Samsung Galaxy J7 (SM-J700P) has received support from Lineage OS. First build of LineageOS 14.1 (unofficial), based on the latest Android 7.1.2 Nougat has released for the device. Here is the installation guide for everyone talks custom ROM, LineageOS 14.1 on Samsung Galaxy J7 2015 edition. The ROM brings Android 7.1.2, various new features and stock Android UI to the device.
This guide lets you know how to get LineageOS 14.1 running on your Samsung Galaxy J7 SM-J700P. Thanks to XDA member minz1, the ROM brings latest Android 7.1.2 Nougat to the device. However note that this is an unofficial nightly build, which means the ROM does not have support from official LineageOS team and it is released for testing purpose. You may come across glitches while using it on your phone.
Before you start, note that this LineageOS 14.1 build supports Snapdragon variant Galaxy J7 (SM-J700P) only (2015 edition, codenamed j7ltespr). Support for the Exynos and dual-SIM variants J7 may be on the way.
Also, to install LineageOS 14.1, your Galaxy J7 should be on firmware version J700PVPS1AQD1. If not, download the update [HERE] and flash it via Odin. Once done, proceed with installing LineageOS 14.1
Note: We are assuming that you have already rooted your Galaxy J7 and installed latest version of TWRP (download) recovery on it.
Disclaimer: Please follow this guide at your own risk. Though we are putting our level best to provide this tutorial at its maximum perfection and accuracy, we can’t take responsibility for anything that goes wrong. This guide is intended for technically talented users only.
2. Reboot your device to TWRP recovery. To do so, press and hold Volume Up, Home, and Power button few seconds.
3. In recovery, perform a full wipe (cache, dalvik cache, data/factory reset) by selecting ‘Wipe’ option.
5. Before rebooting, once again wipe cache partition and data, and then reboot your phone.
The first boot will takes around 10 – 20 minutes. Once booted up, set up your phone and enjoy Android 7.1.2. If you come across any issue, leave it in the comment section to get help. (Source – XDA)