Read on to know what are the prerequisites and how to install Omni 7.1 Unified Build on OnePlus 3 and OnePlus 3T. Omni 7.1 Unified Build for OnePlus 3/3T is a nightly build, which means the ROM is a testing version. You might experience some unknown bugs and it cannot be used as a daily driver. Also, you will not get all the features.

About: OmniROM is one of the few developers who build custom ROM for a wide range of Android devices. It is lightweight and said that it is a more secure custom ROM. Note: Like any custom ROM, Omni 7.1 is also requires latest version of TWRP recovery and root access on your OnePlus 3/3T. If not, check this guide. Important: As always, backup all your music, photos, data, apps, call logs and SMS/text before flashing. Prerequisites: – Omni 7.1 Unified Build for OnePlus 3/3T requires clean installation, otherwise it will not boot. – Your OnePlus 3/3T should be running on OxygenOS 4.0.2 (Not Beta). If not, install OxygenOS 4.0.2 [guide], then install TWRP recovery and gain root.

How to Install Omni 7.1 Unified Build on OnePlus 3/3T

  1. Download Omni 7.1 Unified Build zip file [HERE] and transfer the zip files to your phone’s internal memory. Also, download Gapps package zip file [HERE] (arm 64, 7.1) and save it on your phone.
  2. Now, boot your phone into TWRP custom recovery and wipe data, cache and factory reset.
  3. Go back to the main recovery menu, select Install, navigate to the ROM zip file, and flash it. Wait until the flashing process finishes, then install Gapps zip file.
  4. Once the installation has finished, return to the main menu and reboot your phone. Enjoy OmniROM 7.1.1 (Android 7.1.1 Nougat). Leave your views in the comment section below. (Source)