I have a iPhone 8 and recently updated my iOS to 11.3.1 every since I've updated my phone my Dre Beats X will not connect

I have a iPhone 8 and recently updated my iOS to 11.3.1 every since I've updated my phone my Dre Beats X will not connect

Read more: https://iphoneus.org/faq/i-have-a-iphone-8-and-recently-updated-my-ios-to-11-3-1.html