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
    • References

	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 4.2 status

Replicant installation¶

Nexus S (I902x) installation

Replicant usage¶

• Nexus S (I902x) compass calibration

Replicant build¶

Nexus S (I902x) build

Replicant development¶

• Nexus S (I902x) UART

Freedom and privacy/security issues¶

Nexus S (I902x) freedom issues:

• Proprietary hardware
• Proprietary firmwares, some of which are firmwares loaded by the system
• Proprietary modem system
• Proprietary bootrom
• Proprietary and signed bootloader

Nexus S (I902x) Privacy/security issues

Research¶

Hardware table¶

Component	Name	Status	Documentation
SoC	Samsung S5PC110/S5PV210	Linux kernel support
GPU	Imagination Technologies PowerVR SGX540	Linux kernel support, proprietary userspace
Audio Codec	Wolfson WM8994	Linux kernel support (ALSA), free userspace	WM8994_Rev3.0.pdf
Modem	Intel XMM6160	Free userspace implementation: Samsung-RIL/libsamsung-ipc	mobile-xmm-6160-brief.pdf
Wi-Fi	Broadcom BCM4329	Linux kernel support, proprietary loaded firmware
Bluetooth	Broadcom BCM4329	Linux kernel support, proprietary loaded firmware
NFC	NXP PN544	Linux kernel support, free userspace, proprietary loaded firmware	75016890.pdf
GPS	Broadcom BCM4751	Proprietary userspace, proprietary loaded firmware, no free implementation: BCM4751	BCM4751
Accelerometer	STMicroelectronics KR3DM	Linux kernel support, free userspace
Compass	Asahi Kasei AKM8973	Linux kernel support, free userspace	AK8973.pdf
Gyroscope	STMicroelectronics K3G	Linux kernel support, free userspace
Light	Sharp GP2A	Linux kernel support, free userspace
Proximity	Sharp GP2A	Linux kernel support, free userspace
Camera (back)	Samsung S5K4ECGX	Linux kernel support, free userspace
Camera (front)	Samsung S5KA3DFX	Linux kernel support, free userspace
Touchscreen	Atmel MXT224	Linux kernel support
Display	NT35580/TL2796	Linux kernel support

References¶

• Nexus S (I902x) Service Manual and Schematics: http://www.cpkb.org/wiki/Samsung_GT-i9023_Google_Nexus_S_service_manual
• S5PC110 User Manual: http://dl.project-voodoo.org/documentation/S5PC110_EVT1_UM10.pdf

These documents are the propriety of Samsung Electronics and are not hosted by the Replicant project.