Introduction
This manual provides comprehensive instructions for the Bigme B751C S eReader, a portable 7-inch color e-ink electronic book. It covers setup, operation, maintenance, and troubleshooting to help you maximize your device's potential. The Bigme B751C S features a 300 PPI (B&W) / 150 PPI (Color) display, runs on Android 14 OS, and includes 4GB RAM and 64GB storage. It is designed for comfortable reading, efficient note-taking with its capacitive stylus, and enhanced productivity with its versatile features.
1. Setup
1.1. Unboxing and Package Contents
Carefully unpack your Bigme B751C S eReader. Verify that all items are present:
- Bigme B751C S Device
- Capacitive Stylus (Type-C charging)
- Charge Cable (USB Type-C)
- User Guide (Printed manual)
- TF Card Removal Tool
1.2. Initial Charge
Before first use, fully charge the eReader. Connect the provided USB Type-C charge cable to the device's Type-C port and a compatible USB power adapter (not included). The stylus also charges via Type-C.
1.3. Powering On/Off
- To Power On: Press and hold the power button (location typically on the side or top edge) for a few seconds until the screen activates.
- To Power Off: Press and hold the power button, then select "Power Off" from the on-screen options.
- To Sleep/Wake: Briefly press the power button to put the device to sleep or wake it up.
1.4. Connecting to Wi-Fi
- From the home screen, tap on the "Settings" icon.
- Navigate to "Network & Internet" or "Wi-Fi".
- Toggle Wi-Fi ON.
- Select your desired Wi-Fi network from the list.
- Enter the password if prompted and tap "Connect". The device supports 2.4G and 5G Wi-Fi networks.
1.5. Google Play Store Setup
The Bigme B751C S comes with Google Play built-in. To access and download applications:
- Ensure you are connected to Wi-Fi.
- Locate and tap the "Play Store" icon on your home screen or app drawer.
- Sign in with your existing Google account or create a new one.
- Once signed in, you can browse and install compatible Android applications.
1.6. Expanding Storage with TF Card
The device supports TF (microSD) card expansion up to 1TB.
- Locate the TF card slot on the side of the device.
- Use the provided TF card removal tool to gently open the slot.
- Insert the TF card into the slot with the contacts facing down until it clicks into place.
- Close the slot cover. The device should recognize the new storage.
2. Operation
2.1. Display and Reading Experience
The 7-inch HD color e-paper screen offers a comfortable reading experience, similar to paper, with reduced eye strain due to its flicker-free and blue light-free design.
- Resolution: 300 PPI for black & white content, 150 PPI for color content.
- Front Light: Features a 36-level cold/warm front light for adjustable illumination in various environments.
2.2. Navigation and Controls
The device supports both touch interaction and physical shortcut keys for enhanced efficiency.
- Touch Screen: Navigate menus, open apps, and interact with content directly on the screen.
- Physical Keys: Customizable physical buttons provide one-tap access to functions like scanning or document management, reducing the need for frequent screen taps.
2.3. Writing and Note-Taking
Utilize the capacitive stylus for a natural writing experience that mimics ink on paper.
- Stylus Input: Write, draw, and annotate documents with precise strokes.
- Applications: Use pre-installed note-taking apps or compatible third-party applications for creative work and documentation.
2.4. App Ecosystem and Productivity
Running on Android 14 OS, the eReader offers access to a wide range of applications through the Google Play Store.
- Compatibility: Supports mainstream reading apps like Kindle, office applications, and social media platforms.
- External Devices: Connect external keyboards for efficient text input, enhancing productivity for tasks requiring extensive typing.
2.5. Media Viewing
The Super SSS refresh technology allows for smoother display of dynamic content.
- Video Playback: Supports video playback at up to 30FPS with minimal ghosting, suitable for casual viewing.
- Comics: Enjoy fluent display of digital comics.
2.6. Bigme OS 5.0 Features
The optimized Bigme OS 5.0 enhances the overall user experience.
- Performance: Significantly faster app launches and switching speeds.
- Responsiveness: Responsive operations for a smoother daily experience.
2.7. Connectivity
- Wi-Fi: Dual-band 2.4G/5G Wi-Fi for stable internet connection.
- Bluetooth: Bluetooth 5.0 for connecting wireless accessories like headphones or external keyboards.
3. Maintenance
3.1. Cleaning the Device
- Use a soft, lint-free cloth to gently wipe the screen and body of the eReader.
- For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaning solution. Avoid harsh chemicals.
- Do not spray cleaning solutions directly onto the screen.
3.2. Battery Care
The device is equipped with a 3050mAh battery designed for extended use with the low-power e-ink screen.
- Avoid completely draining the battery regularly.
- Store the device in a cool, dry place when not in use for extended periods.
- Use only the provided charge cable or a certified Type-C cable for charging.
3.3. Software Updates
Periodically check for system updates to ensure optimal performance and access to new features.
- Go to "Settings".
- Navigate to "System" or "About device".
- Select "System update" to check for and install available updates.
3.4. Storage Management
Regularly manage your device's 64GB internal storage and any inserted TF card to maintain performance.
- Delete unnecessary files and applications.
- Transfer large files to your TF card or cloud storage.
- Periodically clear app caches from "Settings > Apps".
4. Troubleshooting
4.1. Device Not Turning On
- Ensure the battery is sufficiently charged. Connect the device to a power source for at least 30 minutes.
- Perform a forced restart by holding the power button for 10-15 seconds.
4.2. Wi-Fi Connection Issues
- Verify that Wi-Fi is enabled in settings.
- Check if other devices can connect to the same Wi-Fi network.
- Restart your Wi-Fi router and the eReader.
- Forget the network in settings and reconnect.
4.3. Apps Crashing or Freezing
- Close and reopen the problematic app.
- Clear the app's cache and data from "Settings > Apps > [App Name] > Storage".
- Ensure the app is updated to its latest version.
- If the issue persists, uninstall and reinstall the app.
4.4. Screen Ghosting
E-ink displays can sometimes exhibit minor ghosting (faint remnants of previous images). This is normal for the technology.
- The device's Super SSS refresh technology minimizes ghosting, especially for dynamic content.
- A full screen refresh (often triggered automatically or manually in settings) can clear any persistent ghosting.
4.5. Stylus Not Responding
- Ensure the stylus is charged. Connect it to a Type-C charger.
- Check if the stylus tip is clean and undamaged.
- Restart the eReader.
5. Specifications
The following table details the technical specifications of the Bigme B751C S eReader:
| Feature | Specification |
|---|---|
| Model | B751C S |
| Screen | 7" Color E-ink Screen |
| Panel Color | White |
| Resolution | B&W: 1264x1680; Color: 632x840 |
| PPI | B&W: 300 PPI; Color: 150 PPI |
| Device Dimensions | 155.7 x 136.2 x 7 mm |
| CPU | Octa core BX4A53_2.20GHz |
| RAM/ROM | 4GB RAM / 64GB ROM |
| Storage Expansion | OTG/TF Card Slot (up to 1TB) |
| SIM Card Support | No |
| Call/Message Function | No |
| GPS | No |
| Camera | No |
| Reading Light | 36 Level Cold/Warm Front Light |
| Touch Button | Yes |
| Wi-Fi/Bluetooth | 2.4G/5G Wi-Fi; Bluetooth 5.0 |
| Stylus | Capacitive stylus (Type-C charging) |
| Weight | About 220g |
| Battery Capacity | 3050mAh |
| Mic & Speaker | Yes |
| Gravity Sensor | Yes |
| Refresh Rate | Up to 30FPS |
| Operating System | Android 14 |
| Bigme OS Version | Bigme OS 5.0 |
| AI LLMs | Free |
| Speech to Text | Free |
| Screen Material | E-Ink |
| Is Touch Screen | Yes |
| Supports Recording Function | Yes |
| Supported Comic Formats | Yes |
| Supported Text Formats | TXT (and others via Android apps) |
6. Warranty and Support
6.1. Product Warranty
The Bigme B751C S eReader is covered by a manufacturer's warranty. Please refer to the included "User Guide" or contact the point of purchase for specific warranty terms and conditions. Keep your proof of purchase for warranty claims.
6.2. Technical Support
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact the Bigme customer support or the retailer from whom you purchased the device. Contact information can typically be found in the included documentation or on the manufacturer's official website.
7. User Tips
- Optimize Reading Comfort: Experiment with the 36-level cold/warm front light to find the most comfortable setting for your eyes in different lighting conditions.
- Maximize Battery Life: While the e-ink screen is low-power, closing unused applications and reducing screen brightness when not needed can further extend battery life.
- Customize Physical Keys: Utilize the customizable physical shortcut keys to quickly access your most-used functions, streamlining your workflow.
- Explore Android Apps: Leverage the Android 14 OS and Google Play Store to install a variety of reading, productivity, and entertainment apps that enhance your eReader's functionality.
- Regularly Back Up Data: If you store important notes or documents on your device, regularly back them up to the expandable TF card or a cloud service to prevent data loss.
