Win7 does not support Bluetooth 4.0, so please follow the below instruction:
1.
Make sure your computer has the Bluetooth 4.0 Modular or use ours.
2.
Install the BLE Driver.
Note: If your computer’s Bluetooth Modular is 2.0/3.0, it needs to be shut down.
1.
If your computer does not have Bluetooth Modular, then ignore note 1.
2.
Do not plug in our 4.0 adapter before you disable the original one and install the new driver.
After you install the driver, please switch your keyboard to L1 Mode.
Some of the Intel Chip set will be fine without the switching to L1.
http://pan.baidu.com/s/1hrFxiCk
Win8/10 Operating Guide:
Win8/10 support Bluetooth 4.0 already, if your computer does not have Bluetooth or it is not
4.0(Disable it while it is not 4.0), then you need to plug in the External Bluetooth 4.0
Adapter(Driver install automatically ).
Hardware Updates:
http://www.obins.net/anne_manual_book/annefw.html