What to do if unable to connect / connection is intermittent?
1. Try replacing the batteries and confirm whether the keyboard/mouse can be turned on and whether the battery level is sufficient.
2. Insert the USB receiver into your device (try a different one if necessary).
3. It can be used properly
What to do if some keys not working/key input delay/automatic key input?
1. Please replace the batteries and then try to re-pair.
2. If only one or a few specific keys are problematic, press the non-working key firmly for 5-7 seconds to see if it starts working normally.
How do I confirm that the keyboard is at low battery?
The power indicator on the keyboard will flash when the power is too low, until it is turned off. And problems such as response delaying, keys sticking may occur when in low battery.