Galaxy S 3 4G (I9305)¶

• Table of contents
• Galaxy S 3 4G (I9305)
  • Replicant status
  • Replicant installation
  • Replicant usage
  • Replicant build
  • Replicant development
  • Freedom and privacy/security evaluation
  • Research
    • Hardware table
    • Software Configuration
      • Partitions
    • Mainlining

	Device	Galaxy S 3 4G (I9305)
	Manufacturer	Samsung
	Release date	September 2012
	Codename	i9305
	Status	Uncompleted
	Supported models	LTE: I9305
	Latest images	Replicant 6.0 0002

Replicant status¶

Replicant status for the Galaxy S 3 (I9305): ReplicantStatus Replicant 6.0

Also, the Galaxy S3 4G (I9305) has an issue that makes it suddenly reboot. See the related bugreport for more details.

Replicant installation¶

Replicant installation for the Galaxy S 3 4G (I9305): ReplicantStatus Replicant 6.0

Replicant usage¶

• Galaxy S 3 (I9305) compass calibration: GalaxyS3I9300CompassCalibration

Replicant build¶

Replicant build for the Galaxy S 3 (I9305): GalaxyS3I9305Build

Replicant development¶

• Galaxy S 3 (I9305) UART: GalaxyS3I9300UART

Freedom and privacy/security evaluation¶

See GalaxyS3I9305PrivacySecurityEvaluation for more details.

Research¶

• QMI-RIL development of a modem interface
• The Galaxy SIII 4G (I9305) has a Qualcomm MDM9615 modem. The quectel-modems osmocom wiki has some information related to running GNU/Linux on that modem, and information in its hardware:
  • Qualcomm_MDM9615
  • Samsung_Galaxy_SIII_4G_

Hardware table¶

Component	Name	Source	Status
SoC	Samsung Exynos 4412	iFixit	Linux kernel support
GPU	Mali 400	https://secure.wikimedia.org/wikipedia/en/wiki/Exynos	Linux kernel and secret userspace
Audio Codec	WM8994	Linux kernel	Linux kernel support (ALSA)
Modem	Qualcomm MDM9615	Linux kernel	free library for QMI protocol, no free RIL yet
Wi-Fi	BCM4334	Linux kernel	Linux kernel support, proprietary loaded firmware
Bluetooth	BCM4334	Linux kernel	Linux kernel support, proprietary loaded firmware
NFC	PN544	Linux kernel	Linux kernel support
GPS	Qualcomm MDM9615	Linux kernel	partly free userspace
Accelerometer	LSM330DLC	Linux kernel	Linux kernel support, free userspace
Compass	AKM8975	Kernel sources	Linux kernel support, free userspace
Light/proximity sensor	CM36651	Kernel sources	Linux kernel support, free userspace
Gyroscope	LSM330DLC	Kernel sources	Linux kernel support, free userspace
Barometer	LPS331AP	Kernel sources	Linux kernel support, free userspace
Camera (back)	S5C73M3	Linux kernel	Linux kernel support, free userspace
Camera (front)	S5K6A3	Linux kernel	Linux kernel support, free userspace, proprietary loaded firmware

Software Configuration¶

• GalaxyS3I9305Pit: Galaxy S 3 (I9305) PIT (a partition table)
• system fstab: fstab.smdk4x12

Partitions¶

WARNING some content may not be the same on your device

PIT	Linux name	mount point	partition type	block device	Description
SYSTEM	SYSTEM	/system	ext4	mmcblk0p13	system partition
BOOT	BOOT	None	bootimage (mkbootimg)	mmcblk0p8	boot.img partition
RECOVERY	RECOVERY	None	bootimage (mkbootimg)	mmcblk0p9	recovery partition
USERDATA	USERDATA	/data	ext4	mmcblk0p16	data partition
RADIO	RADIO	/firmware	vfat		modem firmware partition
EFS	EFS	/efs	ext4	mmcblk0p3	modem data partition
TOMBSTONES	TOMBSTONES	/tombstones	ext4		?

Mainlining¶

See https://wiki.postmarketos.org/wiki/Samsung_Galaxy_SIII_LTE_(samsung-i9305)#Mainline_Kernel, https://blog.forkwhiletrue.me/pages/midas-mainline/. The mainline kernel probably needs the equivalent of https://github.com/LineageOS/android_kernel_samsung_smdk4412/blob/b7ffe7f2aea2391737cdeac2a33217ee0ea4f2ba/arch/arm/mach-exynos/mdm_hsic_pm.c#L1003 for the modem to work.