HTC started rolling out Android 6.0 Marshmallow version 3.36.709.3 for HTC One M9 in Taiwan. The users in Taiwan have reported about receiving the Marshmallow OTA notification on their devices, the Android 6.0 Marshmallow OTA will be rolled out for other regions anytime soon. The Android 6.0 Marshmallow for HTC One M9 is packed with latest and improved features. The popular Google Now application with updated Google Now on tap feature, Android Doze and Adaptive Storage feature is also included in the update. If you are living in Taiwan and you have the HTC One M9 in your hand then what are you waiting for just go ahead and follow the below method to grab the Android 6.0 Marshmallow firmware on your HTC One M9.
The Android 6.0 Marshmallow for HTC One M9 will contain 2 parts, the first one is a little update with size 65 MB you have to download it via OTA and after installation you need to download the complete Android 6.0 Marshmallow OTA with size 1.38 GB. So it is recommended to have a working internet connection and your battery must be charged atleast 80%.
— 薑餅 (@Masini1491) January 7, 2016
How to download Stock Android 6.0 Marshmallow for HTC One M9
The OTA method: This is the first and preferably the most easiest method to update your device, you can use your device to download the firmware file if available and then the device will ask you to install the updates now or later. To check whether your device is eligible for OTA Firmware update, unlock your device & navigate to
Settings >> About device >> Software update >> Check for updates
This will require a working internet connection to connect to the Samsung servers. You will receive a notification about the latest firmware availability click install to flash the firmware or tap install later to flash the latest update anytime later.
Let us know if you have updated your HTC One M9 to Android 6.0 Marshmallow