Samsung Galaxy Ace 3 Duos (samsung-logands)

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

Samsung Galaxy Ace 3 Duos
	; GT-S7272 running Xfce4
Manufacturer	Samsung
Name	Galaxy Ace 3 Duos
Codename	samsung-logands
Released	2013
Type	handset
Hardware
Chipset	Broadcom BCM21664
CPU	1.0 GHz Cortex-A9
GPU	VideoCore IV
Display	480x800 TFT
Storage	4 GB
Memory	1 GB
Architecture	armv7
Software
Original software	Android
Original version	4.2.2
FOSS bootloader	no
postmarketOS
Category	testing
Pre-built images	no
Mainline	no
postmarketOS kernel	3.4.5

Not to be confused with the LTE model, which has a Qualcomm SoC! (If you have a letter after the model number, you have the LTE model.)

Maintainer(s)

AppleCross

Contributors

AppleCross

Users owning this device

AppleCross (Notes: GT-S7272)

How to enter flash mode

Download mode: While the device is turned off, hold Power + Home + Volume Down, and confirm the action by pressing Volume Up thereafter.
Recovery mode: While the device is turned off, hold Power + Home + Volume Up.

Installation (Android Recovery Zip)

pmbootstrap init # Choose samsung-logands
pmbootstrap install --android-recovery-zip  
pmbootstrap export
# Find installation .zip in '/tmp/postmarketOS-export' folder.
# Put .zip on SD card. 
# Boot into recovery mode
# Install .zip using recovery tool like CWM or TWRP.

Installation

pmbootstrap init # Choose samsung-logands
pmbootstrap install
# Boot into download mode (Odin mode) before running the command below
pmbootstrap flasher flash_rootfs
# Boot into download mode again
pmbootstrap flasher flash_kernel

WiFi

Wifi isn't working properly, there are two problems:

Broadcom Wifi kernel module isn't installing automatically.
Connection to Wifi doesn't work, only Wifi scanning is working.

see this comment[1] from MR for installing the kernel module manually.