HTC One, formerly known by the code name M7, is HTC’s flagship device for 2013. The device features a powerful quad-core 1.7 GHz Qualcomm Snapdragon 600 processor (APQ8064T), 2 GB of RAM, 32 or 64 GB of storage, a 4.7″ 1080p Super LCD 3 display with 468 ppi, a 4 MP “Ultrapixel” camera with an f/2 lens and large pixels, and a 2300 mAh battery.

CyanogenMod team are working on providing the latest Android updates for many devices. They have come up with CM 12.1 ROM running on Android 5.1.1 for HTC One M7. If you want to install this ROM on HTC One M7, follow the guide below.

One M7

Disclaimer: Follow the instructions at your own risk. If the device gets damaged, the writer or the owner of the site must not be held responsible.

Pre-requisites and Backing up your HTC One:


Steps to install CM 12.1 ROM on One M7:

  1. Create a Nandroid backup from recovery, in case anything goes wrong.
  2. Download the CM 12.1 ROM zip file and Gapps zip file and transfer it to the phone.
  3. Switch off the phone and boot the phone into Recovery mode.
  4. Next, wipe the cache and the dalvik cache.
  5. Now go to “Install zip” and then “Select zip”. Choose the CM 12.1 ROM zip file.
  6. Now again clear cache and dalvik cache.
  7. Go to ”Install zip”, then “Select zip”. Choose the Gapps zip file.
  8. Then perform full data wipe task. To do so, click “Wipe Data/Factory Reset”, then choose “Yes” on next screen to confirm.
  9. After the process is complete, reboot the phone.

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