HTC One on display at a store. (Reuters)Reuters

Popular custom firmware developers, CyanogenMod team has released the new Android v4.4.4 KitKat CM11 M9 ROM to the 2013 flagship smartphone HTC One M7.

The new CyanogenMod CM11 M9 custom ROM is based on the AOSP (Android Open Source Project) v4.4.4 KitKat OS and is said to bring customization options to boost device performance, new visual interface, easy access to key apps and loads of personalization options such as-

  • Double-tap to sleep when using secure keyboard
  • Center clock support
  • Performance improvement in 'Torch'
  • Safe headset volume prompt option (when interfering with third party device- Jawbone, Square, etc.)
  • Additional Proximity wake-up support option – prevents accidental wake-up of device (when kept in bag or pocket), by using sensor.
  • Spam notification filtering
  • Data usage info (additional support for CDMA devices without SIM cards)
  • Additional improvements and highlighting option for 'Settings' search
  • Bluetooth improvements (adds A2DP profiles)
  • AVRCP 1.5 disable default option introduced for Bluetooth feature to fix various car unit compatibility issues
  • New Email - with a fix for saving attachments to storage for POP (Post Office Protocol)3 accounts
  • Translation options (developed by CM Crowdin Team)
  • Performance tweaks and many more improvements to enhance user-experience

Prerequisites (things to remember before installing Custom ROM):

  • Though installing custom ROM improve the device's performance and UI experiences, it makes the company warranty void and they will no longer be liable to provide updates in future [users can restore warranty by flashing the device with stock-ROM].
  • Make sure the device is rooted before going forward for custom ROM installation
  • This new CyanogenMod Android 4.4.4 KitKat CM11 M9 firmware has to be installed on the HTC One M7(GSM) model only; if tried on other devices, it might get bricked [To check your device model: Go to Settings >> About phone >> model number]
  • Installation of custom ROM requires clearing of memory in the smartphone, so make sure to back all the data by installing Clockwork Mod (CWM) Recovery/ TWRP in the smartphone.
  • Users make sure they have installed USB drivers on the PC, or else your phone (HTC One M7) smartphone will not be recognized by the computer.
  • Make sure your device has more than 80 percent battery, or else there is chance of smartphone getting temporarily bricked if the installation process is interrupted in the mid-way.

[Disclaimer: This procedure is very technical and should be performed by a person with sound knowledge of rooting (or manual software installation) Android devices. If the step-by-step installation process is not followed properly, there are chances of the smartphone getting bricked or being permanently irreparable. 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. Hence, users are advised to proceed with caution.]

Step-by-step installation procedure of CyanogenMod Android 4.4.4 KitKat CM11 M9 custom ROM for HTC One M7 (GSM) model:

Step 1: Download CyanogenMod Android 4.4.4 KitKat CM11 M9 custom ROM (here) in to your PC.

Step 2: Connect HTC One M7 to PC via USB cord.

[Note: Before plugging the phone to the computer, be sure that you have installed USB driver software, if not, click here to download the firmware]

Step 3: Then, place Android 4.4.4 KitKat zip file into the phone's SD card memory. [Note: Users are advised to paste the .zip file in SD card root, not in any other folder.]

[Note: Before installing the custom software, be sure that the device must have been rooted and has installed ClockworkMod Recovery tool.]

Step 4: Later, place boot.img file in to the android-sdk-windowsplatform-tools directory

Step 5: Now, turn off the device and disconnect from the PC.

Step 6: Perform the regular Bootloader mode sortie, by press holding 'Volume (Down)' and 'Power' buttons.

Step 7: After entering the Bootloader mode (on the phone), go to android-sdk-windowsplatform-tools directory (on the PC) and open Command prompt, then type in: 'fastboot flash boot boot.img' and press enter.

(To enter Command prompt: Shift + right-click >> open Command Prompt)

Step 8: Then, type - 'fastboot reboot' and press enter. Then, follow instructions displayed on the screen. Select BOOTLOADER option to enter Recovery Mode.

Step 9: After entering the Recovery mode, clear the phone memory, by choosing 'wipe data/factory reset' [Note: use Volume keys to navigate and power button to select options, while operating under Recovery Mode]

Step 10: Now, clear the cache memory by selecting 'wipe cache partition'.

Step 11: Then to go back to ClockworkMod recovery, and select 'advanced' and tap 'wipe dalvik cache' [Note: This step is optional, but many recommend this procedure so that user will not face boot loops or any other errors in the middle of custom ROM installation]

Step 12: Again come back to main recovery screen and then tap 'install zip from SD card'

Step 13: Then tap 'choose zip from sdcard' and go to Android 4.4.4 ROM .zip file in SD card and enter the installation process. [Note: use Volume keys to navigate and power button to select options]

Step 14: Once done with the installation process, navigate to '+++++Go Back+++++' and re-start the device by opting 'reboot system now' seen in the recovery menu.

Now, your device (HTC One M7) will take at a few minutes (only for the first time) to complete the booting process.

Head to Settings >> select About phone to confirm the installation of Android 4.4.4 KitKat CM11 M9 custom ROM.


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