1. Introduction
Thank you for choosing the Acer One T9-422L Tablet. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device. Please read this manual thoroughly to ensure proper use and to maximize the performance and longevity of your tablet.
The Acer One T9-422L is an 8.7-inch tablet featuring an Octa-Core MediaTek processor, 4GB RAM, 64GB internal storage (expandable up to 1TB), 4G LTE with VoLTE support, and runs on Android 13. It is designed for versatile use, from entertainment to productivity.
2. Package Contents
Please check the package for the following items:
- Acer One T9-422L Tablet
- Power Adapter
- USB Cable (Type-C)
- User Manual (this document)
- Earphone
- Warranty Card
3. Product Overview
Familiarize yourself with the physical features and key components of your Acer One T9-422L Tablet.

Figure 3.1: Front view of the Acer One T9-422L Tablet, showcasing its 8.7-inch display.

Figure 3.2: Side view of the Acer One T9-422L Tablet, highlighting its slim profile and button placement.

Figure 3.3: Back view of the Acer One T9-422L Tablet, showing the rear camera and Acer branding.

Figure 3.4: Overview of key features including Android 13, 4GB RAM, 64GB internal memory, up to 1TB expandable storage, 4G VoLTE SIM support, MediaTek Octa-core MTK8768 processor, 8.7-inch IPS display, 5100 mAh battery, USB Type-C, Wi-Fi 5, 8MP rear camera, 5MP front camera, and premium silver tone design.
4. Setup
4.1. Charging the Tablet
Before first use, fully charge your tablet. Connect the provided USB Type-C cable to the tablet's charging port and the power adapter to a wall outlet. The battery indicator on the screen will show charging status.
4.2. Inserting a SIM Card (Optional)
The Acer One T9-422L supports 4G LTE with VoLTE. To use cellular data and calling features:
- Locate the SIM card tray on the side of the tablet.
- Use the provided SIM ejector tool to open the tray.
- Place your Nano-SIM card(s) into the tray with the gold contacts facing down.
- Carefully reinsert the tray into the tablet.
4.3. Powering On/Off
- To Power On: Press and hold the Power button until the Acer logo appears.
- To Power Off: Press and hold the Power button until the power options appear, then select "Power off."
- To Restart: Press and hold the Power button until the power options appear, then select "Restart."
4.4. Initial Setup
Upon first power-on, the tablet will guide you through the Android 13 setup process. This includes selecting your language, connecting to a Wi-Fi network, signing in with your Google account, and setting up security features.
5. Operating Instructions
5.1. Basic Navigation
The tablet features an 8.7-inch multi-touch IPS display. Use standard Android gestures:
- Tap: Select an item or open an app.
- Swipe: Scroll through screens or lists.
- Pinch-to-zoom: Zoom in or out on images and web pages.
- Long press: Access contextual menus or move icons.
5.2. Connecting to Wi-Fi
- Go to Settings > Network & internet > Internet.
- Turn on Wi-Fi.
- Select your desired Wi-Fi network from the list and enter the password if prompted.

Figure 5.1: The tablet supports 4G VoLTE SIM for cellular connectivity and Wi-Fi 5 for wireless internet access.
5.3. Using 4G LTE/VoLTE
If a SIM card is inserted and activated, your tablet will automatically connect to the 4G LTE network. VoLTE (Voice over LTE) allows for high-quality voice calls over the 4G network. Ensure VoLTE is enabled in your network settings if available and supported by your carrier.
5.4. Camera Operation
The tablet is equipped with a 5MP front camera and an 8MP rear camera with auto-focus and flash light.
- Open the Camera app.
- Tap the shutter button to take a photo.
- Switch between front and rear cameras using the camera switch icon.
- Explore different modes like video, portrait, or panorama if available.

Figure 5.2: The tablet features a 5MP front camera and an 8MP rear camera with auto-focus and flash light for capturing photos and videos.
5.5. Storage Management
Your tablet comes with 64GB of internal EMMC storage. You can expand this storage up to 1TB using a microSD card (not included). Insert the microSD card into the designated slot on the SIM tray.

Figure 5.3: The tablet is powered by a MediaTek Octa-Core MTK8768 Processor, runs on Android 13.0, and includes 64 GB of internal memory and 4 GB of RAM.
5.6. Battery Usage Tips
The 5100 mAh battery provides approximately 7 hours of average usage. To optimize battery life:
- Adjust screen brightness.
- Close unused apps running in the background.
- Turn off Wi-Fi, Bluetooth, or 4G when not in use.
- Enable battery saver mode in settings.

Figure 5.4: The tablet features a 5100 mAh battery, USB Type-C with OTG support, a lightweight design at 345g, and a narrow 9.1mm profile with a premium silver tone finish.
6. Maintenance
6.1. Cleaning the Device
Use a soft, lint-free cloth to clean the screen and body of the tablet. Avoid using harsh chemicals or abrasive materials, which can damage the display or finish.
6.2. Software Updates
Regularly check for and install system updates to ensure your tablet has the latest features, security patches, and performance improvements. Go to Settings > System > System update.
6.3. Battery Care
- Avoid exposing the tablet to extreme temperatures.
- Do not let the battery completely drain frequently.
- Use only the original or certified compatible charger.
6.4. Storage Optimization
To maintain optimal performance, regularly clear unnecessary files, uninstall unused apps, and transfer large media files to external storage or cloud services.
7. Troubleshooting
If you encounter issues with your tablet, refer to the following common solutions:
| Problem | 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, perform a force restart by holding the power button for 10-15 seconds. |
| Wi-Fi connectivity issues | Restart your Wi-Fi router and the tablet. Forget the network in Wi-Fi settings and reconnect. Ensure you are within range of the Wi-Fi signal. |
| Slow performance | Close unused applications. Clear cache for frequently used apps. Check for system updates. Consider uninstalling unnecessary apps or moving large files to external storage. |
| Apps crashing or freezing | Force close the app from recent apps. Clear the app's cache and data in Settings > Apps. Reinstall the app if the problem persists. Ensure the tablet's software is up to date. |
| Touchscreen unresponsive | Restart the tablet. If the issue persists, a factory reset might be necessary (back up your data first). |
7.1. Factory Reset
If troubleshooting steps do not resolve the issue, you may need to perform a factory reset. Warning: A factory reset will erase all data on your tablet. Back up important data before proceeding.
- Go to Settings > System > Reset options.
- Select Erase all data (factory reset).
- Follow the on-screen instructions to confirm.
8. Specifications
Detailed technical specifications for the Acer One T9-422L Tablet:
| Feature | Detail |
|---|---|
| Brand | Acer |
| Model Name | T9-422L |
| Operating System | Android 13.0 |
| Processor | MediaTek MT8768 Octa Core, up to 2 GHz |
| RAM Size | 4 GB |
| Internal Storage | 64 GB EMMC |
| Expandable Storage | Up to 1 TB via microSD card |
| Screen Size | 8.7 Inches (22.09 cm) |
| Display Type | IPS Panel Multi Touch Display |
| Screen Resolution | 1340 x 800 Pixels |
| Brightness | 350 Nits |
| Rear Camera | 8 MP with Digital Zoom, Auto Focus, Flash Light |
| Front Camera | 5 MP |
| Connectivity | 4G-SIM Slot (Calling & VoLTE support), Wi-Fi 5 Dual-Band, Bluetooth |
| Battery | 5100 mAh Lithium Ion (Average 7 hours battery life) |
| Charging Port | USB Type-C (with OTG Support) |
| Dimensions (LxWxH) | 5.2 x 15.5 x 24.5 cm |
| Item Weight | 345 g |
| Color | Silver |
| Included Components | Tablet, Adapter, USB Cable, User Manual, Earphone, Warranty Card |
9. Warranty and Support
9.1. Warranty Information
Your Acer One T9-422L Tablet comes with a 1-Year Manufacturer's Warranty from the date of purchase. This warranty covers manufacturing defects. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear.
9.2. Customer Support
For technical assistance, warranty claims, or further inquiries, please contact Acer customer support. Refer to the warranty card included in your package for specific contact details and service center locations.





