h1. Nexus S (I902x)

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|/8. !nexuss.png! | *Device* | Nexus S (I902x) |
| *Manufacturer* | Google/Samsung |
| *Release date* | December 2010 |
| *Codename* | @crespo@ |
| *Status* | Maintained |
| *Maintainer(s)* | [[People|Paul Kocialkowski]] |
| *Supported models* | GSM: I9020, I9020A, I9023 |
| *Latest images* | [[ReplicantImages#Replicant-42-0003-images|Replicant 4.2 0003]] |

h2. Replicant status

Replicant status for the Nexus S (I902x): [[ReplicantStatus#Replicant-42|ReplicantStatus]]

h2. Replicant installation

Replicant installation for the Nexus S (I902x): [[NexusSI902xInstallation]]

h3. Replicant usage

* Nexus S (I902x) compass calibration: [[NexusSI902xCompassCalibration]]

h2. Replicant build

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

h2. Replicant development

* Nexus S (I902x) UART: [[NexusSI902xUART]]

h2. 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]]

h2. Research

h3. Hardware table

|_. Component |_. Name |_. Source |_. Protocol/implementation |
| SoC | Samsung S5PC110/S5PV210 | Linux kernel | Linux kernel |
| GPU | PowerVR SGX540 | https://secure.wikimedia.org/wikipedia/en/wiki/Exynos | Linux kernel and secret userspace |
| Audio Codec | WM8994 | Linux kernel | Linux kernel ALSA driver |
| Modem | XMM6160 | "iFixit":http://www.ifixit.com/Teardown/Nexus-S-Teardown/4365/2#s20143 | Secret protocol: Samsung-IPC, implemented in libsamsung-ipc and samsung-ril |
| Wi-Fi | BCM4329 | Linux kernel | implemented in Wi-Fi driver |
| Bluetooth | BCM4329 | Linux kernel | implemented in Bluetooth driver |
| NFC | PN544 | Linux kernel | Linux kernel |
| GPS | BCM4751 | http://www.zdnet.com/photos/google-nexus-s-teardown/6189263?seq=59 | MEIF, Unknown |
| Accelerometer | KR3DM | Linux kernel | Linux kernel, Samsung-Sensors |
| Compass | AKM8973 | Kernel sources | Linux kernel, secret userspace |
| Camera | S5KA3DFX/S5K4ECGX | Linux kernel | Linux kernel, FIMC, V4l2 |