1. Introduction
This manual provides essential information for the proper use, setup, and maintenance of your DOOGEE T40 Pro Tablet. Please read this guide thoroughly before operating your device to ensure optimal performance and longevity.
The DOOGEE T40 Pro is a high-performance 12-inch tablet designed for both productivity and entertainment. It features a powerful Helio G99 processor, ample memory with 20GB RAM (8GB physical + 12GB virtual) and 512GB internal storage, expandable up to 2TB. The tablet runs on Android 14, offering a smooth and secure user experience. Its 10800mAh battery ensures extended usage, while the 2.4K IPS display provides vibrant visuals. The tablet also supports dual 4G LTE and dual-band Wi-Fi connectivity.

Image 1.1: The DOOGEE T40 Pro Tablet shown with its accompanying accessories, including a detachable keyboard, wireless mouse, and a capacitive stylus, highlighting its versatility for various tasks.
2. Setup Guide
2.1 Unboxing and Initial Inspection
Carefully remove all components from the packaging. Verify that the following items are included:
- DOOGEE T40 Pro Tablet
- Detachable Keyboard
- Wireless Mouse
- Capacitive Stylus
- Power Adapter (18W fast charging)
- USB Cable
- Protective Films (2x)
Inspect the tablet and accessories for any visible damage. If any items are missing or damaged, contact customer support immediately.
2.2 Charging the Tablet
Before first use, fully charge the tablet. Connect the provided USB cable to the tablet's USB-C port and the power adapter, then plug the adapter into a wall outlet. The 10800mAh battery supports 18W fast charging.
Image 2.1: An illustration emphasizing the large 10800 mAh battery capacity of the DOOGEE T40 Pro Tablet, indicating its long-lasting power for extended use.
2.3 Powering On and Initial Configuration
Press and hold the Power button until the DOOGEE logo appears. Follow the on-screen prompts to complete the initial setup, including language selection, Wi-Fi connection, Google account login, and security settings.
2.4 SIM Card Installation
The DOOGEE T40 Pro supports dual 4G LTE. Locate the SIM card tray on the side of the tablet. Use the provided SIM ejector tool to open the tray. Insert your Nano-SIM card(s) and/or a microSD card (for expandable storage up to 2TB) into the designated slots, ensuring correct orientation. Gently push the tray back into the tablet until it clicks into place.
2.5 Connecting Accessories
Keyboard: The detachable keyboard connects via Bluetooth. Turn on the keyboard and put it into pairing mode. On your tablet, go to Settings > Connected devices > Bluetooth, turn on Bluetooth, and select the keyboard from the list of available devices to pair.
Mouse: The wireless mouse also connects via Bluetooth. Follow the same pairing procedure as the keyboard.
Stylus: The capacitive stylus does not require pairing and can be used directly on the screen for navigation and input.
3. Operating Your Tablet
3.1 Basic Navigation
The DOOGEE T40 Pro operates on Android 14, utilizing touch gestures for navigation:
- Tap: Select an item or open an app.
- Swipe: Scroll through pages or lists.
- Pinch-to-zoom: Zoom in or out on images and web pages.
- Long press: Access contextual menus or move icons.
3.2 Display Features
The 12-inch 2.4K IPS Ultra Clear Display offers an immersive viewing experience. You can optimize your viewing by using the tablet in horizontal, vertical, or split-screen mode. Split-screen allows you to run two applications simultaneously for enhanced productivity.
Image 3.1: Visual representation of the DOOGEE T40 Pro Tablet's 12-inch 2.4K IPS Ultra-clear Display, highlighting its full-view display, 2.4K resolution, 16.7 million colors, 87.2% screen-to-body ratio, 16:10 aspect ratio, and 1500:1 contrast ratio.
3.3 Performance and Storage
Powered by the Helio G99 Octa-core processor, the T40 Pro delivers excellent multitasking capabilities and energy efficiency. With 20GB RAM (8GB base + 12GB extended) and 512GB ROM, you have ample space for applications, high-resolution media, and files. The storage can be expanded further with a microSD card up to 2TB.
Image 3.2: An illustration detailing the DOOGEE T40 Pro Tablet's memory and storage, showing 20GB RAM (8GB base + 12GB extended), 512GB base storage, and up to 2TB expandable memory.
Image 3.3: A diagram illustrating the Helio G99 Octa-core Processor, highlighting its key attributes: Helio G99, 2.2GHz clock speed, 6nm process, and a benchmark score of 373000+.
3.4 Camera and Audio
The tablet is equipped with a 16MP main camera for capturing photos and videos. For audio, it features four smart speakers that provide an immersive sound experience, enhancing multimedia consumption.
3.5 Connectivity
The DOOGEE T40 Pro supports dual 4G LTE for cellular data and calls, and dual-band Wi-Fi (2.4GHz/5GHz) for stable internet connections. Bluetooth allows for connecting wireless peripherals like the included keyboard and mouse.
3.6 Android 14 Features
Experience the latest Android 14 operating system, which offers enhanced security, privacy controls, and customization options. Enjoy features like real-time subtitles, split-screen functionality, and improved multi-device interconnection.
Image 3.4: A visual representation of the DOOGEE T40 Pro Tablet's interface running Android 14, showcasing features such as real-time subtitles, split-screen mode, productivity tools, UI personalization, and multi-device interconnection.
4. Maintenance
4.1 Cleaning
To clean the tablet screen, use a soft, lint-free cloth specifically designed for electronics. For the tablet body, a slightly damp cloth can be used. Avoid using harsh chemicals, abrasive cleaners, or aerosol sprays directly on the device.
4.2 Battery Care
To maximize battery life, avoid exposing the tablet to extreme temperatures. It is recommended to keep the battery charge between 20% and 80% for daily use. Fully discharging the battery frequently can reduce its overall lifespan. Use only the provided charger or a certified compatible charger.
4.3 Software Updates
Regularly check for and install software updates to ensure your tablet has the latest features, security patches, and performance improvements. Go to Settings > System > System update to check for available updates.
4.4 Storage Management
Periodically review your stored files and applications. Delete unnecessary files and uninstall unused apps to free up internal storage. Utilize the expandable storage option with a microSD card for large media files to keep the internal memory optimized.
5. Troubleshooting
This section addresses common issues you might encounter with your DOOGEE T40 Pro Tablet.
5.1 Tablet Not Powering On
- Ensure the tablet is sufficiently charged. Connect it to the charger and wait a few minutes before attempting to power on.
- Press and hold the Power button for at least 10-15 seconds to perform a forced restart.
5.2 Wi-Fi Connectivity Issues
- Ensure Wi-Fi is enabled in Settings > Network & internet > Wi-Fi.
- Restart your Wi-Fi router.
- Forget the network and reconnect by re-entering the password.
- Check if other devices can connect to the same Wi-Fi network.
5.3 Apps Crashing or Freezing
- Close the app and reopen it.
- Clear the app's cache and data in Settings > Apps > [App Name] > Storage & cache.
- Ensure the app is updated to its latest version from the Google Play Store.
- Restart the tablet.
5.4 Slow Performance
- Close unnecessary background applications.
- Free up storage space by deleting old files or uninstalling unused apps.
- Restart the tablet regularly.
- Check for system updates.
If you encounter issues not covered here or if the problem persists, please refer to the official DOOGEE support website or contact their customer service.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | DOOGEE |
| Model Name | DOOGEE T40 Pro |
| Model Number | T40PRO-V |
| Operating System | Android 14 |
| Processor | Helio G99 Octa-core |
| RAM | 20GB (8GB physical + 12GB virtual) |
| Internal Storage | 512GB |
| Expandable Storage | Up to 2TB (microSD) |
| Display Size | 12 Inches |
| Display Type | 2.4K IPS Ultra Clear Display |
| Battery Capacity | 10800 mAh |
| Charging | 18W Fast Charging |
| Main Camera | 16 MP |
| Connectivity | Dual 4G LTE, Dual-band Wi-Fi (802.11ac), Bluetooth |
| Dimensions (L x W x H) | 30.48 x 17.27 x 0.76 cm (12 x 6.8 x 0.3 inches) |
| Weight | 568 Grams (1.25 lbs) |
| Color | DOOGEE T40 Pro Grey |
Image 6.1: A visual representation highlighting the slim design and light weight of the DOOGEE T40 Pro Tablet, showing its thickness at 7.6mm and weight at 568g.
7. Warranty and Support
Warranty information for the DOOGEE T40 Pro Tablet is not explicitly provided in the product details. For specific warranty terms, conditions, and duration, please refer to the official DOOGEE website or contact their customer support directly. Keep your purchase receipt as proof of purchase.
For technical support, troubleshooting assistance, or service inquiries, please visit the official DOOGEE support portal or contact their customer service team through the contact information provided on their website.





