 2.0, allowing for accurate touch response even when the screen is wet.
4.2. ການນໍາໃຊ້ກ້ອງຖ່າຍຮູບ
The Redmi 15 5G is equipped with a 50MP AI dual camera system on the rear and an 8MP front camera. Both cameras support 1080p and 720p HD video recording at 30 frames per second.

Image 3: Quad-curved design, 33W fast charging, and 50MP AI dual camera system
Camera features include:
- ກ້ອງຫຼັກ 50MP: 5P lens, f/1.8 aperture.
- ກ້ອງໜ້າ 8MP: f/2 aperture, with features like filmCamera, HDR mode, Soft-light ring, Portrait mode, and Time-lapse.
- Creative AI Tools: For effortless photo and video editing.
4.3. ຄຸນນະສົມບັດຄວາມປອດໄພ
Unlock your device using the side-mounted fingerprint sensor or AI face unlock for convenient and secure access.
4.4. ການຄຸ້ມຄອງຫມໍ້ໄຟ
The device is powered by a massive 7000mAh (typical) battery, designed for extended use. It supports 33W fast charging and 18W reverse charging.

Image 4: 7000mAh Xiaomi Surge Battery with extended usage times
Key battery features:
- ຍາວ: Up to 2.26 days of typical use, 25 hours of video playback, 108 hours of music playback, or 30 hours of reading.
- Low-Temperature Performance: Enhanced by a BatteryExtender Chip, supporting up to 12 hours of video playback or 7 hours of calling at -20°C.
- 1% Power Endurance: Even at 1% battery, the device can remain in standby mode for up to 7.5 hours or allow up to 59 minutes of calls.
- ຊີວິດຫມໍ້ໄຟທົນທານ: Maintains over 80% of its original capacity after 1600 full charge cycles.
4.5. ການປະຕິບັດ
The Redmi 15 5G is powered by the Snapdragon® 6s Gen 3 5G processor, built on an efficient 6nm process for fast and reliable performance.

Image 5: Snapdragon® 6s Gen 3 with 5G
It supports up to 16GB RAM with Memory extension (based on the 8GB RAM version), utilizing ROM storage for smoother multitasking.
4.6. Navigation and Connectivity
The device supports multiple navigation systems including GPS, Glonass, Galileo, and Beidou. Connectivity options include Wi-Fi and 5G cellular networks.
4.7. Google Gemini Integration
The Redmi 15 5G integrates with Google Gemini, an AI assistant to help with writing, brainstorming, learning, and more. Features include Gemini overlay for quick access, Gemini Live for conversational interaction, and image generation capabilities.

Image 6: Redmi 15 5G with Google Gemini features
5. ບໍາລຸງຮັກສາ
5.1. ການດູແລທົ່ວໄປ
Your device has an IP64 rating for dust and water resistance, offering protection against splashes and dust ingress. However, it is not waterproof and should not be submerged in water. Clean the screen and body with a soft, dry cloth. Avoid using harsh chemicals.
5.2. ການປັບປຸງຊອບແວ
The Redmi 15 5G runs on Xiaomi HyperOS based on Android 15. Ensure your device's software is up to date by regularly checking for updates in ການຕັ້ງຄ່າ > ກ່ຽວກັບໂທລະສັບ > ການອັບເດດລະບົບ. Software updates provide performance improvements, security patches, and new features.
5.3. ການຄຸ້ມຄອງການເກັບຮັກສາ
ອຸປະກອນມາພ້ອມກັບບ່ອນເກັບຂໍ້ມູນພາຍໃນ 128GB ແລະຮອງຮັບການເກັບຮັກສາທີ່ສາມາດຂະຫຍາຍໄດ້ເຖິງ 2TB ຜ່ານບັດ microSD. ຄຸ້ມຄອງຂອງທ່ານຢ່າງເປັນປົກກະຕິ files and applications to optimize performance. You can check storage usage in ການຕັ້ງຄ່າ > ບ່ອນເກັບຂໍ້ມູນ.
6. ການແກ້ໄຂບັນຫາ
If you encounter issues with your Redmi 15 5G, consider the following basic troubleshooting steps:
- ອຸປະກອນບໍ່ຕອບສະໜອງ: ກົດປຸ່ມເປີດປິດຄ້າງໄວ້ປະມານ 10 ວິນາທີເພື່ອບັງຄັບໃຫ້ຣີສະຕາດ.
- ບັນຫາເຄືອຂ່າຍ: Check if your SIM card is properly inserted. Try toggling Airplane Mode on and off. Verify your mobile data or Wi-Fi connection settings.
- ແອັບຯເຮັດວຽກຜິດປົກກະຕິ: ປິດ ແລະເປີດແອັບຄືນໃໝ່. ຖ້າບັນຫາຍັງຄົງຢູ່, ໃຫ້ລຶບລ້າງແຄດຂອງແອັບຯ ຫຼືຕິດຕັ້ງມັນຄືນໃໝ່.
- ການລະບາຍຫມໍ້ໄຟຢ່າງໄວວາ: ຫຼຸດຄວາມສະຫວ່າງໜ້າຈໍ, ປິດການນຳໃຊ້ແອັບພື້ນຫຼັງທີ່ບໍ່ຈຳເປັນ ແລະ ຈຳກັດການບໍລິການສະຖານທີ່.
- ປະສິດທິພາບຊ້າ: Clear cache, uninstall unused apps, and ensure sufficient free storage space.
For more complex issues, refer to the official Redmi support webເວັບໄຊ ຫຼືຕິດຕໍ່ບໍລິການລູກຄ້າ.
7. ຂໍ້ມູນຈໍາເພາະ
| ຄຸນສົມບັດ | ຂໍ້ມູນຈໍາເພາະ |
|---|---|
| ຊື່ຕົວແບບ | 25057RN09E |
| ຍີ່ຫໍ້ | Redmi |
| ລະບົບປະຕິບັດການ | Xiaomi HyperOS ອີງໃສ່ Android 15 |
| ຂະໜາດໜ້າຈໍ | 6.9 ນິ້ວ |
| ຄວາມລະອຽດ | ໓໒໐ × ໒໔໐ |
| ອັດຕາການໂຫຼດຂໍ້ມູນຄືນໃໝ່ | 144 Hz |
| ຕົວແບບ CPU | Snapdragon® 6s Gen 3 (Octa-core, up to 2.3GHz) |
| RAM ຂະຫນາດທີ່ຕິດຕັ້ງ | 4 GB (up to 16GB with Memory extension) |
| ຄວາມອາດສາມາດເກັບຮັກສາຫນ່ວຍຄວາມຈໍາ | 128 GB (ຂະຫຍາຍໄດ້ສູງສຸດ 2TB) |
| ຄວາມອາດສາມາດຫມໍ້ໄຟ | 7000 ລ້ານamp ຊົ່ວໂມງ |
| ກ້ອງຫຼັກ | 50MP AI Dual Camera |
| ກ້ອງໜ້າ | 8MP |
| ເຕັກໂນໂລຊີການເຊື່ອມຕໍ່ | Wi-Fi, 5G, NFC |
| ຄຸນນະສົມບັດພິເສດ | Dual Camera, Side Fingerprint Sensor, AI Face Unlock, GPS, IR Blaster |
| ສຽງ Jack | 3.5 ມມ |
| ສີ | Titan Grey |
| ນ້ໍາຫນັກລາຍການ | 6 ອອນ |
8. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
For detailed warranty information, please refer to the warranty card included with your product or visit the official Redmi website. For technical support, software updates, and additional resources, please visit the official Xiaomi support portal.





