1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Lychee GSM Quad-Band Wireless Fixed Phone. This device combines the functionality of a traditional desk phone with the flexibility of a GSM mobile network, supporting dual SIM cards and multiple languages. It is designed for ease of use in various environments, including homes, offices, and hotels.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1x Lychee GSM Quad-Band Wireless Fixed Phone
- 1x Handset
- 1x Coiled Handset Cord
- 1x Power Adapter and Cord
- 1x Rechargeable Lithium-ion Battery
- 1x User Manual (this document)

Image 2.1: The Lychee GSM Quad-Band Wireless Fixed Phone with its power adapter, battery, and coiled handset cord.
3. Product Overview
The Lychee GSM Fixed Phone features a clear LCD display, a backlit keypad, and an intuitive menu system. It supports various functions including hands-free calling, SMS, alarm, and calendar.

Image 3.1: Overview of the phone's buttons and display.
3.1 Button Functions
- Left Soft Key: Accesses the main menu in standby mode, or displays options.
- Right Soft Key: Accesses the phone book in standby mode, or displays options.
- Scroll Keys (Up/Down/Left/Right): Navigate through menus, adjust volume, or act as shortcuts in standby mode.
- OK Key: Confirms selections in menus, or selects the displayed option.
- Hands-free Key: Activates/deactivates speakerphone during a call.
- Start Button (Green): Initiates a call or answers an incoming call.
- End Button (Red): Ends a call, rejects an incoming call, or powers the phone on/off (long press).
- Call/Redial Key: Redials the last number called.
- Keypad Lock Key (*): Locks the keypad in standby mode.

Image 3.2: Key features of the Lychee GSM Fixed Phone.
4. Setup
Follow these steps to set up your Lychee GSM Quad-Band Wireless Fixed Phone:
- Insert the SIM Card: Locate the SIM card slot(s) on the back of the phone. Carefully insert your GSM SIM card(s) into the designated slot(s) until it clicks into place. Ensure the SIM card is correctly oriented.
- Insert the Battery: Open the battery compartment cover on the back of the phone. Connect the battery cable to the phone's battery connector. Place the battery into the compartment and close the cover.
- Connect Power Adapter: Plug the power adapter into the phone's charging port and then into a wall outlet. Allow the phone to charge for at least 2-3 hours before first use.
- Power On: Press and hold the red power button (End button) until the screen lights up. The phone will then search for a network.

Image 4.1: Step-by-step guide for initial setup.
5. Operating Instructions
5.1 Making and Receiving Calls
- To Make a Call: Enter the phone number using the keypad and press the green Start button.
- To Answer a Call: When the phone rings, press the green Start button.
- To End a Call: Press the red End button.
- Hands-free Calling: During a call, press the Hands-free key to activate the speakerphone. Press it again to switch back to the handset.
- Redial: In standby mode, press the Call/Redial key to redial the last number.
5.2 Sending and Receiving SMS
Navigate to the 'Messages' menu using the Left Soft Key. You can compose new messages, read received messages, and manage your inbox/outbox.
5.3 Language Settings
The phone supports multiple languages. To change the language, navigate to the 'Settings' menu, then 'Language', and select your preferred language (e.g., English, French, German, Italian, Spanish, Dutch).

Image 5.1: The phone's display showing various language options.
5.4 Volume Adjustment
During a call, use the Up/Down scroll keys to adjust the call volume. In standby mode, you can adjust ringtone volume through the 'Settings' menu.
5.5 Other Functions
The phone includes additional features such as an alarm clock and calendar, accessible through the main menu.
6. Maintenance
- Keep the phone dry. Liquids can corrode electronic circuits.
- Do not use or store the phone in dusty, dirty areas.
- Do not store the phone in hot or cold temperatures. Extreme temperatures can shorten the life of electronic devices.
- Do not attempt to open the phone. Unauthorized modifications can damage the device and void the warranty.
- Clean the phone with a soft, damp cloth. Do not use harsh chemicals or cleaning solvents.
7. Troubleshooting
7.1 No Network Signal / SIM Not Recognized
- Ensure the SIM card is correctly inserted. Power off the phone, re-insert the SIM card, and power on again.
- Verify that your SIM card is active and has sufficient credit/plan.
- Check if your SIM card supports 2G GSM networks (850/900/1800/1900Mhz). This phone operates on 2G networks.
- Move to an area with better network coverage. The external antenna helps improve signal stability.

Image 7.1: The phone's external antenna for enhanced signal reception.
7.2 Phone Does Not Power On
- Ensure the battery is properly connected and charged. Connect the phone to the power adapter and allow it to charge for some time.
- Check if the power adapter is working correctly and the power outlet has electricity.
7.3 Poor Call Quality
- Ensure the external antenna is properly attached and positioned for optimal signal.
- Move to an area with stronger network signal.
- Check the call volume settings.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Lychee |
| Model | GSM Quad-Band Wireless Fixed Phone |
| Color | Black |
| Operating Voltage | DC 5V |
| Battery | 1000 mAh, 3.7V Lithium-ion |
| Charging Voltage | 4.2V |
| Charging Time | 2-3 hours |
| Standby Time | Up to 48 hours |
| Screen Size | 2.4 inches |
| Dimensions (L x W x H) | 21 x 17 x 5.5 cm |
| Weight | 500 Grams |
| GSM Frequency Bands | 850/900/1800/1900Mhz |
| Material | Plastic |
| Special Features | Dual SIM support, Multilingual menu, Hands-free, SMS, Alarm, Calendar |
9. Warranty Information
This Lychee GSM Quad-Band Wireless Fixed Phone comes with a 1-year manufacturer warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or external causes.
Please retain your proof of purchase for warranty claims.
10. Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact your retailer or the Lychee customer support. Refer to the contact information provided with your purchase or visit the official Lychee website for support details.