[Galaxy Grand Prime Original Android Development] remilia15:
LineageOS is a free, community built, aftermarket firmware distribution of Android, which is designed to increase performance and reliability over stock Android for your device.

#include <std_disclaimer.h>
/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*
*/

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. Lineage does still include various hardware-specific code, which is also slowly being open-sourced anyway.

We'll not support users and answer questions from users which:

are running a custom kernel

have flashed mods

modified system files

didn't follow our intructions word by word

are unfriendly

And most important: DON'T READ THE OP

What's working:

RIL [partially]

WiFi

Bluetooth

Camera

HW video codecs

Almost any other hardware stuffs are working properly

BUGS/Not working :

For screenshots and camera, check note (*)

Obviously, FM radio isn't supported, as there's no sources for it

Offline charging doesn't work

RIL [crashes while choosing network provider on 3G signal]

[Using STK makes RIL crash also]

WiFi Direct/hotspot doesn't work

[NOTE]:

If you couldn't take screenshots, go to /system/vendor/lib/hw, make a backup of android.hardware.graphics.mapper@2.0-impl.so somewhere else, then delete it from this folder

The camera preview will freeze and you can't capture or record after this. To restore original camera function (but will derp screenshot again), restore the backed up android.hardware.graphics.mapper@2.0-impl.so again to /system/vendor/lib/hw

First time installing LineageOS 15.1 to your Galaxy Grand Prime, or coming from another ROM:

Install latest TWRP Recovery MUST USE VERSION 3.2.2-0 OR ASSERT ERROR OCCURS

Reboot into Recovery using 3-button-combo (Vol-up+Home+Power)

Do a Nandroid backup! (Optional and only if you weren't running TouchWiz before)

WIPE (wipe data/factory reset + wipe cache partition + format /system partition)*

Install the ROM from sdcard using TWRP Recovery

Optionally install the Google Apps ( get it here: https://opengapps.org ) (pico GAPPS recommended) (*)

NOTE: First boot might take long time, due to deodexed build, so don't consider bootloop!!

Upgrading from an older build of this ROM

Wipe system partition, wipe dalvik-cache but not data partition

Optionally install Google Apps (GAPPS) (link above)

[NOTE]:

If you're about going to install GAPPS with ROM, install it right after you've installed the ROM, else you have to do a factory reset if you've booted the ROM first

This is Android Go build, which is "optimized" for devices with lower than 1GB RAM, so don't expect full features like older Android versions [should we need ordinary build also?]

ALPHA-1: Drive link

Want some screenshots? Get them in Screenshot tab above

Thanks to @Alando123 for providing screenies :")

XDA:DevDB Information

LineageOS 15.1, ROM for the Samsung Galaxy Grand Prime

Contributors

remilia15

Source Code: https://github.com/remilia15?tab=repositories

ROM OS Version: 8.x Oreo

ROM Kernel: Linux 3.10.x

ROM Firmware Required: Stock 5.1.1

Based On: LineageOS

Version Information

Status: Alpha

Created 2018-07-09

Last Updated 2018-07-21