Introduction
This manual provides essential information for the safe and efficient use of your Maxcom MM835 4G Dual SIM mobile phone. Please read it carefully before using the device and keep it for future reference.
Figure 1: Maxcom MM835 4G Dual SIM mobile phone, open, showing the internal screen and keypad.
Setup
1. Unboxing and Initial Inspection
Carefully remove all items from the packaging. Verify that all components listed in the 'What's in the Box' section are present and undamaged.
Video 1: Overview of the Maxcom MM835 4G Dual SIM mobile phone, showcasing its key features and design.
2. Installing the SIM Card and Battery
The Maxcom MM835 supports Dual Nano SIM cards. To install:
- Carefully remove the back cover of the phone.
- Insert the Nano SIM card(s) into the designated slot(s) with the gold contacts facing down. Ensure they are correctly seated.
- Insert the battery into its compartment, aligning the contacts.
- Replace the back cover until it clicks securely into place.
Note: SIM card insertion can be challenging. Use the provided SIM tray ejector if necessary.
3. Charging the Device
Before first use, fully charge the phone. Connect the USB Type-C cable to the phone's charging port and the other end to the power adapter. Plug the adapter into a wall outlet. The charging indicator will show the charging status.
Figure 2: Bottom view of the Maxcom MM835 4G Dual SIM mobile phone, showing the USB-C port and microphone.
4. Powering On and Initial Configuration
Press and hold the Power button until the screen lights up. Follow the on-screen prompts to select your preferred language and set the date and time.
Operating Instructions
1. Basic Call Functions
- Making a Call: Open the phone, enter the phone number using the large keypad, and press the green call button.
- Answering a Call: Open the phone to answer an incoming call. The external display shows caller ID.
- Ending a Call: Press the red end call button or close the phone.
Figure 3: Front view of the Maxcom MM835 4G Dual SIM mobile phone, closed, showing the external display with time and date.
2. Sending Text Messages
Navigate to the 'Messages' menu. Select 'New Message', enter the recipient's number or select from contacts, type your message using the keypad, and send.
3. SOS Emergency Button
The MM835 features a dedicated SOS button for emergencies. When pressed and held, it will automatically dial pre-set emergency contacts and send an emergency SMS message.
Figure 4: Close-up of the Maxcom MM835 keypad, showing large buttons, an SOS emergency function, and an ICE button.
4. ICE (In Case of Emergency) Function
The ICE function allows you to store critical medical information and emergency contacts that can be accessed by first responders without unlocking the phone. Configure this in the phone settings.
5. Camera and FM Radio
- Camera: Access the camera from the main menu to take photos.
- FM Radio: Plug in headphones (not included) to use as an antenna, then access the FM Radio application from the menu.
Figure 5: Maxcom MM835 4G Dual SIM mobile phone, highlighting features like camera, FM radio, and dual SIM capability.
6. Hearing Aid Compatibility (HAC)
The Maxcom MM835 is designed to be compatible with hearing aids, providing clear call quality for users with hearing impairments.
Figure 6: The Maxcom MM835 is designed for clear calls, especially for seniors and those with hearing aids.
Maintenance
1. Cleaning Your Device
Use a soft, dry cloth to clean the phone's exterior. Avoid using harsh chemicals or abrasive materials, as they may damage the surface. Keep the charging port free of dust and debris.
2. Battery Care
To prolong battery life, avoid exposing the phone to extreme temperatures. Do not leave the phone fully discharged for extended periods. Use only the original charger or a certified compatible charger.
3. Software Updates
Periodically check for software updates in the phone's settings menu. Updates can improve performance, add new features, and enhance security.
Troubleshooting
If you encounter issues with your Maxcom MM835, refer to the following common solutions:
- Phone not turning on: Ensure the battery is charged. Connect the charger and try again. If the issue persists, remove and reinsert the battery.
- Cannot make or receive calls: Check if the SIM card is correctly inserted and activated. Verify that you have network coverage. If the phone frequently switches to 'Emergency Call only' mode, this may indicate a network issue or a faulty SIM card. Try testing with a different SIM card or contacting your network provider.
- Poor call quality: Ensure you are in an area with good network signal. If using a headset, ensure it is properly connected.
- Phone not charging: Check the USB cable and power adapter for damage. Ensure the charging port is clean. Try using a different power outlet.
- Keypad unresponsive: Restart the phone. If the issue continues, contact customer support.
Video 2: Detailed close-up view of the Maxcom MM835 4G Dual SIM mobile phone, highlighting its physical features and build quality.
Specifications
| Brand | Maxcom |
| Model Name | MM835 |
| Operating System | Maxcom OS |
| CPU Model | Snapdragon |
| Internal Storage Capacity | 32 GB (Max Flash Memory Supported) |
| Main Screen Size | 3.5 Inches |
| External Screen Size | 2.4 Inches (Estimated from max display resolution) |
| Resolution | 480 x 800 (Main), 320 x 240 (External) |
| Cellular Technology | 4G |
| Connectivity Technology | 4G, GSM |
| SIM Card Slots | Dual SIM |
| SIM Card Size | Nano |
| USB Port | USB Type C |
| Headphone Jack | 3.5 mm |
| Battery Capacity | 1400 mAh |
| Talk Time | 1400 Minutes |
| Dimensions | 8 x 5 x 11 Centimeters |
| Form Factor | Flip Phone |
| Water Resistance Level | Not Waterproof |
| Model Year | 2025 |
| Country of Origin | Portugal |
| What's in the Box | Power Adapter, USB Cable, SIM Tray Ejector |
Warranty Information
Your Maxcom MM835 mobile phone is covered by a standard manufacturer's warranty. Please refer to the warranty card included in your product packaging for specific terms, conditions, and duration. Keep your proof of purchase for any warranty claims.
Support
For further assistance, technical support, or service inquiries, please visit the official Maxcom website or contact their customer service department. Contact details can typically be found on the manufacturer's website or in the product packaging.
