Samsung Galaxy A3 2015 (samsung-a3)

From postmarketOS Wiki
Note This page is about the dedicated port of this device. There is also an optional generic port available for this device - see Generic MSM8916 (qcom-msm8916).
Samsung Galaxy A3 (2015)
Samsung Galaxy A3 (2015) running Plasma Mobile on mainline with hardware accelerated graphics
Samsung Galaxy A3 (2015) running Plasma Mobile on mainline with hardware accelerated graphics
Manufacturer Samsung
Name Galaxy A3 (2015)
Codename samsung-a3
Released 2014
Type handset
Hardware
Chipset Qualcomm Snapdragon 410 (MSM8916)
CPU 1.2 GHz Quad ARM Cortex-A53
GPU Adreno A306
Display 540x960 AMOLED (AMS452EF01 panel with a S6E88A0 controller)
Storage 8GB (All variants except A300FU)
16 GB (A300FU)
Memory 1GB (All variants except A300FU)
1.5 GB (A300FU)
Architecture aarch64
Software
Original software Android
Original version 4.4
Extended version 6.0.1
postmarketOS
Category community
Pre-built images yes
postmarketOS kernel Mainline
Unixbench Whet/Dhry score 1033.5
Optional Generic Port Generic MSM8916 (qcom-msm8916)
Features
Flashing
Works
USB Networking
Works
Internal storage
SD card
Battery
Works
Screen
Partial
Touchscreen
Works
Multimedia
3D Acceleration
Works
Audio
Works
Camera
Camera Flash
Connectivity
WiFi
Works
Bluetooth
Works
GPS
Works
NFC
Works
Modem
Calls
Works
SMS
Works
Mobile data
Works
Miscellaneous
FDE
Works
USB OTG
Works
HDMI/DP
Sensors
Accelerometer
Works
Magnetometer
Works
Ambient Light
Broken
Proximity
Broken
Hall Effect
Works
Haptics
Barometer
This device is based on the Snapdragon 410.
See the SoC page for common tips, guides and troubleshooting steps

Contributors

Users owning this device

  • 0 (Notes: aftermarket screen)
  • Bastindo (Notes: works)
  • Chappo (Notes: WORKS, Model SM-A300Y Australia, Phosh/Edge Installed)
  • Colaur (Notes: Works with pmOS edge and Phosh)
  • GloomyJD (Notes: Works, cracked glass, daily driver (LineageOS))
  • Gregorni (Notes: Runs postmarketOS, available for testing)
  • Imre (Notes: pmos on sdcard, can't reliably flash internal ROM)
  • KenOokamiHoro (Notes: SM-A3000 (China), Dual boot with LineageOS 17.1)
  • Lm2 (Notes: postmarket works almost well, testing the operatin'system)
  • Maccraft123 (Notes: broken screen :()
  • Mis012 (Notes: contributor)
  • MMK21 (Notes: Running pmOS Edge + Plasma Mobile)
  • PL (Notes: pmOS with Plasma Mobile. Working fine.)
  • TravMurav (Notes: SM-A300F, no display)


Architecture

Some variants are released with Kitkat 4.4, which doesn't boot arm64 kernel, so upgrade to Lollipop 5.0 or later first.

Installation

lk2nd is a secondary bootloader that provides a standard fastboot interface, which can be used to boot postmarketOS without Android boot flashed or pmbootstrap flasher flash_kernel.

  1. Download lk2nd-msm8916.img from Releases page on Github.
  2. Boot your phone to bootloader (Odin/Download) mode by holding Volume Down and Home while powering up.
  3. Follow lk2nd instructions to install lk2nd. Basically flash it to the boot partition (heimdall flash --BOOT lk2nd-msm8916.img)
  4. Follow Qualcomm_Snapdragon_410/412_(MSM8916)#Installation to install postmarketOS.
Note Note: Enter lk2nd fastboot mode by pressing only Volume Down + Power (without Home). Pressing Home additionally will bring you to the Samsung Download mode.

Audio

Icon WARNING: The speakers are rather loud on 100% volume and may produce distorted sound that may damage your speakers after long use. Please make sure to use reasonable volumes - your ears and your speaker will thank you!

Screen

Screen works partially. While displaying the UI works fine, adjusting the brightness doesn't work.

Touch keys

See Tm2-touchkey.

Flash LED

Currently WIP. It can be controlled with SG Micro SGM3140 charge pump LED driver[1].

WiFi

If your WiFi connection is unstable, consider disabling Bluetooth. 

# rfkill block bluetooth

Ambient Light/Proximity Sensor

The driver for cm36652 ambient light/proximity sensor is not available.

Hardware details (hwtest) for SM-A300F

Category Model Path Status Value
framebuffer msm /sys/class/graphics/fb0 Working U:540x960p-0
drm /sys/class/drm/card0-DSI-1 Working 540x960
magnetometer bmc150_magn /sys/bus/iio/devices/iio:device2 Working 0.4, -0.52, -0.78 gauss
accelerometer bmc150_accel /sys/bus/iio/devices/iio:device1 Working -8.89, -0.94, -4.25 g
temperature bmc150_accel /sys/bus/iio/devices/iio:device1 Working 20.5 deg C
vibrator pwm-vibrator /dev/input/event6 Working
input samsung-a2015 Headset Jack /dev/input/event7 Working
input tm2-touchkey /dev/input/event5 Working
input Zinitix Capacitive TouchScreen /dev/input/event4 Working
input GPIO Hall Effect Sensor /dev/input/event3 Working
input GPIO Buttons /dev/input/event2 Working
input pm8941_resin /dev/input/event1 Working
input pm8941_pwrkey /dev/input/event0 Working

Note: this SM-A300F scored whet_dhry = 915.5, comparable to other Snapdragon 410.

See also

References

  1. ↑ arm64: dts: qcom: msm8916/39-samsung-a2015/fortuna/serranove: Add flash LED
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