1. Product Overview
The Maxcom MM828 is a user-friendly 4G VoLTE flip phone designed for simplicity and reliability. It features a clear 2.4-inch display, large buttons, and essential functions for communication. Key features include a dedicated SOS button for emergencies, dual SIM support for flexible network usage, and a long-lasting battery with convenient USB-C charging.

Image: Maxcom MM828 flip phone in its closed position, showcasing its compact and sleek blue design with the Maxcom logo visible.

Image: Maxcom MM828 flip phone in its open position, revealing the 2.4-inch screen and the large, easy-to-read keypad with clearly labeled buttons.
2. Getting Started: Setup
2.1 Package Contents
Before you begin, ensure all items are present in the package:
- Maxcom MM828 Mobile Flip Phone
- Battery (Lithium-ion)
- USB-C Charging Cable
- User Manual (this document)
2.2 Battery and SIM Card Installation
- Remove the Back Cover: Gently pry open the back cover of the phone using the notch provided, typically located at the bottom edge.
- Insert the Battery: Align the battery contacts with the terminals inside the phone compartment. Press the battery down firmly until it clicks into place.
- Insert SIM Card(s): The MM828 supports dual SIM cards. Locate the SIM card slots. Carefully insert your SIM card(s) into the designated slots with the gold contacts facing down, following the orientation indicated on the phone.
- Replace the Back Cover: Align the back cover with the phone and press firmly around the edges until it snaps securely into place.

Image: Side profile of the Maxcom MM828 flip phone, illustrating its compact folded form factor.
2.3 Initial Charging
Before first use, fully charge the phone's battery.
- Connect the USB-C charging cable to the phone's USB-C port.
- Connect the other end of the cable to a compatible USB power adapter (not included) or a computer's USB port.
- The charging indicator on the screen will show the charging status.
- Once fully charged, disconnect the charger.
2.4 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 on the screen. Select "Power Off" and confirm.
3. Operating Your Phone
3.1 Making and Receiving Calls
- To Make a Call:
- Open the flip phone.
- Dial the phone number using the keypad.
- Press the Call button (green button) to initiate the call.
- To Receive a Call:
- When the phone rings, open the flip or press the Call button to answer.
- To end a call, press the End Call button.

Image: A person holding the open Maxcom MM828 flip phone to their ear, demonstrating its use for making calls.
3.2 Sending Text Messages (SMS)
- From the main menu, navigate to "Messages".
- Select "Write Message" or "New SMS".
- Enter your message using the keypad. Press the appropriate key multiple times for different letters (T9 input may be available).
- Enter the recipient's phone number or select from your contacts.
- Press "Send".
3.3 SOS Button Functionality
The SOS button is a critical safety feature, allowing quick contact with pre-set emergency numbers.
- Setting Up SOS Contacts:
- Go to "Settings" > "SOS Settings".
- Add up to 5 emergency contact numbers. These numbers will be called sequentially when the SOS button is pressed.
- You can also enable an SOS message to be sent to these contacts.
- Using the SOS Button:
- In an emergency, press and hold the dedicated SOS button on the keypad for a few seconds.
- The phone will automatically dial the pre-set emergency numbers one by one until a connection is made.
- If enabled, an emergency SMS will also be sent.

Image: A finger pressing the prominent SOS button on the keypad of the Maxcom MM828, highlighting its accessibility for emergency use.

Image: A close-up of the Maxcom MM828 keypad with the SOS button circled, emphasizing its location and importance for emergency calls.
3.4 Managing Contacts
You can save frequently called numbers to your phone's contact list.
- Adding a New Contact:
- Go to "Contacts" or "Phonebook" from the main menu.
- Select "Add New Contact".
- Enter the name and phone number.
- Save the contact.
- Favorite Contacts: The MM828 allows saving up to 8 favorite contacts for quick dialing. These can often be assigned to speed dial keys.

Image: The Maxcom MM828 screen displaying a list of favorite contacts with associated photos, indicating the ability to quickly call frequently used numbers.
3.5 Additional Features
- Camera: The phone includes a basic camera for capturing photos. Access it from the main menu.
- FM Radio: Enjoy listening to FM radio stations. Connect headphones (3.5mm jack) to use as an antenna.
- Dual SIM: Use two different SIM cards simultaneously, allowing for separate numbers or network providers.

Image: An illustration showcasing the Maxcom MM828 alongside icons representing its key features: Camera, FM Radio, and Dual SIM capability.
4. Maintenance and Care
- Cleaning: Use a soft, dry cloth to clean the phone's surface. Avoid liquid cleaners or abrasive materials.
- Battery Care:
- Avoid extreme temperatures, which can reduce battery life.
- Do not leave the phone charging for excessively long periods after it's full.
- If the phone will not be used for an extended period, charge it to about 50% before storing.
- Storage: Store the phone in a cool, dry place away from direct sunlight and moisture.
- Avoid Drops: While durable, avoid dropping the phone to prevent damage to the screen or internal components.
5. Troubleshooting
If you encounter issues with your Maxcom MM828, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Phone does not power on. | Low battery; battery not installed correctly. | Charge the battery; ensure battery is properly seated. |
| Cannot make or receive calls. | No network signal; SIM card not inserted correctly; SIM card not activated. | Move to an area with better signal; reinsert SIM card; contact your network provider. |
| SOS button not working. | SOS numbers not set up; button not held long enough. | Verify SOS settings and contacts; press and hold the SOS button for at least 3 seconds. |
| Poor audio quality during calls. | Weak signal; speaker/microphone obstruction. | Move to an area with stronger signal; ensure speaker/microphone are not blocked. |
| Battery drains quickly. | Frequent use; old battery; background processes. | Reduce screen brightness; close unused applications; consider replacing battery if very old. |
If the problem persists after trying these solutions, please contact customer support.
6. Specifications
Below are the technical specifications for the Maxcom MM828 Mobile Flip Phone:
- Brand: Maxcom
- Model Name: MM828
- Color: Blue
- Product Type: Flip Phone
- Operating System: Symbian 9.3
- Screen Size: 2.4 Inches
- Resolution: 240 x 320
- Connectivity: 4G VoLTE
- Cellular Technology: 4G
- Wireless Carrier: Unlocked
- RAM Size: 32 MB
- Memory Storage Capacity: 1 GB
- CPU Model: Cortex
- Special Features: Flip Phone, SOS Button, Long Battery Life
- Battery Composition: Lithium-ion (1 included)
- Charging Port: USB-C
- Audio Jack: 3.5 mm Jack
7. Warranty and Support
Maxcom products are designed for reliability and performance. For specific warranty details, please refer to the warranty card included with your purchase or visit the official Maxcom website.
Customer Support
If you require further assistance, technical support, or have questions not covered in this manual, please contact Maxcom customer service. Contact information can typically be found on the product packaging or the official Maxcom website.
Online Resources: For the latest information, FAQs, and support, please visit the official Maxcom support page.





