When entering the activation code, it says that this code is not valid

Activate what? More details please. If you have headset what is the exact model?

This product was activated THXSpatial 

Device Kraken tournament editions/n: (Removed serial number for security purposes)

Just install Synapse 3 software - it’ll be available out of box without activation needed.

You don’t have to install THX Spatial audio external app (if you have already installed it, then remove it).

This program is installed Synapse 3 software 
But it only works if the device is connected via USB, but I wanted to configure the operation of this device for the mini-jack connector

not possible, unless you’ll buy code for external thx spatial app: https://www.razer.com/p/RZ11-13000-0001

Can you clarify that in the photo this does not apply to THX

Hello, FiszPL. Thank you for helping. Stay awesome!

Hi Skadi20,

Looks like the serial number of your headset is not found in our system. To assist properly, please PM me the photo of your device serial number so I can verify its model and help you accordingly. Save the shareable files via any online drive account listed here. Thanks!

*Thread locked to curb the conversation to PMs.