Bluetooth Pairing/Using for WIND X98 R2 by LDN

1.How to connect bluetooth when first time use?
  • The bluetooth switch is up to on, down to off. Turn on the switch, make sure the battery well connected to the daughterboard (this step already assembled),and the ribbon cable well connected with pcb,then you can find "LDN_BLE5_KB_0"  bluetooth on your device.


  • One bluetooth channel should connect one device(do not mix), for example, "LDN_BLE5_KB_0" connect your cellphone, then "LDN_BLE5_KB_1" should connect your computer.
  • When you plug USB_C cable with the keyboard, then it will use as wired automatically. The bluetooth device "LDN_BLE5_KB_0"can not be found.
  • The bluetooth PCB is keymapped by LDN program. LDN program:


2.Why I can not connect bluetooth or find "LDN_BLE5_KB_0"?

(It is better to check the bluetooth by your cellphone first, if the cellphone check the bluetooth is ok, the computer can not connect,then it may matters the computer,the bluetooth adapater.) The bluetooth adapter should be 5.0-5.2

Check the problems step by step:

①Multiple connection channels paired to the same host result in bluetooth error.

Press FN( R_Ctrl) + PB to delete all pairing information bluetooth, also delete the pairing on your cellphone or computer if connected previous, and then to check if can find "LDN_BLE5_KB_0" on your cellphone. Make sure this two key can trigger first.

Layer 1

②Battery problem

Check the remaining battery power on your computer.


3.List of shortcuts

FN+Home=Turn on or off light

FN+PS=Switch Win//Mac mode


FN+Page Up=Volume+

FN+Page Down=Volume-


FN+PB=Delete all pairing information Bluetooth

FN+F1=Switch to "LDN_BLE5_KB_0" bluetooth channel

FN+F2=Switch to to "LDN_BLE5_KB_1" bluetooth channel

FN+F3=Switch to to "LDN_BLE5_KB_2" bluetooth channel


4.How to set the bluetooth sleep time?



5.How to Adjust the color or effect of the Caps Lock?


The light of caps light also can be controlled by this.

6.How to adjust the light brightness?


7.How do I set macro?

for example, I want to set one key that press it will  “ctrl +P”

Set one key that show %


8.How to refresh the firmware and back to default setting?

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