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Samsung Galaxy Express SGH-I437 (samsung-expressatt)

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Revision as of 14:47, 30 May 2022 by LogicalErzor (talk | contribs)
Samsung Galaxy Express SGH-I437
Samsung Galaxy SIII SGH-I437
Samsung Galaxy SIII SGH-I437
Manufacturer Samsung
Name Galaxy Express SGH-I437
Codename samsung-expressatt
Released 2012
Hardware
Chipset Qualcomm MSM8960 Snapdragon S4 Plus
CPU Dual-core 1.5 GHz Krait
GPU Adreno 225
Display 480x800 AMOLED
Storage 8 GB
Memory 1 GB
Architecture armv7
Software
Original software Android 4.0 - 4.1
postmarketOS
Category testing
Pre-built images no
Mainline yes
postmarketOS kernel 3.4.106
Features
Flashing
Works
USB Networking
No data
Internal storage
No data
SD card
No data
Battery
No data
Screen
Partial
Touchscreen
Works
Multimedia
3D Acceleration
No data
Audio
No data
Camera
No data
Camera Flash
No data
Connectivity
WiFi
No data
Bluetooth
No data
GPS
No data
NFC
No data
Modem
Calls
No data
SMS
No data
Mobile data
No data
Miscellaneous
FDE
No data
USB OTG
No data
HDMI/DP
No data
Sensors
Accelerometer
No data
Magnetometer
No data
Ambient Light
No data
Proximity
No data
Hall Effect
No data
Haptics
No data
Barometer
No data


Contributors

LogicalErzor

Maintainer(s)

LogicalErzor

Users owning this device


How to enter download/flash mode

Start powered off. From there, hold the Volume Down button, Home button, and Power button. Once the phone buzzes, release the Power button.

There is also a way to enter Odin download mode without the 3 button combo (link). Instead of the resistor in this schematic being 150k or 619k, make it around 300k (which you could easily do with two 150k or 619k resistors). Will be useful if accidentally soft bricking device.

Installation

  • Enter Flash Mode
  • Flash pmOS using pmbootstrap flasher flash_rootfs
  • Flash kernel using pmbootstrap flasher flash_kernel

Current Known Problems

  • Red Tint
  • Power button doesn't do anything
  • Screen on 24/7
  • Only works on Weston

Mainline Progress

Mainline progress can be found here: https://gitlab.com/LogicalErzor/mainline-kernel-pmos-aports

Also look at the SoC page for general tips and tricks: https://wiki.postmarketos.org/wiki/Qualcomm_Snapdragon_S4_Plus_(MSM8960)

See also