Samsung Galaxy J7 Prime (samsung-on7xelte)

Features
Flashing	Works
USB Networking	Works
Internal storage	Works
SD card	Works
Battery	Works
Screen	Works
Touchscreen	Works
Multimedia
3D Acceleration	Works
Audio	Broken
Camera	Broken
Camera Flash	Broken
Connectivity
WiFi	Works
Bluetooth	Works
GPS	Broken
Modem
Calls	Broken
SMS	Broken
Mobile data	Broken
Miscellaneous
FDE
USB OTG
Sensors
Accelerometer	Works
Ambient Light	Works
Proximity	Works
Haptics	Works

Samsung Galaxy J7 Prime
	; J7 Prime running GNOME Mobile
Manufacturer	Samsung
Name	Galaxy J7 Prime
Codename	samsung-on7xelte
Released	2016
Type	handset
Hardware
Chipset	Samsung Exynos 7870 Octa
CPU	Octa-core 1.6 GHz Cortex-A53
GPU	Mali-T830 MP1
Display	1080 x 1920 PLS IPS
Storage	32 GB
Memory	3 GB
Architecture	aarch64
Software
Original software	Android
Original version	6.0.1
Extended version	8.1
postmarketOS
Category	testing
Pre-built images	no
Mainline	yes

Samsung Galaxy J7 Prime, also known Samsung Galaxy On Nxt and Samsung Galaxy On7 Prime, is an Exynos 7870 device released by Samsung in 2016.

Contributors

naproxen

Users owning this device

Buildingat90degreesC (Notes: Screen is cracked, touchscreen works fine.)
Naproxen (Notes: Mainlining Subject)
Otus9051
Tath1nhhdk
Th1nhhdk (Notes: cracked/broken screen)
Yuui (Notes: broken screen)

How to enter flash mode

When the phone is powered off, hold the Power, Home and Volume Down buttons to boot into download mode. A turquoise colored screen will appear, asking for confirmation. Press Volume Up to confirm. Your device is ready for flashing via a front-end such as Odin or Heimdall.

To boot into recovery, hold the Power, Home and Volume Down buttons.

Installation

Prerequisites

Make sure your phone:

Has its bootloader unlocked.

Preparation

Choose the following in the pmbootstrap init wizard:

Vendor: samsung
Device codename: on7xelte

To proceed with the installation run:

$ pmbootstrap install

This will begin preparing your installation in your host computer.

Flashing

After the installation process is completed, get your phone booted into download mode, Then run:

$ pmbootstrap flasher flash_kernel

The kernel gets flashed to your device. Now, the device will reboot automatically. Hold the key combination to reboot into download mode. Then run:

$ pmbootstrap flasher flash_rootfs

The rootfs is flashed and the device gets rebooted. It should reboot to postmarketOS now.

Downstream kernel

A port based on the downstream kernel exists which is left unmaintained in favour of the mainline kernel. An older revision of this page has more information about it.