1. Introduction
This manual provides detailed instructions for the SENGBIRCH Keyboard Case designed for iPad Pro 12.9 inch (1st and 2nd Generation). Please read this manual thoroughly before using the product to ensure proper operation and longevity.
1.1. Compatibility
This keyboard case is compatible with the following iPad Pro 12.9 inch models:
- iPad Pro 12.9 inch (1st Generation, 2015) - Model Numbers: A1584, A1652
- iPad Pro 12.9 inch (2nd Generation, 2017) - Model Numbers: A1670, A1671
Please verify your iPad model number before installation.
2. Package Contents
The package includes the following items:
- 1 x SENGBIRCH Backlit Keyboard Case
- 1 x USB/Type-C Charging Cable (for keyboard charging only)
- 1 x User Manual
3. Product Overview
Familiarize yourself with the components and features of your keyboard case.

Figure 1: Product Diagram with Key Features. This image illustrates the various ports and buttons on the keyboard case, including the camera cutout, volume and power buttons, charging port, charging interface, headphone jack, and protective cushions.
3.1. Multi-Angle Stand
The case features a 0-130 degree adjustable hinge, allowing you to set your iPad at various viewing angles for comfortable use. The shaft rotation design is simple and convenient, and the smart stay feature automatically turns to power-saving mode when the cover is closed.

Figure 2: Multi-Angle Stand Functionality. This image demonstrates the adjustable hinge mechanism, allowing the iPad to be positioned at multiple angles for optimal viewing and typing.
3.2. 7-Color Backlit Keyboard
The keyboard includes 7-color LED backlighting with 3 modes of brightness settings. This feature allows for comfortable typing in dim environments.

Figure 3: 7-Color Backlit Keyboard. This image highlights the keyboard's backlighting feature, showcasing the variety of colors available for enhanced visibility in low-light conditions.
4. Setup and Pairing
Follow these steps to connect your keyboard case to your iPad:
- Ensure the keyboard is fully charged. Connect the provided USB/Type-C cable to the keyboard and a power source. The charging indicator will show status.
- On your iPad, go to Settings.
- Select Bluetooth and turn it On. Your iPad will begin searching for devices.
- On the keyboard, press the "Fn" key simultaneously with the "C" key. The Bluetooth signal light on the keyboard will flash, indicating it is in pairing mode for approximately 3 minutes.
- On your iPad's Bluetooth settings menu, select "Bluetooth 3.0 keyboard" from the list of available devices.
- Once connected, the Bluetooth signal light on the keyboard will turn off, indicating a successful connection.
5. Operating Instructions
5.1. Backlight Control
To control the keyboard backlight:
- Press the light bulb icon key to turn the backlight on/off.
- Press the light bulb icon key repeatedly to cycle through the 7 available colors.
- Use the Fn + light bulb icon key to adjust the brightness levels (3 modes).
5.2. Auto Wake/Sleep Function
The keyboard case features an automatic wake/sleep function. When you open the keyboard case, your iPad will automatically wake up. Closing the case will put your iPad into sleep mode, conserving battery life for both your iPad and the keyboard.
6. Charging the Keyboard
To charge the keyboard, connect the provided USB/Type-C cable to the keyboard's charging port and a standard USB power adapter (not included). The charging time is approximately 2 hours. The keyboard offers:
- Standby Time: Up to 133 days
- Uninterrupted Working Time (without backlight): Up to 180 hours
- Uninterrupted Working Time (with backlight): Up to 5 hours
Note: The included USB/Type-C cable is ONLY for charging the keyboard, not for the iPad.
7. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 12.25"L x 8.9"W x 0.6"H (31.1 x 22.6 x 1.5 cm) |
| Item Weight | 2.35 pounds (1.07 kg) |
| Material | Aluminum Alloy Hard Shell |
| Connectivity Technology | Bluetooth 3.0 |
| Keyboard Description | Wireless, 7-Color Backlit |
| Battery Type | Lithium Ion (2 required for keyboard) |
| Charging Time | 2 hours |
| Standby Time | 133 days |
| Uninterrupted Working Time (no backlight) | 180 hours |
| Uninterrupted Working Time (with backlight) | 5 hours |
| Color | Silver |
8. Troubleshooting
8.1. Keyboard Not Connecting/Pairing
- Ensure the keyboard is fully charged. Low battery can prevent successful pairing.
- Make sure Bluetooth is enabled on your iPad.
- Confirm the keyboard is in pairing mode (Fn + C, flashing Bluetooth light).
- If "Bluetooth 3.0 keyboard" does not appear, try turning your iPad's Bluetooth off and on again, then re-enter pairing mode on the keyboard.
- If previously paired, try "forgetting" the device in your iPad's Bluetooth settings and re-pairing.
8.2. Keys Not Responding or Lagging
- Check the keyboard's battery level. Recharge if necessary.
- Ensure the keyboard is within effective Bluetooth range of your iPad (typically up to 10 meters).
- Restart both your iPad and the keyboard.
8.3. Auto Wake/Sleep Not Working
- Ensure your iPad is correctly seated in the case.
- Check your iPad's settings to ensure "Lock/Unlock" (or similar) is enabled under Display & Brightness.
9. Maintenance
- Keep the keyboard case clean by wiping it with a soft, dry cloth.
- Avoid exposing the product to extreme temperatures, direct sunlight, or moisture.
- Do not attempt to disassemble the keyboard case, as this may void any potential warranty and cause damage.
10. Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official SENGBIRCH website. Keep your purchase receipt as proof of purchase.




