Rii RT518S User Manual page 11

FAQ
Problem: Unit does not respond
Possible issue: 1. Low batterypower.
2. Unit is not turned on.
3. Not plug the USB receiver into your device's USB port.
Solution:
1. Charge the device for at least 15 minutes.
2. Check if the switch selected to the ON position.
3. Please plug the USB receiver (placed in the keyboard back slot) to your
device's USB port.
Problem: 1. Unit does not charge.
2. Unable to charge unit, won't work even when plugged in.
Low battery level light continuously blinks.
3. the item doesn't take a charge making it unless.
Possible issue: Defective battery
Solution: Contact support@riitek.com for a replacement.
Problem: the @ button isn't working.
Possible issue: System language do not t for keyboard.
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