Samsung Galaxy J7 Prime (samsung-on7xelte)
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.
![]() J7 Prime running GNOME Mobile | |
Manufacturer | Samsung |
---|---|
Name | Galaxy J7 Prime |
Codename | samsung-on7xelte |
Released | 2016 |
Category | testing |
Original software | Android |
Original version | 6.0.1 |
Extended version | 8.1 |
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 |
Type | handset |
USB Networking |
Works |
---|---|
Flashing |
Partial |
Touchscreen |
Works |
Display |
Works |
WiFi |
Works |
FDE | |
Mainline |
Broken |
Battery |
Works |
3D Acceleration |
Broken |
Audio |
Broken |
Bluetooth |
Broken |
Camera |
Broken |
GPS |
Broken |
Mobile data |
Broken |
SMS |
Works |
Calls |
Works |
USB OTG | |
NFC |
Unavailable |
Accelerometer | |
---|---|
Magnetometer |
Unavailable |
Ambient Light |
Unavailable |
Proximity | |
Hall Effect |
Unavailable |
Barometer |
Unavailable |
Power Sensor |
Unavailable |
Camera Flash | |
---|---|
Keyboard |
Unavailable |
Touchpad |
Unavailable |
USB-A |
Unavailable |
HDMI/DP |
Unavailable |
Ir TX |
Unavailable |
Ir RX |
Unavailable |
Stylus |
Unavailable |
Haptics | |
Ethernet |
Unavailable |
FOSS bootloader |
Unavailable |
Contributors
- naproxen
- sleirsgoevy (Mainlining efforts in a6lte)
- th1nhhdk
- Otus9051
Users owning this device
- Naproxen (Notes: Porting postmarketOS)
- Otus9051
- Tath1nhhdk
- Th1nhhdk (Notes: cracked/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.
Download mode doesn't seem to like flashing images containing subpartitions. So, it isn't possible to flash any combined boot and root image file. It should be theoretically possible to install postmarketOS in download mode with split images. |
Installation
Prerequisites
Make sure your phone:
- Has its bootloader unlocked.
- Has a custom recovery installed (such as TWRP)
Preparation
Choose the following in the pmbootstrap init
wizard:
Vendor: samsung Device codename: on7xelte User interface: xfce4
xfce4
is tested and works out of the box. Other UIs are not guaranteed to work.
gnome-mobile
comes with wayland as its dependency. Since wayland doesn't run in downstream kernels, xorg needs to be installed.
Extra packages: xorg-server
To proceed with the installation run:
$ pmbootstrap install --android-recovery-zip
This will begin installing pmbootstrap prepare a recovery zip file. By default, the rootfs is flashed in the SYSTEM
partition of the device.
In order to change the default partition (let's say, the USERDATA
partition), append --recovery-install-partition=USERDATA
to the above command.
After the installation process is completed, get your phone booted into recovery, and enable sideloading via adb. Then run:
$ pmbootstrap flasher --method=adb sideload
The recovery zip gets flashed to your device. Reboot to system when it's done.