Revolution HD custom firmware based onAndroid 6.0 Marshmallow is now available for HTC One M9. Following is the long list of features that this custom firmwarecomes packed in with. Here are the all the details and steps you need to know to install Revolution HD custom ROM on HTC One M9.

-Android 6 Marshmallow based custom ROMs for Samsung, HTC, Sony, Nexus, LG

Revolution HD features:

Removed software (CPU) rendering –fullSnapdragon 810 (GPU) renderingFully optimized and tweakedRoot accessUnsecured boot.imgNewest BusyBoxRAM optimizationsSystem signatures checkenabledfor system security and safetyImproved virtual memory managementSpeed optimizationsEnabled GPU UI renderingData, cache and system partitions mounting tweaksBloatware applications removedAll /system applications updated to latest availableAll /data applications updated to latest availableImproved CPU governors performanceMost optimal system schedulerDisabled kernel debugging for better performanceZipaligned (Improved RAM management)Zipalign on boot (for user applications on data partition)Fully de-odexedinit.d scripts (BusyBox run-parts) supportAuto init.dpermissionsset on bootsysro/sysrw commands supportExcellent battery life!Improved EXT4 performanceOpenVPN supportMost up-to-date system filespermissions

Prerequisites to install Android 6.0 ROMon HTC One M9:

Backup any important datafrom your HTC One M9 as a complete wipe will be required during the flashing process.Install USB drivers for your HTC device. Check outthis link.Enable USB debugging option on your device:Settings>DevelopmentOptions>USB debugging.Ensure that yourHTC One M9's boot loader is unlockedand that you have arecovery toollikeTWRPor CWM.Your device must be charged to at least 80% of power.

Flash Revolution HD Android 6.0 on HTC One M9:

Required files:

DownloadRevolution HD Marshmallowcustom ROMfor HTC One M9. Extract the boot.img file.Also download theGAppspackage for your device.

Step 1:Connect your HTC One M9 to your computer using a USB cable and copy the ROM and GApps zip filesto your phone’s SD card root folder.

Step 2:Copy / paste the boot.img file to theAndroid-sdk-windows\platform-toolsdirectory.

Step 3:Disconnect theUSBcord andpower off your HTC device.

Step 4:Boot your device in the Bootloader / Fastboot mode by pressing and holding theVolume DownandPowerkeys.

Step 5:Once in the Fastboot mode, navigate toandroid-sdk-windows\platform-toolsdirectory on your computer and open command prompt withShift + Right-clickcombo and click on theOpen Command Prompt.

Step 6:Type the following string into the window:

fastboot flash boot boot.imgand press Enter.Fastboot reboot-press Enter again.

Step 7:Follow the on screen instructions and selectBootloader> go toRecovery.

Step 8:Once in recovery, perform wipe data task: from the CWM recovery menu, selectwipe data / factory resetand confirm the process.

Step 9:Also performwipe cache partitionfollowed bywipe dalvik cache(from Advanced).

Step 10:From recovery main menu, selectinstall zip fromsdcardfollowed bychoose zip from sdcard.Locate the Revolution HDMarshmallow custom firmware file and confirm the flashing process.

Step 11:Once the ROM is flashed successfully, repeat the above step, but select GApps package this time.

Step 12:Return back to main recovery menu and reboot yourHTC One M9into the new custom ROM. First boot takes a good 5 minutes so please be patient.Enjoy the new ROM on your M9.