[Samsung Galaxy S9 & S9+ Cross Device Development] jesec:
Note: This is not a ROM based on the ROM shipped with your device. Exynos variants such as International (F), International Dual(Hybrid)-SIM (F/DS), Korean (N) ONLY. In NO way it is compatible with Snapdragon variants including but not limited to American(U/U1/A/T/P/V), Chinese(0/8/6), Hong Kong(0), Japanese(SC-*), Canadian(W) variants.

LineageOS is a free, community built, aftermarket firmware distribution of Android 8.1 (Oreo), which is designed to increase performance and reliability over stock Android for your device.

LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.

All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review. You can also view the Changelog for a full list of changes & features.

Features Overview:

https://www.xda-developers.com/lineageos-15-feature-list-overview-screenshots-video/

Screenshots:

View attachment 4491847View attachment 4491848View attachment 4491849View attachment 4492992

Device Info:

Galaxy S9 (Exynos): https://wiki.lineageos.org/devices/starlte

Galaxy S9+ (Exynos): https://wiki.lineageos.org/devices/star2lte

What's working:

This build is an official LineageOS build. Compliance with our device support requirements is enforced and guaranteed. That means including but not limited to these hardwares will work:

Wi-Fi

Bluetooth

Mobile Network (Calling, Data, etc.)

Audio

USB

GPS

Camera

Fingerprint Sensor

NFC

Etc. Check device support requirements for more.

What's not working:

Applicable exceptions granted in device support requirements.

Obviously Samsung's own features such as Samsung Pay, KNOX, Theme Center, Game Launcher, etc. won't be ported to LineageOS. We may have our own implementation to similar functions, though.

Iris sensor does not work because AOSP upstream does not support that yet.

IMS services (VoLTE, VoWiFi, etc). Samsung has their own proprietary implementation. It is not really possible to easily port that to LineageOS.

Instructions:

Make sure TWRP has been installed and functional.

Download the latest build (and optionally gapps).

Reboot to recovery

Wipe data and cache (required if you switch from other ROMs)

Flash the latest build (and gapps)

Reboot

LineageOS updater will handle updates automatically (OTA).

If you upgrade manually from older official releases to newer releases, you don't need to wipe your data or reflash gapps.

Downloads:

Galaxy S9 Exynos (G960F/FDS/N): https://download.lineageos.org/starlte

Galaxy S9+ Exynos (G965F/FDS/N): https://download.lineageos.org/star2lte

Root addon: https://download.lineageos.org/extras

Google Apps: https://wiki.lineageos.org/gapps.html

Reporting Bugs:

https://wiki.lineageos.org/bugreport-howto.html

DO NOT Report bugs if you're running a custom kernel or you installed Xposed

Grab a logcat right after the problem has occurred. (Please include at least a few pages of the log, not just the last few lines, unless you know what you're doing.)

If it is a random reboot, grab /proc/last_kmsg. (Do not bother getting a logcat unless you can get it just before the reboot. A logcat after a reboot is useless)

If the problem disappears after running "setenforce 0" from a root shell, grab /proc/avc_msg.

Remember to provide as much info as possible. The more info you provide, the more likely that the bug will be solved. Please also do not report known issues.

Please use LineageOS BUG tracker to report BUGs. BUGs reported in the thread could be ignored due to large number of posts.

Channel and Group:

LineageOS Channel (News and Updates):

https://t.me/lineageos_star

AOSP-like ROMs (not limited to LineageOS) Group (Discussion, Quick Tech Support and Early Testing):

https://t.me/joinchat/DTrGs0ygFKxHhc3bb11YKw

XDA:DevDB Information

LineageOS for Galaxy S9 and S9+, ROM for the Samsung Galaxy S9

Contributors

jesec

Source Code: https://github.com/LineageOS/

ROM OS Version: 8.x Oreo

ROM Kernel: Linux 4.x

Version Information

Status: Stable

Created 2018-04-24

Last Updated 2018-05-05