HTC One M9 owners can now upgrade their handsets with crDroid's latest custom firmware based on Android 5.1.1 Lollipop to unleash series of new features. In addition to improving the overall performance of the handset, the new firmware comes with features such as Heads up customization, Omni-Ambient display, AdBlocker, DND, Slimpie controls and more.

New Features:

  • AdBlocker
  • Omni-Ambient Display
  • Heads up customization
  • Expand Status Bar with Quick access button
  • Do not disturb
  • Blacklist
  • SlimRoms custom lockscreen shortcuts
  • Turn on/off navbar
  • SlimPie controls
  • Force expanded notification option and lot more.

Installing custom ROM on a handset involves a lengthy procedure, especially if you are doing it for the first time.

Here is the list of things you must remember before installing a new custom ROM:

  1. This guide is to help install new crDroid Android 5.1.1 Lollipop on HTC One M9 only. Trying to install on other handsets may brick the device.
  2. Take a back up of all the data on your phone before proceeding as the process will require you to wipe clean you handset.
  3. Ensure the target HTC One M9 is rooted.
  4. Install necessary USB drivers on your PC for the computer to recognize your HTC smartphone.
  5. Charge your smartphone to 80 percent or above to avoid any interruptions during the installation. This can result in temporarily bricking your device.

Once your device is ready, proceed with the installation. Below is a complete guide to assist you in installing crDroid Android 5.1.1 Lollipop on your HTC One M9 (via Team Android)

Disclaimer: The process of installing custom ROM on a rooted device requires technical expertise and knowledge of basic troubleshooting. This guide helps you install the custom ROM on a select model and there are chances of the handset getting bricked if not followed properly. International Business Times, India Edition cannot be held responsible for any damage or claims from readers if the procedure does not yield the required results or if the smartphone is bricked. Users are advised to proceed with caution.

Step-by-step guide to install crDroid Android 5.1.1 Lollipop on HTC One M9:

Step 1: Download crDroid Android 5.1.1 Lollipop custom ROM and Google Apps on your computer.

Step 2: Connect HTC One M9 to PC via USB cable. Ensure smartphone drivers are installed if the PC does not recognize the handset. Also make sure the handset is rooted and has ClockworkMod Recovery tool installed before proceeding further.

Step 3: Copy the downloaded Android 5.1.1 Lollipop zip file and GAPPS zip and paste it on to the SD card root folder.

Step 4: Paste boot.img file into android-sdk-windowsplatform-tools directory.

Step 5: Turn off your smartphone and disconnect it from the PC.

Step 6: Enter Bootloader or Fastboot mode by holding down volume down and power button together.

Step 7: Go to android-sdk-windowsplatform-tools directory (on the PC) and open Command prompt, then type fastboot flash boot boot.img and press enter.

Step 8: Then type fastboot reboot and press enter. Follow the onscreen instructions. Select Bootloader and then enter Recovery Mode.

Step 9: Clean the phone memory by choosing "wipe data/factory reset" in the Recovery Mode. Use volume keys to navigate up and down and power button to select.

Step 10: Clear cache by selecting "wipe cache partition."

Step 11: Return to ClockworkMod recovery, go to Advanced and select "wipe dalvik cache."

Step 12: Go to the main screen and select "install zip from SD card."

Step 13: Select "zip from SDcard" from the options and navigate to Android 5.1.1 ROM zip file.

Step 14: Wait for the installation to complete and repeat the same steps to install Google Apps.

Step 15: After installing Android 5.1.1 ROM and GAPPS, go to "+++++Go Back+++++" and select "reboot system now."

Step 16: The handset will restart now and take longer than usual. Wait patiently and then go to Settings > About Phone to confirm the successful installation of crDroid Android 5.1.1 Lollipop custom ROM.

[Source: Team Android]