1. Introduction
Welcome to the user manual for your new OSCAL C20 Pro smartphone. This guide provides essential information to help you set up, operate, maintain, and troubleshoot your device. Please read this manual carefully to ensure proper use and to maximize the performance of your smartphone.
Figure 1: OSCAL C20 Pro Smartphone (Black)
2. Package Contents
Ensure all items are present in your product package:
- OSCAL C20 Pro Smartphone x1
- User Manual x1
- Power Adapter x1
- Micro-USB Cable x1
3. Device Overview
3.1 Design and Aesthetics
The OSCAL C20 Pro features a unibody design, weighing approximately 156g. Its slim profile and curved sides contribute to a comfortable grip and modern appearance. The rear panel is treated with professional plating and sandblasting, creating a water ripple pattern in various vibrant colors.
Figure 2: OSCAL C20 Pro Unibody Design
3.2 Key Features
The C20 Pro integrates several key features for daily use:
- 6.088-inch HD+ Waterdrop Display
- Dual 4G SIM support with Dual Standby
- Android 11 Operating System
- 8MP Rear Camera and 2MP Front Camera
- 2GB RAM + 32GB ROM (expandable up to 128GB via TF card)
- 3380mAh Li-Po Battery
Figure 3: OSCAL C20 Pro Key Features
4. Setup
4.1 Inserting SIM and TF Cards
- Locate the SIM card tray on the side of the device.
- Use the provided SIM ejector tool to open the tray.
- Place your Nano-SIM cards (up to two) and/or a TF (microSD) card into the designated slots on the tray. Ensure the gold contacts are facing down.
- Carefully reinsert the tray into the phone.
4.2 Powering On/Off
- To Power On: Press and hold the Power button until the OSCAL logo appears.
- To Power Off: Press and hold the Power button, then select 'Power off' from the options on the screen.
- To Restart: Press and hold the Power button, then select 'Restart' from the options on the screen.
4.3 Initial Setup Wizard
Upon first power-on, follow the on-screen instructions to complete the initial setup, including language selection, Wi-Fi connection, Google account login, and security settings.
5. Operating System
The OSCAL C20 Pro runs on the Android 11 operating system, offering a user-friendly interface and enhanced privacy features. It includes an App Freezer function to manage background applications, which can help improve performance and reduce power consumption.
Figure 4: Android 11 OS Interface and App Freezer
6. Display Features
The device features a 6.088-inch HD+ waterdrop display with a resolution of 720*1560 pixels. It offers a 19.5:9 aspect ratio and an 85% screen-to-body ratio, providing an immersive visual experience with vibrant colors and clear details.
Figure 5: Display Specifications
7. Performance
Powered by an Unisoc Octa-core SC9863A processor, the OSCAL C20 Pro delivers smooth and stable performance for everyday tasks, video streaming, and light gaming. It comes with 2GB of RAM and 32GB of internal storage, which can be expanded up to 128GB using a TF (microSD) card.
Figure 6: Performance Overview
8. Camera Features
The OSCAL C20 Pro is equipped with an 8MP rear camera and a 2MP front camera. It supports various shooting modes, including panorama, time-lapse, and professional mode, allowing for versatile photography.
Figure 7: Camera Modules
9. Connectivity
The C20 Pro offers comprehensive connectivity options:
- Network: GSM, 3G, 4G LTE (Dual SIM support)
- Wi-Fi: 802.11 a/b/g/n/ac
- Bluetooth: Bluetooth 4.2
- Navigation: GPS, GLONASS, Beidou
- USB: Micro-USB
- Audio: 3.5mm Headphone Jack
- Other: FM Radio, Face Unlock
10. Battery
The device is powered by a non-removable 3380mAh Li-Po battery. It supports 5W (5V/1A) charging. For optimal battery life, use the provided power adapter and cable.
11. Maintenance
11.1 Cleaning Your Device
- Use a soft, lint-free cloth to clean the screen and body of the phone.
- Avoid using harsh chemicals, abrasive cleaners, or compressed air.
- Do not expose the device to excessive moisture.
11.2 Software Updates
Regularly check for and install software updates to ensure your device has the latest features, security patches, and performance improvements. You can usually find this option in the phone's Settings menu under 'System' or 'About phone'.
12. Troubleshooting
If you encounter issues with your OSCAL C20 Pro, refer to the following common solutions:
| Problem | Solution |
|---|---|
| Device does not turn on | Ensure the battery is charged. Connect to the charger for at least 10 minutes, then try powering on. |
| Poor network signal | Check SIM card insertion. Move to an area with better network coverage. Restart the device. |
| Apps crashing or freezing | Clear app cache/data in Settings > Apps. Restart the device. Use the App Freezer feature for rogue apps. |
| Battery drains quickly | Reduce screen brightness. Close unused background apps. Disable Wi-Fi/Bluetooth when not in use. |
| Face unlock not working | Ensure your face is well-lit and positioned correctly. Re-register your face data in security settings. |
13. Specifications
Detailed technical specifications for the OSCAL C20 Pro:
| Feature | Detail |
|---|---|
| Brand | OSCAL |
| Model Name | C20 PRO |
| Operating System | Android 11.0 |
| Processor | Unisoc Octa-core SC9863A |
| RAM | 2 GB |
| Internal Storage | 32 GB |
| Expandable Storage | SD card slot up to 128GB |
| Screen Size | 6.088 Inches |
| Resolution | 720 x 1560 HD+ |
| Aspect Ratio | 19.5:9 |
| Screen-to-body Ratio | 85% |
| Rear Camera | 8 Megapixels |
| Front Camera | 2 Megapixels |
| Battery Type | Lithium-polymer |
| Battery Capacity | 3380mAh |
| Charging | 5W (5V/1A) |
| Connectivity | GSM, 3G, 4G, Wi-Fi 802.11 a/b/g/n/ac, Bluetooth 4.2, GPS, GLONASS, Beidou, Micro USB |
| Sensors | Proximity, Light, G-sensor, Face Recognition |
| Dimensions | 155.4 x 73.5 x 9.5 mm |
| Weight | 156 g |
14. Warranty and Support
Information regarding the product warranty and customer support details are typically provided with your purchase documentation or on the manufacturer's official website. Please refer to these resources for specific warranty terms, conditions, and contact information for technical assistance.
Note: Specific warranty duration and support contact information were not available in the provided product data.
