1. Introduction
This manual provides essential information for setting up, operating, and maintaining your OPPO A74 smartphone. The OPPO A74 is a 4G/LTE smartphone featuring a 6.43-inch AMOLED display, 128GB of internal storage, 6GB of RAM, and a 5000mAh battery. It operates on Android 11 with ColorOS 11.1 and is powered by a Qualcomm Snapdragon 662 Octa-core processor.
2. What's in the Box
Verify that the following items are included in your product package:
- OPPO A74 Smartphone
- SIM Tray Ejector
- Charging Adapter (may vary by region)
- USB Cable (may vary by region)
- Protective Case (may vary by region)
- Quick Start Guide (this document)
3. Setup
3.1. SIM Card Installation
The OPPO A74 supports Dual-SIM (Nano SIM) functionality. Follow these steps to install your SIM card(s):
- Locate the SIM card tray on the side of your device.
- Insert the provided SIM tray ejector tool into the small hole next to the tray and press gently until the tray pops out.
- Place your Nano SIM card(s) into the designated slots on the tray. Ensure the gold contacts face downwards and the cut corner aligns correctly.
- Carefully reinsert the SIM tray back into the phone until it is flush with the device's side.

Image: Front view of the OPPO A74 smartphone, showing the display and front camera cutout.
Important Network Compatibility Note:
This smartphone is designed for GSM networks. It is not compatible with CDMA networks, including VERIZON, SPRINT, or US CELLULAR in the USA. Please verify network compatibility with your service provider before use. The device supports the following frequencies:
- SIM CARD 1: 2G: GSM 850/900/1800/1900; 3G: HSDPA 850(B5)/900(B8)/2100(B1); 4G: LTE 700(B28)/800(B20)/850(B5)/900(B8)/1800(B3)/2100(B1)/2300(B40)/2500(B41)/2600(B7)/2600(B38)
- SIM CARD 2: 2G: GSM 850/900/1800/1900
3.2. Powering On Your Device
Press and hold the Power button (located on the right side of the phone) until the OPPO logo appears on the screen. The device will then boot up.
3.3. Initial Setup
Upon first power-on, follow the on-screen prompts to complete the initial setup, which includes selecting your language, connecting to Wi-Fi, setting up your Google account, and configuring security features like fingerprint unlock or facial recognition.
4. Operating Your Device
4.1. Display and Navigation
The OPPO A74 features a 6.43-inch AMOLED display with a resolution of 1080 x 2400 pixels. Navigate the interface using touch gestures: tap to select, swipe to scroll, pinch to zoom.
4.2. Camera Functions
Your device is equipped with multiple cameras. To access the camera, tap the Camera icon on your home screen or app drawer. You can switch between front and rear cameras, select different modes (e.g., Photo, Video, Portrait), and adjust settings.

Image: Rear view of the OPPO A74 smartphone, showing the camera module and OPPO branding.
4.3. Connectivity
The OPPO A74 supports 4G/LTE cellular connectivity and Wi-Fi. To manage connections, go to Settings > Wi-Fi or Settings > Mobile Network. Bluetooth connectivity is also available for connecting to wireless accessories.
4.4. Storage and Memory
The device comes with 128GB of internal storage and 6GB of RAM. Storage can be expanded using a microSDXC card (sold separately) in the dedicated slot within the SIM tray.
5. Maintenance
5.1. Battery Care
The OPPO A74 is equipped with a 5000mAh non-removable Lithium Polymer battery. To maximize battery life:
- Avoid extreme temperatures.
- Use the original charger and cable.
- Avoid fully discharging the battery frequently.
- Adjust screen brightness and disable unnecessary features (e.g., GPS, Bluetooth) when not in use.
5.2. Software Updates
Regularly check for and install software updates to ensure optimal performance and security. Go to Settings > About Phone > Software Update.
5.3. Cleaning Your Device
Use a soft, lint-free cloth to clean the screen and body of your phone. Avoid using harsh chemicals or abrasive materials.
6. Troubleshooting
If you encounter issues with your OPPO A74, consider the following common solutions:
- Device unresponsive: Press and hold the Power button for about 10-15 seconds to force a restart.
- Network issues: Ensure your SIM card is correctly installed and your mobile data is enabled. Check your network compatibility as detailed in Section 3.1. Try toggling Airplane Mode on and off.
- App crashes or slowdowns: Close background applications, clear app cache (Settings > App Management > [App Name] > Storage Usage > Clear Cache), or restart your device.
- Battery draining quickly: Review Section 5.1 on Battery Care. Check battery usage in Settings to identify power-hungry apps.
- Fingerprint sensor issues: Ensure your finger is clean and dry. Re-register your fingerprints if problems persist.
For persistent issues, consult the official OPPO support website or contact customer service.
7. Specifications
Below are the key technical specifications for the OPPO A74:
| Model Name | OPPO A74 |
| Operating System | Android 11.0, ColorOS 11.1 |
| Processor | Qualcomm SM6115 Snapdragon 662 (11 nm), Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
| RAM | 6 GB |
| Internal Storage | 128 GB (expandable via microSDXC) |
| Display | 6.43 inches AMOLED, 1080 x 2400 pixels |
| Battery Capacity | 5000 mAh Lithium Polymer (non-removable) |
| Rear Camera | Multiple lenses (specific resolution not provided in source, but typically includes a main sensor) |
| Front Camera | Yes |
| Connectivity | 4G/LTE, Wi-Fi, Bluetooth |
| SIM Type | Dual Nano-SIM |
| Dimensions | 6.31 x 2.91 x 0.31 inches (160.3 x 73.8 x 7.95 mm) |
| Weight | 6.2 ounces (175 grams) |
8. Warranty and Support
Your OPPO A74 device is covered by a limited warranty. Please refer to the warranty card included in your original packaging or visit the official OPPO website for detailed warranty terms and conditions specific to your region.
For technical support, service, or further inquiries, please visit the official OPPO support website or contact their customer service hotline. Contact information can typically be found on the OPPO website or in your device's settings under 'About Phone'.





