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, International GSM flavor (GT-I9200)
	Developers involved	PaulK
	Replicant version	Replicant 4.0
	Last image	Replicant 4.0 0005

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: GalaxyS2Installation

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