HTC One M9 Plus update: 2.15.709.1 is Prime Camera edition's Marshmallow upgrade
Verizon starts rolling out Android 7.0 Nougat update for the HTC One M9 - PhoneArena
HTC One M9 Starts Receiving its Official Android Nougat Update
HTC on Twitter: "So sweet. Android Nougat—the next version of Google's Android—will be coming to the HTC 10, HTC One A9 & HTC One M9. https://t.co/cB5S2zv0PW" / Twitter
AT&T's HTC One M9 will soon get its Android 7.0 Nougat-flavored upgrade - Android Authority
Steps to Update HTC One M9 to Android 7.1.1 Nougat ROM
htc one m9 google account FRP LOCK Android 7.0 - YouTube
T-Mobile HTC One M9 Nougat Update Released | Ubergizmo