Samsung Galaxy Grand Max (samsung-grandmax)

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Samsung Galaxy Grand Max
Phosh
Phosh
Manufacturer Samsung
Name Galaxy Grand Max
Codename samsung-grandmax
Released 2015
Category community
Original software Android 4.4 / 5.1.1
postmarketOS kernel Mainline
Hardware
Chipset Qualcomm Snapdragon 410 (MSM8916)
CPU 4x 1.2 GHz Cortex-A53
GPU Adreno 306
Display 720 x 1280
Storage 16 GB
Memory 1.5 GB
Architecture armv7 / aarch64
Type handset
Unixbench Whet/Dhry score 1084.5
Features
USB Networking
Works
Flashing
Works
Touchscreen
Works
Display
Works
WiFi
Works
FDE
Works
Mainline
Works
Battery
Partial
3D Acceleration
Works
Audio
Works
Bluetooth
Works
Camera
Broken
GPS
Mobile data
Works
SMS
Works
Calls
Works
USB OTG
Partial
NFC
Unavailable
Sensors
Accelerometer
Partial
Magnetometer
Unavailable
Ambient Light
Broken
Proximity
Broken
Hall Effect
Unavailable
Barometer
Power Sensor
Misc
Camera Flash
Keyboard
Touchpad
USB-A
HDMI/DP
Ir TX
Ir RX
Stylus
Haptics
Ethernet
FOSS bootloader



This device is based on the Snapdragon 410.
See the SoC page for common tips, guides and troubleshooting steps

Users owning this device


Architecture

Note Note: Even though MSM8916 is capable of aarch64, the firmware of some variants were never updated with aarch64 support. Therefore, this device can only boot mainline on armv7 at the moment.

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 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!

LEDs

The LEDs on the touchkey are gpio-leds, which can be controlled by subsystem leds and udev rules.

More information on LEDs handling can be found at: LEDs.

Battery

Actually a sec-fuelgauge with rt5033-battery driver.

Charging

rt5033-charger driver is not available, so the charging is not controlled and there is no charging status reporting. There was a forgotten patch[1] from 2015 on the kernel mailing list. Jakko picked up the work on top of that, and the review started in February 2023 [2].

USB OTG

Another rt5033-charger driver issue. It's currently unable to power up a USB device in mainline; in some cases, it may be possible to use OTG with an USB hub that supports an external power supply.

Flash LED

Currently WIP. It can be controlled with SG Micro SGM3140 charge pump LED driver[3].

Accelerometer

lis2hh12 accelerometer is not so stable for auto screen rotation, which suggests you to use fixed portrait or landscape mode.

Touchkey

Touchkey type is unknown, so there is nothing done for it.

Ambient Light/Proximity Sensor

The driver for cm36686 ambient light/proximity sensor is not available.

See also

References