1. Introduction and Overview
The artfone C1+ 4G is a SIM-free mobile phone designed for the elderly, featuring large buttons, a loud volume, and an SOS function for enhanced safety and ease of use. It supports 4G, 3G, and 2G networks, making it a versatile basic phone for calls and SMS messages. The device includes a charging dock and a built-in flashlight, prioritizing simplicity and accessibility.

Figure 1.1: artfone C1+ 4G mobile phone in its charging dock, highlighting its simple design and large keypad.

Figure 1.2: Overview of the artfone C1+ 4G, emphasizing its key features for senior users.
2. What's in the Box
- artfone C1+ 4G Mobile Phone
- Charging Base
- USB Cable (Type-C)
- Charger (Power Adapter)
- Lithium Ion Battery (1 included)

Figure 2.1: The complete package contents of the artfone C1+ 4G mobile phone.
3. Setup Guide
3.1. Inserting the SIM Card and Battery
- Carefully remove the back cover of the phone.
- Insert the Nano SIM card into the designated SIM slot. Ensure it is correctly oriented as shown in the diagram.
- (Optional) Insert a Micro SD card (up to 64 GB) into the Micro SD slot for expanded storage.
- Place the Lithium Ion battery into the battery compartment, aligning the gold contacts.
- Replace the back cover until it clicks securely into place.

Figure 3.1: Diagram illustrating the placement of the Micro SD card, Nano SIM card, and battery.
3.2. Charging the Phone
The artfone C1+ 4G offers two convenient charging methods:
- Using the Charging Base: Place the phone upright into the charging base. Ensure the phone is properly seated and the charging indicator appears on the screen.
- Direct USB-C Charging: Connect the provided USB-C cable directly to the phone's charging port and then to the power adapter.
It is recommended to fully charge the phone before first use. A full charge provides approximately 5-6 hours of talk time and 168-300 hours of standby time.

Figure 3.2: The phone charging in its convenient dock, highlighting battery capacity and standby time.
Video 3.1: A demonstration of the artfone C1+ 4G's features, including charging, large buttons, and simple interface.
4. Operating Instructions
4.1. Basic Call Functions
- Making a Call: Dial the desired number using the large keypad. Press the Green Call Button to initiate the call.
- Answering a Call: When the phone rings, press the Green Call Button to answer.
- Ending a Call: Press the Red End Call Button to end an active call.
- Voice Dialing: The phone supports voice dialing for added convenience.
4.2. Sending and Receiving SMS Messages
The phone allows for sending and receiving text messages. Navigate to the "Messages" menu option to compose new messages or view received ones.
4.3. SOS Function
The C1+ 4G features a dedicated SOS button on the back for emergencies. Up to 5 SOS contact numbers can be programmed.
- Setting SOS Numbers: Access the "SOS Setting" menu to add or modify emergency contacts.
- Activating SOS: In an emergency, press and hold the SOS button on the back of the phone. The phone will automatically call the programmed numbers sequentially until one is answered. It can also send messages during calls (this feature can be disabled).
- Canceling SOS: If the SOS button is pressed by mistake, the call can be canceled within 3 seconds.

Figure 4.1: The SOS button and its emergency call features.

Figure 4.2: Visual representation of how the SOS function connects to up to 5 pre-set contacts.
4.4. Volume Adjustment and Keypad Lock
- Volume Adjustment: Use the dedicated volume buttons on the side of the phone to adjust call and ringtone volume.
- Keypad Lock/Unlock: The phone features a lateral release button for quick keypad lock/unlock. This prevents accidental dialing.
- Scene Modes: Switch between ringing, vibration, and silent modes by long-pressing the '0' key.
5. Key Features
- Large Buttons and Clear Display: The phone is designed with large, easy-to-press buttons and a 1.77-inch screen with large fonts and clear menu icons for optimal visibility.

Figure 5.1: The phone's interface with large, easy-to-read elements.
- Loud Volume and Hands-Free: Equipped with a box speaker and receiver, the phone provides clear and loud audio, ideal for users with hearing difficulties. It also supports hands-free operation.

Figure 5.2: Illustration of the phone's loud speaker for clear communication.
- Long-Lasting Battery: The 1800mAh battery offers extended usage, providing 5-6 hours of continuous talk time and up to 12 days of standby time.

Figure 5.3: The phone's large battery capacity for extended use.
- Built-in Flashlight: A convenient flashlight can be activated or deactivated by pressing the left side button.

Figure 5.4: The integrated flashlight feature for convenience.
- Additional Features: Includes FM radio, Bluetooth connectivity, calculator, audio playback (MP3), and U disk functionality.

Figure 5.5: A visual summary of the phone's diverse functionalities.
- Anti-skid Design: The phone features an anti-skid body for a secure grip.

Figure 5.6: Detail of the phone's anti-skid design for improved handling.
6. Maintenance
- Keep the phone dry. Liquids containing minerals will corrode electronic circuits.
- Do not use or store the phone in dusty, dirty areas. Its moving parts and electronic components can be damaged.
- Do not store the phone in high temperatures. High temperatures can shorten the life of electronic devices, damage batteries, and warp or melt certain plastics.
- Do not store the phone in cold temperatures. When the phone returns to its normal temperature, moisture can form inside the phone and damage electronic circuit boards.
- Do not drop, knock, or shake the phone. Rough handling can break internal circuit boards and fine mechanics.
- Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the phone.
- Use only the supplied or approved replacement antenna. Unauthorized antennas, modifications, or attachments could damage the phone and may violate regulations.
7. Troubleshooting
- Phone does not turn on after inserting battery: Ensure the phone is charged. Connect it to the charger and allow it to charge for a period before attempting to power it on again.
- SIM card not recognized: Verify that the SIM card is inserted correctly into its slot. Refer to Section 3.1 for proper insertion steps.
- No camera: Please note that this mobile phone model does not include a camera.
- Network compatibility: The phone is compatible with 4G, 3G, and 2G networks. For best compatibility in the US, AT&T is suggested. If experiencing network issues, contact your carrier to ensure your plan supports this type of device.
8. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 2.36 x 1.57 x 0.59 inches |
| Item Weight | 5.3 ounces (150 Grams) |
| Model Number | C1+ 4G |
| Batteries | 1 Lithium Ion battery required (included) |
| Battery Capacity | 1800 mAh (Battery Power Rating) / 1400 mAh (Battery Capacity) |
| Operating System | Nucleus OS |
| Screen Size | 1.77 inches (Standing screen display size: 1.8 Inches) |
| Resolution | 480 x 320 |
| Wireless Communication Technologies | Cellular, Bluetooth |
| Connectivity Technologies | Bluetooth, USB |
| Special Features | Stereo Speakers, Basic Phone, 4G LTE, USB Type C, SOS |
| Human Interface Input | Keypad |
| Audio Jack | 3.5 mm |
| Memory Storage Capacity | 32 GB (Expandable up to 64 GB Micro SD card) |
| RAM Memory Installed Size | 1 GB |
| Color | Black |
| Manufacturer | artfone |

Figure 8.1: Detailed dimensions of the artfone C1+ 4G phone.
9. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or visit the official artfone website. Keep your proof of purchase for any warranty claims.




