Samsung Galaxy A7 2015 (samsung-a7)
|Name||Galaxy A7 (2015)|
|Chipset||Qualcomm Snapdragon 615 (MSM8939)|
|CPU||4x1.2 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53|
|Display||1080 x 1920|
|Unixbench Whet/Dhry score||1022.4|
|Note: This page is about 2015 version of Samsung Galaxy A7.|
|This device is based on the Snapdragon 615.|
See the SoC page for common tips, guides and troubleshooting steps
Users owning this device
Some variants are released with Kitkat 4.4, which doesn't boot arm64 kernel, so upgrade to Lollipop 5.0 or later first.
How to enter flash mode
Press Volume Down, Power, and Home all at the same time to boot to Odin mode. After lk2nd is installed, press Volume Down and Power at the same time.
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.
- Download lk2nd-msm8916.img from Releases page on Github.
- Boot your phone to bootloader (Odin/Download) mode by holding and while powering up.
- Follow lk2nd instructions to install lk2nd. Basically flash it to boot partition (
heimdall flash --BOOT lk2nd-msm8916.img)
- Follow Qualcomm_Snapdragon_410/412_(MSM8916)#Installation to install postmarketOS.
|Note: Enter lk2nd fastboot mode by pressing only+ (without ). Pressing additionally will bring you to the Samsung Download mode.|
|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 works partially. While displaying the UI works fine, adjusting the brightness doesn't work.
rt5033-charger driver is not available, so the charging is not controlled and there is no charging status reporting.
There is also a forgotten patch, Jakko is looking into this.
rt5033-charger driver issue. It's currently unable to power up a usb device in mainline. Try a hub with external power supply.
Currently WIP. It can be controlled with SG Micro SGM3140 charge pump LED driver.
Instead of 60 fps in video mode, panel
s6e3fa2-ams549eh01 runs at 30 fps in command mode. The framerate is reduced to 5/6x  on mainline, and it runs at only 25 fps now. Ideally, we should found a solution to covert the panel to video mode.
There is no successful attempt on SM-A700H for now.
$ dmesg | grep cyttsp5 [ 14.031305] cyttsp5 6-0024: Error on deassert int r=-6 [ 14.031344] cyttsp5 6-0024: Fail initial startup r=-19
Ambient Light/Proximity Sensor
The driver for
tmd3782 ambient light/proximity sensor is not available.
There are some issues on the hardware, which cause endless reboot even you have a 100% charged battery.