1. Introduction
This manual provides essential instructions for setting up, operating, maintaining, and troubleshooting your DEZLTID M258-EEA 10.3-inch Android 15 Tablet. Please read this manual thoroughly before using your device to ensure proper function and longevity.

Image 1.1: DEZLTID M258-EEA Tablet and its accessories.
2. Package Contents
Verify that all items are present in your product package:
- DEZLTID M258-EEA Tablet
- Keyboard
- Mouse
- Stylus
- Protective Case
- Screen Protector
- Card Pin (SIM ejector tool)
- Type-C Cable
- Fast Charger
- OTG Cable
- User Manual (this document)

Image 2.1: Detailed view of the DEZLTID M258-EEA Tablet and its complete accessory bundle.
3. Device Layout
Familiarize yourself with the physical components of your tablet:
- Power Button: Located on the side, used to power on/off or wake/sleep the device.
- Volume Buttons: Adjust audio levels.
- USB-C Port: For charging and data transfer.
- 3.5mm Headphone Jack: For wired audio accessories.
- MicroSD Card Slot: Expand storage up to 1TB.
- Front Camera: 8MP camera for video calls and selfies.
- Rear Camera: 13MP camera with flash for photos and videos.
- Speakers: Dual speakers for audio output.

Image 3.1: The tablet's slim profile and accessory integration.
4. Setup
4.1 Initial Power On and Basic Configuration
- Charge the Tablet: Connect the provided Type-C cable and fast charger to the tablet and a power outlet. Allow the tablet to charge fully before first use.
- Power On: Press and hold the Power Button until the DEZLTID logo appears.
- Language and Region: Follow the on-screen prompts to select your preferred language and region.
- Connect to Wi-Fi: Select your Wi-Fi network from the list and enter the password. The tablet supports 5G and 2.4G dual-band Wi-Fi.
- Google Account Setup: Sign in with your Google account or create a new one. This is necessary to download apps from the Google Play Store.
- Screen Protector: Carefully apply the included screen protector to the tablet display, ensuring no dust or bubbles.
4.2 Inserting a MicroSD Card
- Locate the MicroSD card slot on the side of the tablet.
- Use the provided card pin to gently press into the small hole next to the slot to eject the tray.
- Place your MicroSD card (up to 1TB, sold separately) into the tray with the gold contacts facing down.
- Carefully reinsert the tray into the tablet until it clicks into place.
4.3 Connecting Accessories
- Keyboard: The keyboard connects via Bluetooth. Enable Bluetooth on your tablet, put the keyboard in pairing mode, and select it from the available devices.
- Mouse: The included mouse is a wireless USB mouse. Connect the USB dongle to the tablet using the provided OTG cable and the USB-C port. Note: When the USB-C port is used for the mouse dongle, it cannot be used for charging simultaneously.
- Stylus: The stylus is a passive input device and does not require pairing. Simply use it directly on the screen.

Image 4.1: Connectivity standards and GMS certification for app access.
5. Operating Instructions
5.1 Basic Navigation and Android 15 Features
- Home Screen: Swipe left/right to navigate between screens.
- Notifications: Swipe down from the top of the screen to access notifications and quick settings.
- App Drawer: Swipe up from the bottom of the screen to view all installed applications.
- Split-Screen Mode: For multitasking, use the split-screen feature to run two apps simultaneously. Access this via the recent apps menu.
- Free Window Mode: Android 15 allows apps to run in resizable floating windows.
- Dynamic Refresh Rate: The tablet automatically adjusts the screen refresh rate for optimal performance and battery life.

Image 5.1: Key features of the Android 15 operating system.
5.2 Display Settings
The 10.3-inch IPS display offers a 2000x1200 resolution with 330-nit brightness and 178° wide-angle viewing. You can customize display settings:
- Brightness: Adjust screen brightness manually or enable adaptive brightness.
- Font Scaling: Utilize the 200% stepless font scaling for enhanced readability, especially useful for users with visual impairments.
- Night Light/Dark Theme: Reduce eye strain by enabling Night Light for warmer colors or Dark Theme for a darker interface.

Image 5.2: The tablet's 2K IPS display and Widevine L1 certification for high-definition streaming.
5.3 Camera Usage
The tablet features an 8MP front camera and a 13MP rear camera with flash.
- Taking Photos/Videos: Open the Camera app and select your desired mode (Photo, Video, Portrait, etc.).
- Google Lens Integration: Use Google Lens to identify objects, translate text, or solve queries directly from the camera feed.
- Night Shot: Utilize the Night Shot feature for improved low-light photography.

Image 5.3: Camera specifications and capabilities.
5.4 Performance and Storage
The tablet is powered by a T606 Octa-Core 1.6GHz processor with 36GB RAM (12GB physical + 24GB extended) and 256GB internal storage, expandable up to 1TB via MicroSD card.
- App Performance: The Octa-Core processor ensures smooth operation for applications and multitasking.
- Storage Management: Regularly check your storage usage in Settings > Storage. Move large files to the MicroSD card or cloud storage to free up internal space.
- LPDDR4X Memory: This technology optimizes power consumption while maintaining high performance.

Image 5.4: The T606 Octa-Core processor for smooth performance.

Image 5.5: Storage and memory capabilities.
5.5 Battery Management
The 8000mAh battery provides extended usage times. To maximize battery life:
- Reduce screen brightness.
- Disable Wi-Fi and Bluetooth when not in use.
- Close unused applications running in the background.
- Use power-saving modes available in Settings.

Image 5.6: Battery capacity and typical usage duration.
5.6 Accessibility and Learning Features
- Intelligent Voice Reading: Have text content read aloud for hands-free consumption.
- Focus Mode: Minimize distractions by pausing selected apps.
- App Time Locks & Content Filtering: Manage app usage and restrict access to certain content, ideal for educational environments.
- Emergency SOS: A feature for quick access to emergency services.
- GPS: Accurate positioning for navigation and location-based services.

Image 5.7: Accessibility features for enhanced user experience.

Image 5.8: Learning aid functionalities.
6. Maintenance
6.1 Cleaning the Tablet
- Use a soft, lint-free cloth to clean the screen and body of the tablet.
- For stubborn smudges, slightly dampen the cloth with water or a screen-cleaning solution. Avoid harsh chemicals.
- Do not spray liquids directly onto the tablet.
6.2 Battery Care
- Avoid exposing the tablet to extreme temperatures (hot or cold).
- Do not allow the battery to fully discharge frequently. Charge it before it drops below 20%.
- Use only the provided charger and cable to prevent damage.
6.3 Software Updates
Periodically check for system updates in Settings > System > System update. Keeping your software up-to-date ensures optimal performance, security, and access to new features.
6.4 Storage Optimization
To maintain performance, regularly manage your tablet's storage:
- Delete unnecessary files and apps.
- Clear cache data for apps in Settings > Apps.
- Utilize cloud storage services for large media files.
7. Troubleshooting
If you encounter issues with your tablet, refer to the following common solutions:
- Tablet not powering on: Ensure the tablet is charged. Connect it to the charger for at least 30 minutes, then try powering it on again.
- Apps crashing or freezing: Close the problematic app and reopen it. If the issue persists, clear the app's cache (Settings > Apps > [App Name] > Storage > Clear cache). As a last resort, uninstall and reinstall the app.
- Wi-Fi connection issues: Restart your tablet and your Wi-Fi router. Forget the network in tablet settings and reconnect.
- Slow performance: Close background apps, clear cache, and ensure sufficient storage space. Consider a factory reset if performance issues persist after other troubleshooting steps.
- Accessories not connecting: For Bluetooth devices, ensure they are in pairing mode and Bluetooth is enabled on the tablet. For USB accessories, ensure the OTG cable is correctly connected.
- Factory Reset: If severe software issues occur, you may need to perform a factory reset (Settings > System > Reset options > Erase all data). Warning: This will erase all data on your tablet. Back up important files before proceeding.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | M258-EEA |
| Operating System | Android 15 |
| Display Size | 10.3 Inches |
| Display Resolution | 2000x1200 IPS |
| Processor | 1.6 GHz Octa-Core (T606) |
| Graphics Coprocessor | Mali-G52 |
| RAM | 36GB (12GB + 24GB Extended) |
| Internal Storage | 256 GB |
| Expandable Storage | Up to 1TB (MicroSD, sold separately) |
| Wireless Standard | 802.11a/b/g/n/ac (5G/2.4G Dual WiFi) |
| Bluetooth | Bluetooth 5.0 |
| Front Camera | 8 MP |
| Rear Camera | 13 MP |
| Battery Capacity | 8000mAh |
| Average Battery Life | 48 Hours (usage dependent) |
| Dimensions | 32.6 x 19.2 x 4 cm |
| Weight | 421.84 g (0.97 LB) |
| Color | Gray |
| Certifications | FCC/CE/GMS, Widevine L1 |
9. Warranty and Support
Your DEZLTID M258-EEA Tablet comes with a 12-month warranty from the date of purchase. This warranty covers manufacturing defects and ensures product reliability.
Additionally, DEZLTID provides lifetime technical support for your product. If you encounter any issues or have questions not covered in this manual, please contact DEZLTID customer service through the platform where you purchased the device or refer to the contact information provided in your product packaging.

Image 9.1: DEZLTID's commitment to customer support and warranty.