Introduction
This manual provides essential instructions for setting up, operating, and maintaining your Boost Mobile LG K3 prepaid cell phone. Please read this guide thoroughly to ensure proper use and to maximize the features of your device.
What's in the Box
Verify that all items are present in your product packaging:
- LG K3 Cell Phone
- SIM Card
- Wall Charger
- User Manual (this document)
Setup
1. Inserting the SIM Card
Before powering on your device, you must insert the provided SIM card. Locate the SIM card slot, typically on the side or under the battery cover. Carefully insert the SIM card into the designated slot, ensuring it is correctly oriented as indicated by the diagram on the phone or in the battery compartment.
2. Charging the Battery
Connect the wall charger to your phone's charging port and plug it into a power outlet. Allow the phone to charge completely before initial use. The battery indicator on the screen will show charging progress.
3. Initial Power On
Press and hold the Power button (usually located on the side) until the LG logo appears. Follow the on-screen prompts to complete the initial setup, including language selection, Wi-Fi connection, and Google account setup.

Image: Front view of the LG K3 cell phone, displaying the screen and the LG logo at the bottom.
Operating Your Phone
1. Basic Navigation
The LG K3 features a touchscreen interface. Tap icons to open applications, swipe to navigate between screens, and pinch to zoom. The Home, Back, and Recent Apps buttons (on-screen or physical) provide primary navigation.
2. Making Calls
Open the Phone application. Enter the desired phone number using the dial pad and tap the call icon. To answer an incoming call, swipe the green phone icon. To decline, swipe the red phone icon.
3. Sending Messages
Launch the Messaging application. Tap the 'New Message' icon, enter the recipient's number or select from contacts, and type your message. Tap the send icon to transmit.
4. Connecting to Wi-Fi
Go to Settings > Wi-Fi. Toggle Wi-Fi on. The phone will scan for available networks. Select your desired network, enter the password if prompted, and tap Connect.
5. Camera Functions
The LG K3 is equipped with a 5MP rear-facing camera and a front-facing camera. Open the Camera application to take photos or record videos. Tap the shutter button to capture an image. Use the camera switch icon to toggle between front and rear cameras.

Image: Rear view of the LG K3 cell phone, highlighting the main camera lens and LED flash.
6. Managing Storage
The phone has 8GB of internal memory. To expand storage for media files, you can insert a microSD card into the dedicated slot. Navigate to Settings > Storage to view memory usage and manage files.

Image: Close-up of the LG K3 phone screen, showing the digital clock and date on a wallpaper.
Maintenance
1. Cleaning Your Device
Use a soft, lint-free cloth to clean the screen and body of your phone. Avoid using harsh chemicals or abrasive materials, which can damage the device's surface.
2. Battery Care
To prolong battery life, avoid exposing your phone to extreme temperatures. It is recommended to use only the charger provided with your device. For optimal performance, avoid frequently draining the battery completely or keeping it at 100% charge for extended periods.
Troubleshooting
- Phone not turning on: Ensure the battery is charged. Connect the charger and wait a few minutes before attempting to power on again.
- Poor signal or no network: Check that the SIM card is correctly inserted. Move to an area with better network coverage. Contact your service provider if the issue persists.
- Applications crashing or freezing: Close and restart the application. If the problem continues, restart the phone. Consider clearing the app's cache via Settings > Apps.
- Limited storage space: Delete unnecessary files, photos, or apps. Move media to a microSD card if installed.
Specifications
| Feature | Detail |
|---|---|
| Model Name | LG K3 |
| Operating System | Android 6.0 Marshmallow |
| Processor | Qualcomm Snapdragon 210 Quad-core 1.1GHz |
| RAM | 1 GB |
| Internal Storage | 8 GB (expandable via microSD slot) |
| Screen Size | 4.5 Inches |
| Resolution | 720 x 1280 |
| Rear Camera | 5 MP |
| Front Camera | Yes |
| Cellular Technology | 4G LTE |
| Connectivity | Wi-Fi, GPS |
| Audio Jack | No |
| Battery Capacity | 4000 Milliamp Hours |
| Color | Black |
Warranty and Support
For warranty information or technical support, please refer to the documentation provided by Boost Mobile or LG at the time of purchase. You may also visit the official Boost Mobile or LG websites for further assistance and contact details.





