Broken head phone cord for seround sound and headphone

Šñøwÿ Thûñdêr iFixit cannot fix it but we can give you advice on how to fix it yourself. Post some images of the damaged cable and see if you can get the colors of the individual wires on those pictures. Use this guide for that Adding images to an existing question

If possible you also want to give us more information about the model of your headset