1. Introduction
The Artfone A400 is a 4G unlocked senior phone designed for ease of use and reliable communication. It features large buttons, a clear display, and essential functions tailored for users who prioritize simplicity and accessibility. This manual provides comprehensive instructions for setting up, operating, and maintaining your Artfone A400 phone.
2. Package Contents
Please verify that all items are present in your product package:
- Artfone A400 Mobile Phone
- 1800mAh Battery
- Charging Dock
- USB Cable
- User Manual (this document)

Figure 2.1: Contents of the Artfone A400 package.
3. Setup Guide
3.1. Inserting the SIM Card and Battery
- Carefully remove the back cover of the phone.
- Insert your 4G compatible SIM card(s) into the designated slot(s) with the gold contacts facing down. Ensure it clicks into place.
- Insert the 1800mAh battery into the battery compartment, aligning the contacts.
- Replace the back cover until it securely snaps into place.
3.2. Charging the Phone
Before first use, fully charge the phone battery. The Artfone A400 comes with a convenient charging dock.
- Connect the USB cable to the charging dock and then to a power adapter (not included) or a USB port.
- Place the Artfone A400 phone into the charging dock, ensuring the charging contacts align. The phone will indicate that it is charging.
- Alternatively, you can connect the USB cable directly to the phone's charging port.

Figure 3.1: Artfone A400 phone and charging dock.
4. Operating Instructions
4.1. Power On/Off
- To power on: Press and hold the red End Call/Power button until the screen lights up.
- To power off: Press and hold the red End Call/Power button until the power off options appear, then select 'Power off'.
4.2. Making and Receiving Calls
- To make a call: Dial the number using the keypad and press the green Call button.
- To receive a call: Press the green Call button when the phone rings.
- To end a call: Press the red End Call button.

Figure 4.1: Large buttons and clear display for easy operation.
4.3. SMS Messaging
Navigate to the 'Message' menu to compose and read text messages. The large keypad facilitates easy typing.
4.4. Contacts Management
The phone supports storing up to 1000 contacts with photo caller ID. Navigate to the 'Contacts' menu to add, edit, or delete entries.
4.5. Speed Dial Function
Assign frequently called numbers to speed dial keys for quick access:
- M1/M2: Dedicated speed dial buttons. Configure these in the settings.
- Keys 2-9, *, #: Press and hold these keys to dial a pre-assigned contact. Configure these in the speed dial settings.
4.6. SOS Emergency Function
The SOS button provides a critical safety feature, allowing you to quickly contact pre-set emergency numbers.
- Setting up SOS numbers: Go to 'Settings' > 'SOS Settings' to add up to 5 emergency contacts.
- Using the SOS button: In an emergency, press and hold the SOS button located on the back of the phone. The phone will automatically dial the pre-set numbers sequentially and send an alert SMS.

Figure 4.2: SOS button and emergency contact setup.
4.7. Camera
The built-in 2MP HD camera allows you to capture photos. Access the camera from the main menu or by pressing the dedicated camera button (if available).
4.8. Time Voice Announcement
To hear the current time announced, press and hold the Volume + button for 3 seconds.

Figure 4.3: Activating time voice announcement.
4.9. Multimedia and Tools
The Artfone A400 includes several useful features:
- FM Radio: Listen to your favorite radio stations.
- Bluetooth: Connect to compatible Bluetooth devices like headsets.
- Calculator: Perform basic arithmetic operations.
- Alarm: Set multiple alarms for reminders.
- Calendar: View dates and manage events.
- Audio/Video Playback: Play media files stored on the phone (requires a memory card, not included).

Figure 4.4: Overview of the user-friendly interface menus.
5. Maintenance
5.1. Battery Care
The Artfone A400 is equipped with an 1800mAh battery designed for long standby and talk times. To maximize battery life:
- Always use the provided charging dock or USB cable for charging.
- Avoid extreme temperatures, which can degrade battery performance.
- Do not leave the phone uncharged for extended periods.

Figure 5.1: The 1800mAh battery provides extended usage.
5.2. Cleaning
Use a soft, dry cloth to clean the phone's screen and body. Avoid using harsh chemicals or abrasive materials.
6. Troubleshooting
If you encounter issues with your Artfone A400, refer to the following common problems and solutions:
| Problem | Possible Cause / Solution |
|---|---|
| Phone does not power on. | Battery may be depleted. Charge the phone for at least 30 minutes. Ensure battery is correctly inserted. |
| Cannot make or receive calls. | Check SIM card insertion. Ensure you have network signal. Verify your SIM card is active and has credit/plan. |
| Poor call quality / Low volume. | Adjust volume settings. Ensure nothing is blocking the speaker or microphone. Move to an area with better network coverage. |
| SOS function not working. | Ensure SOS numbers are correctly set up in the phone's settings. Verify network signal. |
| Phone freezes or is unresponsive. | Remove and reinsert the battery to perform a soft reset. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | ARF-A400+001 |
| Cellular Technology | 4G |
| Wireless Carrier | Unlocked (Works best with T-Mobile, SpeedTalk, Tello, MetroPCS, RedPocket. Not compatible with Verizon.) |
| Operating System | Nucleus OS |
| Display | 2.4" High-Contrast Screen |
| Battery Capacity | 1800mAh (up to 10 hours talk time, 7 days standby) |
| Camera | 2MP HD Camera |
| Memory Storage Capacity | 1 GB |
| RAM Memory Installed Size | 48 MB |
| CPU Model | MTK 8121 |
| CPU Speed | 1000 MHz |
| Item Weight | 10.4 ounces |
| Color | Silver |
| Included Components | USB Cable, Charging Dock, Battery |

Figure 7.1: Box speaker and receiver for clear sound.
8. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or contact Artfone customer service directly. Keep your purchase receipt as proof of purchase.
Manufacturer: artfone







