Nexus S (I902x)¶

• Table of contents
• Nexus S (I902x)
  • Replicant status
  • Replicant installation
  • Replicant usage
  • Replicant build
  • Replicant development
  • Freedom and privacy/security issues
  • Research
    • Hardware table

	Device	Nexus S (I902x)
	Manufacturer	Google/Samsung
	Release date	December 2010
	Codename	crespo
	Status	Maintained
	Maintainer(s)	Paul Kocialkowski
	Supported models	GSM: I9020, I9020A, I9023
	Latest images	Replicant 4.2 0003

Replicant status¶

Replicant status for the Nexus S (I902x): ReplicantStatus Replicant 4.2

Replicant installation¶

Replicant installation for the Nexus S (I902x): NexusSI902xInstallation

Replicant usage¶

• Nexus S (I902x) compass calibration: NexusSI902xCompassCalibration

Replicant build¶

Replicant build for the Nexus S (I902x): NexusSI902xBuild]]

Replicant development¶

• Nexus S (I902x) UART: NexusSI902xUART

Freedom and privacy/security issues¶

• Proprietary hardware
• Proprietary firmwares, some of which have to be loaded by the system: NexusSI902xLoadedFirmwares
• Proprietary modem system
• Proprietary bootrom
• Proprietary and signed bootloader: NexusSI902xBootloader

Privacy/security issues on the Nexus S (I902x): NexusSI902xPrivacySecurityIssues

Research¶

Hardware table¶

Component	Name	Source	Status
SoC	Samsung S5PC110/S5PV210	Linux kernel	Linux kernel support
GPU	PowerVR SGX540	https://secure.wikimedia.org/wikipedia/en/wiki/Exynos	Linux kernel support, proprietary userspace
Audio Codec	WM8994	Linux kernel	Linux kernel support (ALSA), free userspace
Modem	XMM6160	iFixit	Free userspace implementation: Samsung-RIL/libsamsung-ipc
Wi-Fi	BCM4329	Linux kernel	Linux kernel support, proprietary loaded firmware
Bluetooth	BCM4329	Linux kernel	Linux kernel support, proprietary loaded firmware
NFC	PN544	Linux kernel	Linux kernel support, free userspace
GPS	BCM4751	http://www.zdnet.com/photos/google-nexus-s-teardown/6189263?seq=59	Proprietary userspace, no free implementation: BCM4751
Accelerometer	KR3DM	Linux kernel	Linux kernel support, free userspace
Compass	AKM8973	Kernel sources	Linux kernel support, free userspace
Camera	S5KA3DFX/S5K4ECGX	Linux kernel	Linux kernel support, free userspace