LineageOS is a free, community built, aftermarket firmware distribution of Android 7 (nougat), 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.
What's working :
RIL
Wifi
Camera
Gps
Sensors
Etc
Known issues:
Front Camera (works but only 5mp)
FingerPrint
Downloads:
Rom: Last Build
Gapps: opengapps.org
Wifi Fix
Sources:
Device Tree: https://github.com/adrian1234a/android_device_xiaomi_ugg
Vendor: https://github.com/adrian1234a/android_vendor_xiaomi_ugg
Kernel Sources: https://github.com/imzf/ulysse/tree/ugg
XDA:DevDB Information
LineageOS 14.1 For UGG, ROM for the Xiaomi Redmi 5A
Contributors
adrian1234a
ROM OS Version: 7.x Nougat
ROM Kernel: Linux 3.x
Version Information
Status: Testing
Current Stable Version: LineageOS 14.1
Stable Release Date: 2018-06-15
Created 2018-06-15
Last Updated 2018-06-15