HTC is yet to rollout the Android 5.1 update to the One M9, but the first custom ROM for the handset based on the latest version of Lollipop has made its way to the Internet.
The ROM comes from popular developer LlabtooFeR, and is based on the 2.7.401.1 firmware for the handset.
The notable changes in the Android 5.1 firmware for the One M9 includes native display color control, multi user support, and battery improvements. There are also some slight UI changes and new animations throughout Sense 7. The most notable UI changes have made done to the volume slider, which now features quick access to the Do Not Disturb mode.
Since this is a custom ROM, it goes without saying that One M9 owners will need to have an unlocked bootloader with a custom recovery installed on the device to install it. Additionally, the ROM is only meant for One M9 devices with S-OFF, which can be achieved through Sunshine.
If you don’t want to go through the hassle of installing the custom ROM, you can always wait for HTC to rollout the update. With an Android 5.1 based firmware leaking on the Internet for the One M9, the official update from HTC should not be far behind.
Download: Maximums HD 5.0