Why won't my new HTC M9 phone start?

[AC Question]

new HTC M9 phone will not start

i have had the phone for one week and it has been fine
tonight i installed a 128 sd card and formatted it from the settings in the phone
i now have a problem where i cant boot the phone up using the side power button

 

[B. Diddy]

Re: new HTC M9 phone will not start

Welcome to Android Central! Does the phone even turn on? Is it stuck on the boot screen?