Introduction
This manual provides essential instructions for setting up, operating, maintaining, and troubleshooting your TTfone TT150 mobile phone. Please read it carefully to ensure proper use and to maximize the device's features.

Figure 1: TTfone TT150 Mobile Phone Overview (Blue Model)
1. Setup
1.1 Unboxing and Package Contents
Verify that all items are present in the package:
- TTfone TT150 Mobile Phone
- Lithium-ion Battery
- USB Cable
- User Manual
1.2 Battery Installation
- Remove the back cover of the phone by gently prying it open from the notch.
- Align the gold contacts of the Lithium-ion battery with the contacts in the battery compartment.
- Insert the battery firmly into place.
- Replace the back cover, ensuring it clicks securely.

Figure 2: Battery Installation and Charging Indication
1.3 SIM Card Installation (Dual SIM)
The TT150 supports two SIM cards, allowing you to manage two different numbers or networks simultaneously.
- Ensure the phone is powered off and the battery is removed.
- Locate the SIM card slots (SIM1 and SIM2) beneath the battery compartment.
- Carefully insert your 2G compatible SIM cards into the designated slots, ensuring the gold contacts face downwards and the cut corner aligns correctly.
- Reinsert the battery and replace the back cover.

Figure 3: Dual SIM Card Slots
Note: This phone operates exclusively on 2G networks. It is not compatible with 3G networks such as Three, Smarty, and ID Mobile.
1.4 Charging the Battery
- Connect the USB cable to the charging port on the phone.
- Connect the other end of the USB cable to a compatible USB power adapter or computer.
- The battery indicator on the screen will show charging status.
- Once fully charged, disconnect the charger. A full charge provides up to 5 days of standby time or 5 hours of talk time.

Figure 4: Charging the TT150 Battery
1.5 Powering On/Off
- To Power On: Press and hold the Power/End Call button (red button) until the screen lights up.
- To Power Off: Press and hold the Power/End Call button until the power-off options appear, then select "Power off".
2. Operating Instructions
2.1 Basic Call Functions
- Making a Call: Enter the phone number using the keypad and press the Call button (green button).
- Answering a Call: Press the Call button when the phone rings.
- Ending a Call: Press the Power/End Call button.
- Adjusting Volume: Use the navigation keys during a call to adjust the earpiece volume.

Figure 5: Dialing a Number
2.2 Messaging
To send and receive text messages:
- From the main menu, navigate to "Messages".
- Select "Write message" to compose a new text.
- Enter the recipient's number or select from contacts.
- Type your message using the keypad.
- Press "Send".

Figure 6: Main Menu Interface
2.3 Camera
The TT150 features a 0.3-megapixel camera for basic photo and video capture.
- Taking Photos: Navigate to the "Camera" application from the menu. Frame your shot and press the central navigation key to capture.
- Flashlight Function: The camera's LED can be used as a flashlight. Activate it via the side button or through the menu.

Figure 7: Rear Camera Detail
2.4 Bluetooth Connectivity
Connect your TT150 to other Bluetooth-enabled devices such as headsets, speakers, or car kits.
- Go to "Settings" > "Bluetooth".
- Turn Bluetooth "On".
- Select "Search for devices" to find nearby Bluetooth accessories.
- Select the desired device and follow on-screen prompts to pair.
2.5 Media Player and FM Radio
Enjoy music and videos stored on your phone or a Micro SD card (up to 32GB). The phone also features an FM radio.
- Media Player: Access "Multimedia" from the menu to play audio or video files.
- FM Radio: Select "FM Radio" from the menu. You can listen via the built-in speaker or connected headphones (3.5mm audio jack).
2.6 Alarm Function
Set up to three alarms for reminders.
- Navigate to "Tools" > "Alarm".
- Select an alarm slot to configure.
- Set the time, repetition, alarm tone, and volume.
- Save your settings.
2.7 Games
The TT150 comes with a pre-loaded game for entertainment. Access it via the "Games" option in the main menu.
2.8 LED Flashlight
Activate the bright LED flashlight using the dedicated button on the side of the phone or through the phone's menu for illumination in dark environments or as a signal light.
3. Maintenance
3.1 Battery Care
- To prolong battery life, avoid exposing the phone to extreme temperatures.
- Charge the battery fully before first use.
- Do not leave the battery completely discharged for extended periods.
3.2 Cleaning
Wipe the phone with a soft, dry cloth. Avoid using liquid cleaners or abrasive materials.
3.3 Storage
If storing the phone for an extended period, ensure the battery is partially charged (around 50%) and store it in a cool, dry place.
4. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Phone does not power on | Battery is discharged or not installed correctly. | Charge the battery. Ensure the battery is correctly inserted. |
| Cannot make/receive calls | No network signal, SIM card not installed, or SIM card not 2G compatible. | Check network coverage. Reinstall SIM card. Ensure your SIM card uses a 2G network (not 3G like Three, Smarty, ID Mobile). |
| Poor call quality | Weak network signal or interference. | Move to an area with better signal. Avoid sources of interference. |
| Battery drains quickly | Frequent use, background applications, or old battery. | Reduce screen brightness. Close unused applications. Consider replacing the battery if it's old. |
5. Specifications
| Feature | Detail |
|---|---|
| Model | TT150 |
| Brand | TTfone |
| Operating System | TTfone OS |
| Dimensions (L x W x H) | 10.6 x 5 x 0.9 cm |
| Weight | 160 grams |
| Battery | 1 Lithium-ion (included), 600 mAh |
| Talk Time | Up to 5 hours |
| Standby Time | Up to 5 days |
| Display Size | 1.8 inches |
| Camera | 0.3 Megapixel (Rear) |
| Connectivity | Bluetooth, 2G Cellular |
| SIM Support | Dual SIM |
| Audio Jack | 3.5 mm |
| Expandable Storage | Micro SD card slot (up to 32GB) |
| Special Features | Camera, Bluetooth, Dual SIM, Text/Messaging, Basic Phone, Media Player, FM Radio, Alarm, Games, LED Flashlight |
6. Warranty and Support
For warranty information, please refer to the documentation provided at the time of purchase or contact TTfone customer support. Information regarding spare parts availability is currently unavailable.
For further assistance or technical support, please visit the official TTfone website or contact their customer service department.





