HTC has started rolling out Android 6.0 Marshmallow to the One M9. Initial rollout area is the USA and to unlocked units. Other regions and variants will follow.
You can run manual checks for the update by going to your M9’s Settings -> About -> Software updates.
We love to hear from you - your opinions, insights and experiences with smartphones and other gadgets. Be a part of Mobility Arena's active community by sharing a comment below if comments are enabled for this page.