If you observe a flashing blue light, it indicates that the keyboard's battery is low and needs recharging. When charging, the red light should turned off when the keyboard is fully charged.
If charging issues persist, attempt using another USB to USB cable of the same type.
A flashing orange light means that the keyboard is no longer paired with its USB device.
To re-pair the keyboard, follow these steps:
1. Turn off the remote.
2. Press and hold the F1 key without releasing it.
3. Turn on the remote, then immediately release the F1 key.
4. Wait a few seconds for the keyboard to reconnect.