Using the pointed end of a spudger, gently pull at the edges of the sliding connector of the headband cable to disconnect it from the mainboard.

Gently peel the the whole headband cable up with the tape starting from the connector.

There are soldered NC microphone cables directly below the headband cable that may also be stuck to the tape. Be very gentle during this process, making sure you gently unstick the tape from these cables as you peel the headband cable away.

There's also yellow tape on the circuit board protecting chips on the mainboard from interference. Also avoid peeling this up.