1. Introduction
The Blackview Tab20WIFI is a 10.1-inch Android 15 tablet designed for versatile use, from entertainment to productivity. It features a vibrant HD+ IPS display, a powerful quad-core processor, and ample storage with expansion capabilities. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device.

The Blackview Tab20WIFI tablet offers a 10.1-inch display, WiFi 5 connectivity, Android 15, 12GB RAM + 64GB storage, a 6600mAh battery, and Widevine L1 support.
2. Setup
2.1 Package Contents
Before starting, ensure all items are present in the package:
- Blackview Tab20WIFI Tablet
- Type-C USB Cable
- 10W Power Adapter
- Screen Protector (pre-applied or included)
- Protective Case
- User Manual
2.2 Initial Charging
It is recommended to fully charge the tablet before first use. Connect the provided Type-C USB cable to the tablet's charging port and the 10W power adapter to a wall outlet. The charging indicator will show the battery status.
2.3 Power On/Off
- To Power On: Press and hold the Power Button located on the side of the tablet until the Blackview logo appears on the screen.
- To Power Off: Press and hold the Power Button until the power options menu appears. Select "Power Off" and confirm.
- To Restart: Press and hold the Power Button until the power options menu appears. Select "Restart" and confirm.
2.4 Initial Configuration
Upon first power-on, follow the on-screen prompts to set up your tablet:
- Select your preferred language.
- Connect to a Wi-Fi network.
- Sign in with your Google account or create a new one.
- Review and accept the terms and conditions.
- Set up screen lock (PIN, pattern, password, or Face Unlock).
2.5 Storage Expansion
The tablet supports up to 1TB TF (microSD) card expansion. To insert a TF card:
- Locate the Micro SD slot on the side of the tablet.
- Gently insert the TF card into the slot until it clicks into place.
- The tablet will detect the new storage. You may be prompted to format it for use as portable or internal storage.

The tablet features 12GB RAM (4GB physical + 8GB virtual) and 64GB internal storage, expandable up to 1TB with a TF card (not included).
3. Operating the Tablet
3.1 Display and Touch Interaction
The tablet features a 10.1-inch HD+ IPS display with an 800x1280 resolution and 149 PPI, offering clear visuals. It supports 10-point multi-touch and a 120Hz sampling rate for responsive interaction.
3.2 Navigation and Interface
Your tablet runs on Android 15. Navigate using gestures or on-screen buttons:
- Home Screen: Swipe left or right to access different home screens.
- App Drawer: Swipe up from the bottom of the screen to view all installed applications.
- Notifications & Quick Settings: Swipe down from the top of the screen to access notifications and quick settings toggles (Wi-Fi, Bluetooth, brightness, etc.).
3.3 Connectivity
The tablet supports 5G Wi-Fi and Bluetooth 5.0 for wireless connections.
- Wi-Fi: Go to Settings > Network & internet > Wi-Fi to connect to available networks.
- Bluetooth: Go to Settings > Connected devices > Bluetooth to pair with Bluetooth devices like headphones, keyboards, or mice.

Bluetooth 5.0 allows connection to various external devices such as keyboards, mice, styluses, USB drives, headsets, and speakers.
3.4 Cameras
The tablet is equipped with an 8MP rear camera and a 5MP front camera. Open the Camera app to capture photos and videos.
- Tap the shutter button to take a photo.
- Switch between front and rear cameras using the camera icon.
- Explore different modes like video, portrait, or panorama if available.

The tablet features an 8MP rear camera and a 5MP front camera for capturing moments.
3.5 Face Unlock
Set up Face Unlock for convenient and secure access to your tablet.
- Go to Settings > Security & privacy > Device unlock > Face unlock.
- Follow the on-screen instructions to register your face.
- Once set up, simply look at the front camera to unlock your device.
3.6 Apps and Features
- Installing Apps: Download and install applications from the Google Play Store.
- Split-Screen Function: To use two apps simultaneously, open one app, then swipe up from the bottom of the screen and hold to access recent apps. Drag one app to the top or side of the screen, then select another app for the remaining space.

The split-screen function allows you to boost productivity by using two applications simultaneously.
- Casting Screen: Share your tablet's screen to a compatible smart TV or display. Go to Settings > Connected devices > Connection preferences > Cast and select your desired device.

Utilize the casting screen feature to display your tablet's content on a larger screen.
- Widevine L1 Support: Enjoy high-quality streaming from platforms like Netflix, YouTube, HBO, and Prime Video due to Widevine L1 certification.

Widevine L1 support ensures high-quality streaming experiences for various media platforms.
- Doke AI: The tablet integrates Doke AI, powered by advanced AI models, to provide intelligent services such as smart assistance, content generation, and image processing.

Doke AI offers intelligent services through applications like Hi Doki, Soundle, VidGen, and ImageX.
4. Maintenance
4.1 Battery Care
The tablet is equipped with a 6600mAh Lithium Polymer battery. To maximize battery life:
- Avoid extreme temperatures.
- Do not let the battery drain completely regularly.
- Use the provided charger and cable for optimal charging.
- Close unused applications running in the background.
- Adjust screen brightness to a comfortable level.

The 6600mAh battery provides approximately 7 hours of web browsing, 6 hours of video playback, 6 hours of gaming, 22 hours of audio playback, and 6 days of standby time.
4.2 Cleaning
To clean your tablet:
- Use a soft, lint-free cloth.
- For stubborn smudges, slightly dampen the cloth with water or a screen cleaner designed for electronics.
- Avoid harsh chemicals, abrasive materials, or excessive moisture.
4.3 Software Updates
Regularly check for and install software updates to ensure optimal performance, security, and access to new features. Go to Settings > System > System update.
5. Troubleshooting
Here are solutions for common issues you might encounter:
| Issue | Possible Solution |
|---|---|
| Tablet does not power on | Ensure the battery is charged. Connect the charger and wait a few minutes before attempting to power on again. If unresponsive, press and hold the power button for 10-15 seconds to force a restart. |
| Wi-Fi connection issues | Check if Wi-Fi is enabled in Quick Settings or Settings. Restart your Wi-Fi router. Forget the network and reconnect. Ensure you are within range of the Wi-Fi signal. |
| Slow performance or apps crashing | Close unused background apps. Clear cache for problematic apps (Settings > Apps > [App Name] > Storage & cache > Clear cache). Restart the tablet. Ensure sufficient storage space is available. |
| Screen is unresponsive | Restart the tablet. Ensure the screen is clean and free of debris. If the issue persists, a factory reset might be necessary (back up data first). |
| Battery drains quickly | Reduce screen brightness. Disable Wi-Fi/Bluetooth when not in use. Close power-intensive apps. Check battery usage in Settings to identify draining apps. |
If these solutions do not resolve your issue, please refer to the Warranty & Support section for further assistance.
6. Specifications
Detailed technical specifications for the Blackview Tab20WIFI tablet:
| Feature | Detail |
|---|---|
| Model Name | Tab20WIFI |
| Item Model Number | T310 |
| Operating System | Android 15 |
| Screen Size | 10.16 Inches |
| Max Screen Resolution | 800x1280 Pixels |
| RAM | 4GB (expandable with 8GB virtual RAM) |
| Flash Memory Size (ROM) | 64 GB |
| Expandable Storage | Up to 1TB via TF card |
| Wireless Type | 802.11ax (5G WiFi), Bluetooth 5.0 |
| Battery Type | 6600mAh Lithium Polymer |
| Average Battery Life | 8 hours (average use) |
| Item Weight | 2.57 pounds |
| Product Dimensions | 12 x 6 x 0.5 inches |
| Color | Gray |

Physical overview of the Blackview Tab20WIFI, detailing component locations.
7. Warranty & Support
7.1 Blackview Two-Year Warranty Support
Blackview products undergo strict quality control from design to production. The Blackview Tab20WIFI tablet comes with a 24-month free repair warranty and lifetime technician support.

Blackview provides a two-year warranty and lifetime technical support for its products.
7.2 Contact Support
For technical assistance, warranty claims, or any product-related inquiries, please contact Blackview customer support through their official channels. Refer to the packaging or the official Blackview website for contact information.