Good news for the HTC One M9 users because now HTC One M9 users can test the more advanced version of the Android Nougat through the latest build of Lineage OS 14.1. The Lineage OS is one of the most reliable custom ROMs available for Android devices and now Lineage OS recently released the latest custom ROM based on Android 7.1.2 Nougat for HTC One M9. This custom ROM includes all AOSP features and new security patch. The Lineage OS 14.1 custom firmware brings all the official Android 7.1.2 Nougat and Lineage OS features along with a lot of customizations and tweaks. Also, the ROM is stable, fast, smooth and can be used as a daily driver without any problem. This is not officially announced by HTC / Google but just a custom ROM. Installing Lineage OS 14.1 custom ROM required the bootloader to be unlocked and the latest custom recovery like TWRP or CWM (Clockwork Mod) should be already installed on it.
By following this step by step guide, you can easily update your HTC One M9 to Android 7.1.2 Nougat via Lineage OS 14.1 custom ROM. This custom ROM is specially designed for HTC One M9 to increase performance and reliability over stock Android. The Lineage OS 14.1 comes with a number of minor bugs have been fixed like lead to battery problems and fixes the Extra Tiles issues. Before proceeding, don’t forget to take a full backup of all your valuable data. If you are interested in installing Lineage OS 14.1 Android 7.1.2 Nougat custom ROM on your own HTC One M9 then go ahead and follow the given steps.
This guide containing the Lineage OS 14.1 Android 7.1.2 Nougat custom ROM is working with the HTC One (M9). Do not try to install this ROM on any other device, or your device might get bricked.
AndroidXDA.net will not be held responsible for any damage occurred to your HTC One (M9) during or after the installation of Lineage OS 14.1 Custom Firmware. Proceed at your risk.
Before Getting Started:
- Make sure that the battery level of your HTC One (M9) is at least about 80% before proceeding to the installation guide.
- Download and install proper USB Drivers for the HTC One (M9) on PC.
- It is highly recommended to take a good backup of your important data and settings on the phone using a custom recovery such as CWM or TWRP. In case anything goes wrong then you’ll be able to restore your data.
- Enable USB Debugging Mode on One (M9) from Settings > Developer Options.
- The HTC One (M9) should be rooted with the latest version of CWM, or TWRP recovery installed that it supports the new Android 7.1.2 Nougat-based ROM installations.
- Download Lineage OS 14.1 Android 7.1.2 Custom ROM
- Download Google Apps
Steps to Update HTC One (M9) to Lineage OS 14.1 Android 7.1.2 Nougat Custom ROM:
Step No 1: – First, download the Lineage OS 14.1 Android 7.1.2Nougat custom ROM and Google Apps package from the above links on the desktop of your PC. Do not extract these files.
Step No 2: – Now, connect your HTC One (M9) to the PC using its USB data cable.
Step No 3: – Move the Lineage OS 14.1 firmware, and Google Apps zipped files to the root folder of SD card on your phone.
Step No 4: – Transfer the boot.img file to android-sdk-windows\platform-tools directory on your PC.
Step No 5: – Next, power OFF the HTC M9 to boot into Bootloader/Fastboot Mode. Also, disconnect the USB cable.
Step No 6: – Power ON the device while pressing and holding the Volume Down + Power buttons at the same time.
Step No 7: – Once your M9 is in the Fastboot mode, navigate to android-sdk-windows\platform-tools directory and open Command Prompt within the folder.
Step No 8: – Type the following command and press Enter.
fastboot flash boot boot.img
Step No 9: – Now, type the following command and hit Enter.
Step No 10: – Follow the on-screen instructions and choose BOOTLOADER -> RECOVERY.
Step No 11: – While the phone is in TWRP Recovery, perform a full data wipe by tapping on the ‘Wipe’ button. Then swipe on the “Swipe to Factory Reset” option at the bottom.
Step No 12: – Navigate to the Recovery main menu and tap on the ‘Install’ button. Select the firmware.ZIP file that you have already transferred to the root folder of your SD Card on the phone.
Step No 13: – Swipe on the “Swipe to Confirm Flash” option to confirm installation on the next screen. The installation process will be initiated.
Step No 14: – After the installation is finished successfully, you will see a similar screen like the following:
Step No 15: – Repeat the above-given step for the installation of Google Apps package on your HTC One M9.
Step No 16: – Finally, select the “Reboot System” button to reboot your phone.
Your HTC One M9 will boot now, and it may take about 4-5 minutes to boot for the first time after installation.
Done! You have installed Android 7.1.2 Lineage OS 14.1 Nougat custom ROM on HTC One M9.