Vortex 250 reset help

My Vortex is all set up and I have been flying it for 6 months. I am now having problems with the receiver and I want to install a new receiver in the quad. Can you tell me the steps to reset the quad and if there is a button to push where is it located. Thank you.

Mike

If you flash new firmware via the immersionRC software it will reset the settings. But to add a new receiver you can change the settings via betaflight