In order to reset your keyboard, please follow these steps:
1. Turn keyboard off
2. Turn keyboard back on
3. Hold down Fn + Right Shift + Delete
The green LED light on the top right corner of the keyboard should flash. Once the light flashes, this means the keyboard has been reset. You will have to manually pair the keyboard to your computer one more time.
*This reset is for the Slim X1, X2 X3, and Compact Series Keyboards.