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[Tutorial] Upgrade HTC One M8 to CyanogenMod 11 M9 Android 4.4.4 Custom ROM

August 5, 2014 By Asif 1 Comment Filed Under: Android, Firmware, Tips and Tricks

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The CyanogenMod team recently announced the availability of a stable (snapshot) build their latest CM11 M9 custom ROM based on Android 4.4.4 KitKat for a great deal of devices including HTC One M8/One M7, Xperia Z2 and Xperia Z2 Tablet – bringing a slew of bug-fixes and feature enhancements for general user interface, Bluetooth, Email, notifications & lockscreen, Dialer, etc (full changelog given below).

CyanogenMod 11 M9 for HTC One M8

In this article I’ve put together a detailed step-by-step tutorial on how to download and install the CyanogenMod 11 M9 Android 4.4.4 KitKat custom ROM on your HTC One M8 (aka HTC One 2014). Just make sure you’ve carefully read the upgrade requisites so that you don’t get stuck in any system malfunctions.

Download CM11 M9 Android 4.4.4 KitKat Custom ROM

ROM Details

  • Model: m8
  • Device Name: HTC One M8
  • Firmware: CM11 M9
  • Android Version: Android v4.4.4 KitKat
  • Build: Snapshot
  • Date: 4th August, 2014
  • MD5 Sum: 0320e35c84aff7040c3b1f0e810a20ba

Download Links: Click here (231.06 MB) to download CyanogenMod 11 M9 Android 4.4.4 KitKat custom ROM for your HTC One M8. You can download the necessary KitKat-compatible Google apps (Gapps) for CM11 M9 here.

Changelog

  • Prevent accidental device wake-up inside a bag or pocket using a proximity sensor
  • Bug fixes for Heads up notifications
  • Improved spam notification filter
  • Revamped settings layout
  • Data usage information display on sim-less CDMA phones
  • Bluetooth compatibility enhancements
  • Support for Chinese and Korean in smart-dialer
  • Improved Torch performance
  • Added support for additional UI elements in themes
  • Double-tap sleep support while using secure keyguard
  • Encryption patch for LG smartphones
  • … and much more!

Install CM11 M9 Custom ROM on HTC One M8

1. Prerequisites

  • HTC One 2014 edition (M8) – it is not recommended for any other device!
  • A USB cable and latest HTC USB drivers installed on PC
  • Custom recovery like TWRP or CWM with root access on phone
  • Phone’s bootloader should be unlocked (visit this page)
  • At least 60% of remaining battery
  • Full backup of existing data present in phone’s internal memory. I’d recommend you to create Nandroid backup using CWM recovery as it creates a complete image of current OS.

Disclaimer: Even though this ROM has been fully tested on HTC One M8 and it is a stable (snapshot) build, neither we nor the developers shall be held liable for any kind of data loss or device malfunctions during or after the upgrade. You warranty will be lost and you’ll have to pay HTC to get your bricked device repaired. Therefore, proceed at your own risk!

2. Upgrade Procedure

1. Download CM11 M9 custom ROM and Google apps on your PC using the aforementioned download links.

2. Connect your One M8 to the PC as a mass storage device.

3. Copy “cm-11-20140804-SNAPSHOT-M9-m8.zip” and “gapps-kk-20140606-signed.zip” to the root directory of your phone’s SD card i.e. they shouldn’t be placed inside any folder.

4. After that, disconnect the USB and power cord and turn off your phone.

5. Now open the Bootloader mode by holding Volume Down + Power Button for 8-10 seconds until a menu appears on the screen. Select “Recovery” to enter the custom recovery mode.

6. Once you’ve opened the Custom Recovery (I’ll be using ClockworkMod recovery here), select “wipe data/factory reset” and “wipe cache partition” options to wipe out the current system.

7. Go to advanced > wipe dalvik cache to clear current app data. This step is highly recommended if you don’t want to get stuck in unwanted bootloops after flashing this ROM.

8. Next, return to the main menu. Select “install zip from SD card” option and choose “cm-11-20140804-SNAPSHOT-M9-m8.zip” file. It’ll take up to 5 minutes to complete.

9. If you want to install Google apps (Google+, Gmail, Play, Maps, etc.) on this new ROM, again select “install zip from SD card” option and choose “gapps-kk-20140606-signed.zip” to reflash the Gapps.

10. Upon completion, reboot your phone normally enjoy the new CyanogenMod 11 M9!

I hope I’ve outlined every step clearly, but if you still encounter any problem regarding the upgrade, feel free to mention it in the comments below!

Don’t forget to comment about your experience with this update! Just hit the share buttons below to share this article with your friends on Facebook, Google+ and Twitter.

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