How To Update HTC One M7 to CyanogenMod 13 ROM Featuring Android 6.0 Marshmallow

HTC owners have some great news that their One M7 handset can be upgraded now to the most awaited Marshmallow firmware. The latest beta build of CyanogenMod 13 is now available for HTC One M7 which is based on Android 6.0 Marshmallow. HTC may not release further stock upgrades but still if you want to experience the latest Android software on your device then go ahead and follow the given guide. This CM13 Android 6.0 Marshmallow custom ROM can be installed on the international HTC One M7 model as well as on the AT&T and T-Mobile editions.

Keep in mind that the ROM given in this guide is a custom ROM which is developed by the third-party developers, not officially released by HTC. Thus you’ll need a custom recovery like CWM or TWRP in order to flash it on your HTC One M7 and as CM13 ROM is in its early stages so you might face a few inherent bugs or broken features such as camera, calls, microphones and Bluetooth. It is expected that these bugs will be fixed in future releases but if you want to experience stability and improvements with the latest Android M then go ahead and follow the given guide. All you need to have the latest version of a latest custom recovery already installed running on Android 4.4.2 +, KitKat or Lollipop firmware on your device before proceeding to the installation guide.

Note:

This guide containing the Android 6.0 CyanogenMod 13 ROM is only working with the HTC One M7 (1st Gen). Do not try to flash this custom firmware on any other device or any incorrect variant, or your device might get bricked. You must check the model number of the device first.

Warning:

AndroidBlog will not be responsible for any kind of damage occurred to the HTC One M7 during or after the installation of the Android 6.0 CyanogenMod 13 custom build. Proceed at your own risk.

Pre-Requirements:

• Take a proper backup of all your important data of the One M7 before proceeding to the installation guide using a recommended custom recovery like CWM or TWRP.
• Enable USB Debugging Mode on your HTC One M7 by navigating to Settings > Developer Options.
• The HTC One M7 should be rooted with the latest version of custom recovery installed.
• The bootloader of the phone must be unlocked.
• Check the battery level of your One M7, it should be charged at least about 70% to prevent unexpected shutdowns while installation.

Required Files:

• Download CyanogenMod 13 Android 6.0 Marshmallow ROM
• Download Google Apps Package
• TWRP Recovery

Steps to Install CyanogenMod 13 Android Marshmallow ROM on HTC One M7:

1:- Download the CM13 Android 6.0 Marshmallow custom ROM (cm-13-20151102-UNOFFICIAL-m7.zip) and Google Apps zipped files from the above links on your PC (probably on desktop).

2:- Copy/paste the downloaded .zip files to the internal storage of your phone.

3:- Turn OFF the device in order to boot into recovery mode.

4:- Turn ON the HTC One M7 while pressing and holding Volume Down + Power keys at the same time, then release Power button while holding Volume Down button.Press Volume Down to navigate to Recovery once the phone will enter recovery mode.

5:- While the One M7 is now in recovery mode, make a proper Nandroid backup of all your important data.

Recovery > Select Backup > Confirm the backup process.

6:- After the backup is completed successfully, perform a full data wipe by navigating to Wipe > Advanced wipe and then choose Dalvik Cache, System, Data and Cache. Swipe on wipe option.

7:- Go back to the recovery menu and tap on Install. Locate the folder where you have already transferred the ROM file previously.

8:- Tap on the ROM .zip file and Swipe to confirm flashing.

9:- Now, install Google Apps package by repeating the above steps.

10:- Reboot the M7 device by selecting Reboot system after the installation is finished.

Done! You have successfully installed the Unofficial CM13 based on Android 6.0 Marshmallow custom ROM HTC One M7.