If your Slim X2 Bluetooth Backlit Keyboard is having connection or pairing issues, resetting it to factory settings often helps. Follow these steps:

1. Turn the keyboard off, then turn it back on.
2. Press and hold FN + Right Shift + Delete until the green LED light in the top right corner flashes once.

When the green light flashes, the reset is complete. You will need to pair the keyboard to your devices again. If problems continue, charge the keyboard, since a low battery can also cause connection trouble.