Samsung Galaxy Express SGH-I437 (samsung-expressatt)

Features
Flashing	Works
USB Networking	Works
Internal storage
SD card
Battery
Screen
Touchscreen
Multimedia
3D Acceleration
Audio
Camera
Camera Flash
Connectivity
WiFi
Bluetooth
GPS
NFC
Modem
Calls
SMS
Mobile data
Miscellaneous
FDE
USB OTG
HDMI/DP
Sensors
Accelerometer
Magnetometer
Ambient Light
Proximity
Hall Effect
Haptics
Barometer

Samsung Galaxy Express SGH-I437
	; Samsung Galaxy Express SGH-I437
Manufacturer	Samsung
Name	Galaxy Express SGH-I437
Codename	samsung-expressatt
Released	2012
Type	handset
Hardware
Chipset	Qualcomm Snapdragon S4 Plus (MSM8960)
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
Original version	4.0
Extended version	4.1
postmarketOS
Category	testing
Pre-built images	no
Mainline	yes
postmarketOS kernel	6.5_rc2

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