According to the XDA, Samsung was quick to release the kernel source code for the Exynos variant, but due to US carrier involvement, that is what most of the developer community is focused on. The Snapdragon variants (except the version sold in China) has a locked down bootloader so there isn’t much we can do with it unless an exploit comes out. There are some cases when an engineering kernel is released that helps us to gain root access, but full TWRP installs and custom ROM support have proven to be few and far between for these Snapdragon Galaxy Note devices. They have a pre-official build of LineageOS 15.1 for the Exynos Galaxy Note 9 (N960F/FDS/N).
- 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:
- Mobile Network (Calling, Data, etc.)
- Fingerprint Sensor
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.