razer blackshark v2 x kulaklığım zaten kayıtlı gözüküyor

This translates as:

Even though I bought it new, it says the product is already registered

Hi Eymen71,

I'm here to help! Did you purchase the device brand new? Where did you buy it? Please send me a PM with your headset’s serial number and proof of purchase so I can check if the store is listed as a Razer authorized reseller. Kindly save the shareable file on Google Drive, and let’s continue our conversation in English to avoid misunderstandings. Thanks!

*Thread locked to curb the conversation to PMs.