Download HTC Desire 816 Official Marshmallow ROM [Pre-Rooted]

HTC recently rolled out the Android 6.0 Marshmallow update to Desire 816 with software version 3.12.401.4.The update comes to the device with a TWRP flashable official HTC firmware. It brings a brand new HTC Sense 7 user interface and Marshmallow firmware with build number 3.12.401.2. It is a pre-rooted ROM and comes with all the features from HTC firmware. As for now, the ROM works for only single-SIM variants and for the HTC Desire 816 A5 UL variant only. But with more development, dual-SIM support can be expected.

Download Rom

• [lock]HTC Desire 816 Rooted Marshmallow Stock ROM (.zip)[/lock]

[How to] install Android 6.0 Marshmallow on HTC Desire 816 using TWRP recovery.

1. Download and transfer Android 6.0 Marshmallow from  download section, you wish to flash to your device�s storage.
2. Boot your device into TWRP recovery.
3. Select �Wipe� from TWRP main menu and do a �Swipe to Factory Reset� on the bottom of screen.
   + Note: This will factory reset your device.
4. Go back to TWRP main menu, tap on �Install� and select the Marshmallow ROMs .zip file that you transferred to your device in Step 1.
5. After selecting the .zip file, do �Swipe to Confirm Flash� on the bottom of screen to begin the Marshmallow ROM installation process. This may take some time.
6. Once your ROM is successfully flashed, you�ll see �Wipe cache/dalvik� option, select it and then do �Swipe to wipe� on bottom of screen.
7. Once cache & dalvik wipe completes, hit the �Back� button on-screen and then select �Reboot System� button.

That�s all. Your device will now reboot with the Marshmallow ROM you just flashed. Since this will be the first reboot after flashing a new ROM, it might take some time to rebuild cache and finish boot, have patience.