Differences between the Two Keyboards
- KTU-401 (B099): This is a three - Bluetooth - enabled folding keyboard with a numeric keypad.
- KTU-402 (B099T): This is a three - Bluetooth - enabled folding keyboard with a touchpad.
Re-Pairing Steps:
Fully charge the keyboard and then try re-pairing. If the issue is with a single or a few specific keys, press and hold the non-working key for 5-7 seconds to see if it starts working normally.
We do not offer individual keycaps for sale. First, check if there is any damage to the keycap clips. If not, try pressing the keycap firmly back into place.
First, clean the gaps between the keys. Then, press and hold the problematic key for 5-7 seconds and release to see if it resolves the issue.
The multi-function keys at the top of the keyboard have different default functions depending on the operating system. If a phenomenon occurs that is opposite to what is described in the manual, it is recommended to use the following shortcut keys to force a switch to the currently used system.
FN function key details:
For Windows system: FN + SHIFT (left) + D
For Mac system: FN + SHIFT (left) + F
For iOS system: FN + SHIFT (left) + A
For Android system: FN + SHIFT (left) + S
FN + A: iOS system
FN + S: Android system
FN + D: Windows system
FN + F: Mac system
Try using a different charging cable and check if the light turns on and off normally.
Note: The charging indicator light is located at the top of the keyboard in the shape of a battery. A red light indicates that the keyboard is charging, and it will turn off when fully charged.
First, fully charge the keyboard. Then, go to the touchpad settings on your computer and adjust the pointer speed.