1. Introduction
This manual provides essential information for the safe and efficient operation of your GOWENIC F138 2G Flip Phone. Please read this manual thoroughly before using the device to ensure proper functionality and to understand all features.
2. Package Contents
Carefully unpack your GOWENIC F138 Flip Phone and verify that all items listed below are present and in good condition.
- 1 x GOWENIC F138 Flip Phone
- 1 x Charge Cable (Micro USB)
- 1 x Charging Base
- 1 x User Manual

Image: The GOWENIC F138 Flip Phone, its charging base, Micro USB cable, and the product packaging.
3. Setup and First Use
3.1 Installing SIM Cards and Memory Card
The GOWENIC F138 supports two SIM cards and one memory card (up to 16GB, not included). Follow these steps to install them:
- Open the back cover of the phone.
- Locate the SIM card slots (SIM1, SIM2) and the memory card slot.
- Insert your SIM cards into the designated slots. Ensure they are correctly oriented.
- If using a memory card, push down to open the memory card slot cover, insert the card, and close the cover.
- Replace the back cover.

Image: Internal view of the phone showing the two SIM card slots (SIM1, SIM2) and the memory card slot labeled 'Flash card'.
3.2 Charging the Battery
Before first use, fully charge the phone's 1200mAh lithium battery.
- Using the Charging Base: Place the phone into the charging base. Ensure the charging contacts align.
- Using the Micro USB Cable: Connect the Micro USB cable to the phone's charging port and the other end to a compatible USB power adapter.
The charging port is located on the side of the phone when closed.

Image: Side view of the GOWENIC F138 Flip Phone, highlighting the Micro USB charging port.
3.3 Powering On/Off
- To Power On: Long press the power button until the screen illuminates.
- To Power Off: Long press the power button until the power-off options appear, then select 'Power Off'.
4. Operating Instructions
The GOWENIC F138 is designed for ease of use with a clear 2.4-inch display and large buttons.

Image: The GOWENIC F138 Flip Phone in its open position, displaying the screen and the large button keypad.
4.1 Basic Navigation
Use the directional keys and the central 'OK' button to navigate through menus and select options. The 'Menu' button typically accesses the main functions, while the 'Back' or 'Clear' button allows you to return to the previous screen or delete input.
4.2 Key Features
The F138 includes several useful functions:
- Phone Book: Store and manage your contacts.
- Camera: Capture photos with the integrated 30W camera.
- FM Radio: Listen to FM radio stations.
- Alarm Clock: Set multiple alarms.
- Recording: Record audio memos.
- Calendar: Keep track of dates and events.
- Flashlight (Torch): Activate the built-in flashlight for illumination.
- Calculator: Perform basic arithmetic.
- Electronic Book: Read e-books (requires memory card).
- Strong Vibration Reminder: Provides a noticeable vibration for incoming calls or messages.
- SOS Button: A dedicated button for emergency calls (configure emergency contacts in settings).
- Speed Dial: Assign frequently called numbers to specific keys for quick dialing.

Image: The GOWENIC F138 Flip Phone alongside icons representing its various functions, including Calendar, Dual SIM support, SOS Button, Alarm Clock, Speed Dial, Camera, Torch, and FM Radio.

Image: The GOWENIC F138 Flip Phone in its closed position, with the flashlight function activated and emitting light.
5. Maintenance
To ensure the longevity and optimal performance of your GOWENIC F138 Flip Phone, follow these maintenance guidelines:
- Keep the phone dry. Moisture can damage electronic circuits.
- Avoid extreme temperatures. High temperatures can shorten the life of electronic devices and warp or melt certain plastics.
- Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the phone. Wipe it with a soft, damp cloth.
- Handle the phone gently. Dropping, knocking, or shaking the phone can damage internal circuit boards.
- Do not attempt to disassemble the phone. Unauthorized modifications can void your warranty and cause damage.
6. Troubleshooting
If you encounter issues with your GOWENIC F138, try the following basic troubleshooting steps:
- Phone does not power on: Ensure the battery is charged. Connect the phone to the charger and try again.
- No network signal: Check that SIM cards are correctly inserted. Ensure you are in an area with 2G GSM coverage.
- Cannot make/receive calls: Verify SIM card activation with your service provider. Check network signal strength.
- Screen is unresponsive: Power off the phone and restart it.
- Battery drains quickly: Reduce screen brightness, close unused applications, or limit background processes. Ensure the battery is fully charged before use.
If problems persist, contact customer support for further assistance.
7. Specifications
| Feature | Specification |
|---|---|
| Model | F138 |
| Screen Size | 2.4 Inches |
| Battery Capacity | 1200mAh Lithium Battery |
| Internal Memory | 32MB + 32MB |
| Memory Card Support | Up to 16GB (Not Included) |
| Camera | 30W (FHD) |
| Frequency Range | GSM800 / 850 / 900 / 1800 |
| Network Type | 2G GSM |
| Form Factor | Clamshell |
| Material | ABS |
| Supported Languages | English, French, Spanish, Portuguese, Vietnamese, Turkish, Russian, Arabic, Thai |
| Interface | Micro USB |
| SIM Card Slots | Dual SIM |
| Item Weight | 7.4 ounces (Approx. 210g) |
| Package Dimensions | 9.57 x 6.14 x 2.76 inches |
8. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or contact GOWENIC customer service through their official channels. Keep your purchase receipt as proof of purchase.





