Nexus S¶

• Table of contents
• Nexus S
  • Replicant status
  • Installation guide
  • Build guide
  • Technical infos
    • Hardware table

	Device	Nexus S
	Manufacturer	Google/Samsung
	Codename	crespo
	Ships with root	No
	Root possible	Yes, bootloader is easy to unlock
	SIM Unlocked	Possible
	In production	Yes
	Replicant status	Supported, GSM flavour
	Developers involved	PaulK
	Replicant version	Replicant 2.3
	Last image	Replicant 2.3 0005

Replicant status¶

Replicant status on Nexus S: ReplicantStatus

Known freedom issues:

• Proprietary bootloader
• Modem firmware is non-free and there is no free alternative
• Modem could spy on the main CPU, the issue is beeing investigated in the SamsungModemIssues page

Installation guide¶

Installation guide for the Nexus S: FastbootInstallation

Build guide¶

Build guide for the Nexus S: NexusSBuild

Technical infos¶

• List of the proprietary libraries, binaries and firmwares shipped on the Nexus S and the status of their replacement: NexusSProprietary
• For a technical overview of Nexus S and a rationale explaining what makes it a better freedom-compliant device, see S5PC110TechnicalOverview
• For Documentation on the preliminary work for freeing its bootloader: S5PC110Bootloader
• Status of the free software that talks to the Samsung modems : SamsungModems
• Status of the work on the Nexus S GPS chip: Broadcom4751GPS

Hardware table¶

Component	Name	Source	Known protocol	Documentation
SoC	Samsung S5PC110	Kernel sources	N/A	?
GPU	PowerVR SGX540	https://secure.wikimedia.org/wikipedia/en/wiki/Exynos	Unknown	?
CODEC	WM8994	Kernel sources	implemented in ALSA driver	?
Modem	X-Gold 616	iFixit	Samsung IPC protocol, secret	?
WiFi	BCM4329	Kernel sources	implemented in WiFi driver	?
Bluetooth	BCM4329	Kernel sources	implemented in Bluetooth driver	?
GPS	BCM4751	http://www.zdnet.com/photos/google-nexus-s-teardown/6189263?seq=59	MEIF, Unknown	?
Accelerometer	KR3DM	Kernel sources	data out of the driver is usable	?
Compass	AKM8973	Kernel sources	Unknown	?
Camera	?	?	implemented in V4L2 driver	?