Cubot X90 Smartphone User Manual

1. Introduction

This manual provides essential information for the safe and efficient use of your Cubot X90 smartphone. Please read this manual carefully before using the device to ensure proper operation and to prevent damage.

The Cubot X90 is a high-performance smartphone featuring a 6.6-inch FHD+ 120Hz display, a powerful MT6789 OctaCore processor, 16GB of RAM, and 256GB of internal storage. It is equipped with a 100MP main camera and a 32MP front camera, powered by a 5100mAh battery, and runs on Android 14.

2. What's in the Box

Upon opening the package, please verify that all items are present and in good condition:

• Cubot X90 Smartphone
• Power Adapter
• USB Cable (Type-C)
• SIM Ejector Tool
• Quick Start Guide
• Protective Case (may vary by region)

3. Device Layout

Figure 3.1: Front and back view of the Cubot X90 smartphone, showing the display and the circular camera module on the rear.

Figure 3.2: Front view of the Cubot X90 smartphone, highlighting the edge-to-edge display and the punch-hole front camera.

Figure 3.3: Side and back view of the Cubot X90 smartphone, showing the power and volume buttons on the side and the prominent circular camera array on the rear.

3.1. Buttons and Ports

• Power Button: Press and hold to power on/off or restart. Press briefly to lock/unlock the screen.
• Volume Buttons: Adjust media volume, call volume, or ringtone volume.
• USB Type-C Port: For charging and data transfer.
• SIM Card Slot: Insert Nano-SIM cards and a microSD card.
• Speaker: Audio output.
• Microphone: For calls and voice recording.

4. Setup

4.1. Inserting SIM Card and microSD Card

1. Locate the SIM card tray on the side of the device.
2. Insert the SIM ejector tool into the small hole next to the tray and push gently until the tray pops out.
3. Place your Nano-SIM card(s) and/or microSD card into the designated slots on the tray, ensuring correct orientation.
4. Carefully push the tray back into the slot until it is flush with the device.

4.2. Charging the Battery

Before first use, fully charge the device. Connect the USB Type-C cable to the phone's charging port and the other end to the power adapter. Plug the power adapter into a wall outlet. The charging indicator will appear on the screen. The Cubot X90 features a 5100mAh battery for extended usage.

4.3. Initial Power On and Setup Wizard

Press and hold the Power button until the Cubot logo appears. Follow the on-screen instructions to complete the initial setup, including language selection, Wi-Fi connection, Google account setup, and security settings.

5. Operating Instructions

5.1. Basic Navigation

• Home Screen: The main screen where you can access apps and widgets.
• Notifications Panel: Swipe down from the top of the screen to view notifications and quick settings.
• App Drawer: Swipe up from the bottom of the screen to access all installed applications.
• Multitasking: Swipe up and hold from the bottom of the screen to view recent apps.

5.2. Display and Performance

The Cubot X90 features a 6.6-inch FHD+ display with a 120Hz refresh rate, providing smooth visuals. The MT6789 OctaCore processor with 16GB RAM ensures fluid performance for gaming, streaming, and multitasking.

5.3. Camera Usage

The device is equipped with a 100MP main camera and a 32MP front camera. Open the Camera app to capture photos and videos. Explore various modes such as Portrait, Night, Pro, and Panorama for different shooting scenarios.

5.4. Battery Management

The 5100mAh battery provides extended usage. To optimize battery life, reduce screen brightness, disable unused connectivity features (Wi-Fi, Bluetooth, GPS), and close background applications when not in use. Access Battery settings for detailed usage statistics and power-saving modes.

6. Maintenance

6.1. Cleaning Your Device

Use a soft, lint-free cloth to clean the screen and body of the phone. Avoid using harsh chemicals or abrasive materials, as they may damage the device's surface.

6.2. Software Updates

Regularly check for and install software updates to ensure your device has the latest features, security patches, and performance improvements. Go to Settings > System > System update to check for updates.

6.3. Data Backup

It is recommended to regularly back up your important data (photos, contacts, documents) to a cloud service or a computer to prevent data loss.

7. Troubleshooting

This section addresses common issues you might encounter with your Cubot X90.

• Device not turning on: Ensure the battery is charged. Connect the charger and wait a few minutes before attempting to power on again.
• Screen frozen or unresponsive: Press and hold the Power button for about 10-15 seconds to force a restart.
• Poor network signal: Check if your SIM card is properly inserted. Move to an area with better network coverage. Contact your service provider if the issue persists.
• Battery draining quickly: Close unused apps running in the background. Reduce screen brightness. Disable Wi-Fi, Bluetooth, or GPS when not in use.
• Apps crashing: Clear the cache and data of the problematic app (Settings > Apps > [App Name] > Storage). If the issue continues, reinstall the app.
• Cannot connect to Wi-Fi: Ensure Wi-Fi is enabled on your phone and the router is working. Try restarting both the phone and the router.

If you encounter issues not covered here, please refer to the official Cubot support website or contact customer service.

8. Specifications

9. Warranty and Support

Information regarding the specific warranty period and terms for the Cubot X90 smartphone is not provided in this manual. Please refer to the warranty card included with your product or visit the official CUBOT website for detailed warranty information and customer support contacts.

For technical assistance, troubleshooting, or service inquiries, please contact CUBOT customer support through their official channels. Keep your purchase receipt as proof of purchase for warranty claims.