Corsair Dark Core RGB won't connect wirelessly or Update Firmware.

[Fisch420]

So my Brother got an used Dark Core RGB quite a while ago and now gave it to me. But when i tried connecting it, it would only work wired. I tried a lot of things and found out that there is a firmware Update for the mouse. The big problem though is that for it to Update, it requieres a wireless USB-receiver, which we do not have due to it being bought used. How can i connect my Mouse using Bluetooth? (It does support Bluetooth connection) Do I need the Firmware Update for it to Work? How can i get it without the receiver?

[Corsair Albert]

Have you checked the manual on setting up Bluetooth?

[Onathus]

for make the update u need de usb cable only i think 

when i want to make an update for my darkcore icue ask to me to conn,ecte with cable