1. Introduction
This manual provides essential instructions for the safe and efficient use of your OPPO A5 5G smartphone (Model CPH2751). Please read this manual thoroughly before using your device.
1.1. What's in the Box
- OPPO A5 5G Smartphone
- Phone Case
- Power Adapter
- USB Cable
- Screen Protector (pre-applied or separate)
- SIM Tray Ejector

Image: Front and back view of the OPPO A5 5G smartphone, highlighting features like 45W SuperVOOC Flash Charge, Damage-Proof 360° Armour Body, 6000mAh Large Battery, and IP65 Water & Dust Resistance.
2. Initial Setup
2.1. SIM Card Installation
- Locate the SIM card tray on the side of your device.
- Insert the SIM tray ejector tool into the small hole next to the tray.
- Gently push until the tray pops out.
- Place your Nano-SIM card(s) and/or microSD card into the tray with the gold contacts facing down. The OPPO A5 5G supports Dual 5G SIM.
- Carefully reinsert the tray into the phone.

Image: Side profile of the OPPO A5 5G smartphone, illustrating the location of the SIM card tray and volume buttons.
2.2. Powering On/Off
- To Power On: Press and hold the Power button (located on the right side) until the OPPO logo appears.
- To Power Off: Press and hold the Power button, then select "Power Off" from the options on the screen.
- Restart: Press and hold the Power button, then select "Restart" from the options.
3. Operating Your Device
3.1. Display and Navigation
The OPPO A5 5G features a 16.94 cm (6.67-inch) HD+ LCD 120Hz Ultra Bright Display. This display offers enhanced smoothness for touch interactions. It also includes a Splash Touch feature, allowing for smooth control even when the screen has water droplets, mist, or oil stains.

Image: The OPPO A5 5G display showcasing its 120Hz refresh rate for a bright, smooth, and satisfying visual experience.
3.2. Camera Functions
Your device is equipped with an AI Dual Ultra-Clear Camera system:
- Main Camera: 50MP
- Portrait Camera: 2MP
- Front Selfie Camera: 8MP
Key camera features include AI Portrait Retouching, AI Clarity Enhancer, AI Reflection Remover, and AI Studio. The Dual-View Video function allows simultaneous recording from both front and rear cameras.

Image: Close-up of the OPPO A5 5G's rear camera module, featuring the dual camera setup and AI Camera System branding.
3.3. Battery and Charging
The OPPO A5 5G has a 6000mAh large battery. It supports 45W SuperVOOC charging for fast and efficient power replenishment. The battery is designed to maintain over 80% health after 1700 charge cycles, ensuring extended durability.

Image: An internal view of the OPPO A5 5G, highlighting the large 6000mAh battery component.
3.4. Connectivity
The device supports Bluetooth and Wi-Fi connectivity. It is equipped with Dual 5G SIM slots for enhanced network capabilities.
3.5. Special Features
- Damage-Proof 360° Armour Protection Technology: Features a high-strength alloy framework for component safety.
- IP65 Water and Dust Resistance: Provides protection against water splashes and dust ingress.
- Outdoor Mode: Boosts brightness, sound, and network performance for outdoor use.
- Glove Touch: Ensures screen responsiveness even with thick gloves or waterproof cases.

Image: The OPPO A5 5G smartphone being splashed with water, demonstrating its IP65 water and dust resistance.

Image: The OPPO A5 5G smartphone shown with a cracked ground effect, illustrating its 360° Armour Body and enhanced impact resistance.

Image: The OPPO A5 5G mounted on a motorcycle, demonstrating the Outdoor Mode for boosted performance and Glove Touch for screen responsiveness.
4. Maintenance
4.1. Care and Cleaning
- Use a soft, lint-free cloth to clean the screen and body of the phone.
- Avoid using harsh chemicals or abrasive materials.
- Keep the device away from extreme temperatures and direct sunlight.
- The device has IP65 water and dust resistance, but it is not fully waterproof. Avoid submerging it in water.
4.2. Software Updates
Regularly check for and install software updates to ensure optimal performance, security, and access to new features. You can usually find this option in the phone's settings under "About Phone" or "System Updates".
5. Troubleshooting
If you encounter issues with your OPPO A5 5G, try the following common solutions:
- Device not responding: Press and hold the Power button for about 10-15 seconds to force a restart.
- Battery draining quickly: Check background app usage, reduce screen brightness, disable unnecessary features like GPS or Bluetooth when not in use.
- Network connectivity issues: Toggle Airplane Mode on and off, restart the device, or check your SIM card installation.
- Apps crashing: Clear the app's cache and data in settings, or reinstall the app.
- Slow performance: Close unused apps, clear cache, or free up storage space.
For more complex issues, refer to the official OPPO support website or contact customer service.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | CPH2751 |
| Operating System | Android 14 (ColorOS 15.0) |
| RAM | 8 GB |
| Internal Storage | 128 GB |
| Screen Size | 16.94 cm (6.67 Inches) HD+ LCD |
| Display Refresh Rate | 120Hz |
| Processor | MediaTek Dimensity 6300 |
| Main Camera | 50MP + 2MP (Portrait) |
| Front Camera | 8MP |
| Battery Capacity | 6000mAh |
| Charging | 45W SuperVOOC |
| Connectivity | Dual 5G SIM, Bluetooth, Wi-Fi |
| Water & Dust Resistance | IP65 |
| Dimensions (LxWxH) | 16.5 x 7.6 x 0.8 cm |
| Weight | 195 g |
| Manufacturer | OPPO MOBILES INDIA PVT LTD. |
| Country of Origin | India |
7. Safety Information
7.1. General Safety
- Do not attempt to disassemble or modify the device.
- Use only OPPO-approved chargers and accessories.
- Avoid exposing the device to extreme temperatures, direct sunlight, or fire.
- Keep the device away from medical devices, as it may interfere with their operation.
- Dispose of the device and its battery responsibly according to local regulations.
7.2. Battery Safety
- Do not puncture, drop, or expose the battery to high impact.
- If the battery appears damaged or swollen, discontinue use immediately.
- Do not place the battery in direct sunlight or near heat sources.
8. Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official OPPO website. You can also contact OPPO customer service at 18001032777.
Manufacturer: OPPO MOBILES INDIA PVT LTD., 5th FLOOR, Tower B, BUILDING, N-8, DLF Cyber City, DLF Phase 2, Gurugram, Haryana 122002.





