1. Introduction
Thank you for choosing the NILLKIN Bumper Combo Backlight Bluetooth Keyboard Case. This manual provides essential information for setting up, operating, and maintaining your keyboard case. This product is designed to enhance your tablet experience by providing robust protection and laptop-like functionality.
Compatible Models:
- Samsung Galaxy Tab S9 (11 inch) (SM-X710, SM-X716B)
- Samsung Galaxy Tab S9 Plus (S9+) (12.4 inch) (SM-X810, SM-X816B)
- Samsung Galaxy Tab S10 FE (10.9 inch)
- Samsung Galaxy Tab S10 FE Plus (13.1 inch)
- Samsung Galaxy Tab S10 Plus (12.4 inch)
- Samsung Galaxy Tab S9 Ultra (14.6 inch)
2. Product Features
- Bumper Combo Design: Provides comprehensive protection for your tablet.
- Removable Keyboard: Detachable keyboard for flexible use.
- Patented Sliding Camera Protection: All-metal camera cover with a 1.1mm lifted bezel to prevent scratches and protect privacy.
- Enhanced Drop Protection: Features four-corner airbags and a thickened PC hard backplane for shockproof and drop-resistant performance.
- Multiple Viewing Angles: Adjustable stand allows for various viewing angles (110-180 degrees) and multiple split modes (Laptop, Read, View, Sketch).
- Backlit Keyboard: 7 available backlight colors with 4 levels of brightness for comfortable typing in any lighting condition.
- Smart Trackpad: Large area touchpad with anti-mistouch technology, supporting multi-touch gestures for precise control.
- Full Row of Shortcut Keys: Dedicated shortcut keys for quick access to common functions.
- Long Battery Life: Built-in 500mAh lithium battery offering up to 100 hours in non-backlit mode and 14 hours in backlit mode. Charges via Type-C port.

Image: Features including lens slider and four-corner airbags for protection.

Image: Demonstrates multiple angle adjustments and split modes (Laptop, Read, View, Sketch).

Image: Close-up of the backlit keyboard, highlighting comfortable typing and 7 color options.
3. Package Contents
Please check the package for the following items:
- 1 x NILLKIN Bumper Combo Keyboard Case
- 1 x Type-C Charging Cable (Charger not included)
- 1 x User Manual
Note: Tablet and S Pen are NOT included.
4. Specifications

Image: Detailed product specifications table.
| Feature | Specification |
|---|---|
| Product Name | Bumper Combo Keyboard Case |
| Bluetooth Version | Bluetooth 3.0 |
| Effective Operating Range | Within 10 meters |
| Working Voltage | 3.0 - 4.2V |
| Working Current | < 6mA |
| Charging Time | ≥ 2.5 hours |
| Lithium Battery Capacity | 5000mAh |
| Working Time (Non-backlight mode) | 100 hours |
| Working Time (Backlight mode) | 14 hours |
5. Setup
5.1 Installing Your Tablet
- Carefully align your Samsung Galaxy Tab with the case.
- Gently press the tablet into the protective bumper frame, ensuring all corners and edges are securely seated.
- Verify that all ports, buttons, and the camera are accessible and not obstructed.
5.2 Charging the Keyboard
Before first use, fully charge the keyboard.
- Connect the provided Type-C charging cable to the charging port on the keyboard.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate. Once fully charged (approximately 2.5 hours), the indicator light may change or turn off.

Image: Visual representation of battery life and Type-C charging port.
5.3 Bluetooth Pairing
- Ensure the keyboard is charged and powered on.
- On your Samsung Galaxy Tab, go to Settings > Connected devices > Bluetooth.
- Turn on Bluetooth.
- The tablet will search for available devices. Select the keyboard (usually named something like "NILLKIN Keyboard" or similar Bluetooth name) from the list.
- Follow any on-screen prompts to complete the pairing process. A successful connection will be indicated on your tablet.
6. Operating Instructions
6.1 Keyboard Usage
Once paired, you can use the keyboard for typing, navigation, and executing commands just like a laptop keyboard.
6.2 Touchpad Usage
The integrated smart trackpad supports various multi-touch gestures for efficient navigation and control. The anti-mistouch technology automatically disables the touchpad when typing to prevent accidental cursor movements.

Image: Smart trackpad with high sampling rate for smooth and responsive operation.
6.3 Backlight Control
The keyboard features 7 backlit colors and 4 levels of brightness. Use the dedicated backlight keys to adjust the settings:
- Backlight Brightness: Press the Fn + Light Bulb key (usually F9 or a dedicated key) to cycle through brightness levels.
- Backlight Color: Press the Fn + RGB key (usually F10 or a dedicated key) to change the backlight color.
6.4 Shortcut Keys
The keyboard includes a row of shortcut keys for quick access to common tablet functions. Refer to the diagram below for specific functions:

Image: Diagram illustrating the function of each shortcut key.
| Key Number | Function |
|---|---|
| 1 | Home |
| 2 | Back |
| 3 | Search |
| 4 | Turn down/up brightness |
| 5 | Switch language |
| 6 | Copy-Paste |
| 7 | Previous song / Play/Pause / Next song |
| 8 | Mute/Turn down/up volume |
| 9 | Backlight brightness |
| 10 | Lock the screen |
| 11 | Delete |
6.5 Mode Switching and Angle Adjustment
The detachable keyboard design and adjustable stand allow for various modes:
- Laptop Mode: Tablet upright with keyboard attached for typing.
- Read Mode: Keyboard detached or folded back, tablet in a comfortable reading angle.
- View Mode: Tablet angled for media consumption.
- Sketch Mode: Tablet laid at a low angle for drawing or writing with a stylus.
The stand supports angle adjustments between 110 and 180 degrees. You can also switch between horizontal and vertical screen orientations by adjusting the tablet within the case.

Image: Tablet in the case demonstrating various usage modes and orientations.
6.6 Camera Protection
Utilize the patented sliding camera cover to protect your tablet's camera lens from scratches and dust when not in use, and to ensure privacy.

Image: Close-up of the patented sliding camera protection mechanism.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the keyboard and case. For stubborn dirt, a slightly damp cloth can be used, but ensure no moisture enters the keyboard or charging ports.
- Battery Care: To prolong battery life, avoid fully discharging the keyboard frequently. Charge it regularly, especially if not used for extended periods.
- Storage: Store the keyboard case in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Liquids: Keep the keyboard away from liquids to prevent damage.
8. Troubleshooting
8.1 Keyboard Not Connecting via Bluetooth
- Ensure the keyboard is powered on and fully charged.
- Make sure Bluetooth is enabled on your tablet.
- Try unpairing and re-pairing the keyboard from your tablet's Bluetooth settings.
- Restart both your tablet and the keyboard.
- Ensure the keyboard is within the effective operating range (within 10 meters).
8.2 Keys Not Responding
- Check if the keyboard is properly connected via Bluetooth.
- Ensure the keyboard battery is not critically low.
- Clean any debris that might be stuck under the keys.
8.3 Backlight Not Working or Changing
- Ensure the keyboard is powered on.
- Press the backlight control keys (Fn + Light Bulb / RGB) to adjust.
- Check battery level; low battery might disable backlighting.
8.4 Touchpad Issues
- Ensure the touchpad is not accidentally disabled (e.g., by anti-mistouch technology during typing).
- Check Bluetooth connection.
- Clean the touchpad surface.
8.5 Keyboard Not Charging
- Verify the Type-C cable is securely connected to both the keyboard and the power source.
- Try a different Type-C cable or USB power adapter.
- Ensure the power source is functional.
9. User Tips
- Model Compatibility: Always double-check your Samsung Galaxy Tab model number (e.g., SM-X810) to ensure it matches the compatible models for this keyboard case.
- Language Settings: If your keyboard layout does not match your typing language, adjust the keyboard language settings on your Samsung Galaxy Tab.
- Regular Charging: For optimal performance and to ensure the backlight functions correctly, charge the keyboard regularly, especially before extended use.
- Explore Shortcut Keys: Familiarize yourself with the shortcut keys to significantly speed up your workflow and tablet navigation.
10. Warranty and Support
For warranty information, technical support, or any product-related inquiries, please contact the NILLKIN customer service or the seller from whom you purchased the product. Keep your purchase receipt as proof of purchase.
11. Product Demonstration Video
Video: A short demonstration of the NILLKIN Bumper Combo Keyboard Case features and functionality.





