Galaxy S2¶

• Table of contents
• Galaxy S2
  • Replicant status
  • Installation guide
  • Build guide
  • Technical infos
    • Hardware table

	Device	Galaxy S2
	Manufacturer	Samsung
	Codename	galaxys2
	Ships with root	No
	Root possible	Yes
	SIM Unlocked	Possible
	In production	Yes
	Replicant status	Supported, GSM flavour (I9100)
	Developers involved	PaulK
	Replicant version	Replicant 4.0
	Last image	Replicant 4.0 0003

Replicant status¶

Replicant status on Galaxy S2: ReplicantStatus

Known freedom issues:

• Proprietary and likely signed bootloader
• Modem, WiFi, Bluetooth and NFC firmwares are non-free
• Modem could access GPS

Installation guide¶

Installation guide for the Galaxy S2: HeimdallRecoveryInstallation

Build guide¶

Build guide for the Galaxy S2: GalaxyS2Build

Technical infos¶

• List of the Galaxy S2 firmwares: GalaxyS2Firmwares
• Galaxy S2 Compass calibration: GalaxyS2CompassCalibration

• Status of the Samsung-RIL modem implementation: Samsung-RIL
• Status of the GSD4t GPS chip implementation: GSD4t

Hardware table¶

Component	Name	Source	Protocol/implementation
SoC	Samsung Exynos 4210	Linux kernel	Linux kernel
GPU	Mali 400	https://secure.wikimedia.org/wikipedia/en/wiki/Exynos	Linux kernel and secret userspace
Audio Codec	Yamaha MC1N2	Linux kernel	Linux kernel ALSA driver, Yamaha-MC1N2-Audio implementation
Modem	XMM 6260	Linux kernel	Secret protocol: Samsung-IPC, implemented in libsamsung-ipc and samsung-ril
WiFi	BCM4330	Linux kernel	implemented in WiFi driver
Bluetooth	BCM4330	Linux kernel	implemented in Bluetooth driver
NFC	PN544	Linux kernel	Linux kernel
GPS	GSD4t	http://www.csr.com/news/pr/release/455/en	SiRF derivative
Accelerometer	K3DH	Linux kernel	Linux kernel, Samsung-Sensors
Compass	AKM8975	Kernel sources	Linux kernel, free implementation from AKM
Camera	M5MO/S5K5BAFX	Linux kernel	Linux kernel, FIMC, V4l2