Hi!
I looked around a little and could not find a disassembly guide for the microphone for this model. Based on what I could see the microphone looks like it is molded in place, which would make it almost impossible to open without permanently damage the microphone.
Otherwise, the general rule would be to look for any seems and try to jam something into those seams.
In the image bellow I've marked the two seams I could see, if the microphone is damaged anyway (and you cannot RMA the microphone) you could always try breaking open those seams to see if it is doable without totally mangling the microphone (and upload some pictures of it here or in a guide)
I can also include this link to an exhaustive list of troubleshooting steps for general Turtle Beach headphones that could be tried before breaking the microphone.
Good luck,
Cheers
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