h1. Galaxy S II (GT-I9100)

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|/9. !galaxys2.png! | *Device* | Galaxy S II (GT-I9100) |
| *Manufacturer* | Samsung |
| *Release date* | May 2011 |
| *Codename* | @i9100@ |
| *Status* | Maintained |
| *Variants* | GSM: GT-I9100 |
| *Latest images* | [[ReplicantImages#Replicant-60-0003-images|Replicant 6.0 0003]] |

h2. Replicant status

[[ReplicantStatus#Replicant-60|Replicant 6.0 status]]

h2. Replicant installation

To install Replicant on the Galaxy S II (GT-I9100), see the [[RecoveryInstallationWithHeimdall]] and [[MinorVersionUpgrade]] wiki pages.

h2. Replicant usage

* [[GalaxyS2I9100CompassCalibration|Galaxy S 2 (I9100) compass calibration]]

h2. Replicant build

[[GalaxyS2I9100Build|Galaxy S 2 (I9100) build]]

h2. Replicant development

* [[GalaxyS2I9100Serial|Galaxy S 2 (I9100) serial]]
* If you don't have the device and need a quick test, see the [[People]] page for a list of people having a Galaxy SII (GT-I9100)
* If you already have substantial Replicant contributions, and you need a Galaxy SII (GT-I9100), we could ship one to you

h2. Freedom and privacy/security issues

Galaxy S 2 (I9100) freedom issues:
* Proprietary hardware
* Proprietary firmwares, some of which are [[GalaxyS2I9100LoadedFirmwares|firmwares loaded by the system]]
* Proprietary modem system
* Proprietary bootrom
* Proprietary and signed [[I9100Bootloader/|bootloader]]

[[GalaxyS2I9100PrivacySecurityIssues|Galaxy S 2 (I9100) Privacy/security issues]]

h2. Research

h3. Hardware table

|_. Component |_. Name |_. Source |_. Status |
| SoC | Samsung Exynos 4210 | Linux kernel | Linux kernel support |
| GPU | Mali 400 | https://secure.wikimedia.org/wikipedia/en/wiki/Exynos | Linux kernel support, proprietary userspace |
| Audio Codec | Yamaha MC1N2 | Linux kernel | Linux kernel support (ALSA), free userspace: Yamaha-MC1N2-Audio/Tinyalsa-Audio |
| Modem | XMM6260 | Linux kernel | Free userspace implementation: [[Samsung-RIL]]/[[libsamsung-ipc]] |
| Wi-Fi | BCM4330 | Linux kernel | Linux kernel support, proprietary loaded firmware |
| Bluetooth | BCM4330 | Linux kernel | Linux kernel support, proprietary loaded firmware |
| NFC | PN544 | Linux kernel | Linux kernel support |
| GPS | GSD4t | http://www.csr.com/news/pr/release/455/en | Proprietary userspace, no free implementation: [[GSD4t]] |
| Accelerometer | K3DH | Linux kernel | Linux kernel support, free userspace |
| Compass | AKM8975 | Kernel sources | Linux kernel support, free userspace |
| Light | Capella CM3663 | Linux kernel support, free userspace | |
| Proximity | Capella CM3663 | Linux kernel support, free userspace | |
| FM Radio | SI4709 | Linux kernel | Linux kernel support |
| Camera (back) | Fujitsu M5MO | Linux kernel support, free userspace | |
| Camera (front) | Samsung S5K5BAFX | Linux kernel support, free userspace | |
| Touchscreen | Atmel MXT224 | Linux kernel support | |
| Display | LD9040 | Linux kernel support | |
| Power Management IC (PMIC) | Maxim MAX8997 | Kernel sources | Linux kernel support |

h3. Software Configuration

* [[GalaxyS2I9100Pit]]: Galaxy SII (GT-I9100) PIT (a partition table)

h4. Partitions

WARNING some content may not be the same on your device

|_. PIT |_. Linux name |_. mount point |_. partition type |_. block device |_. Description |
| FACTORYFS | FACTORYFS | /system | ext4 | mmcblk0p9 | system partition |
| KERNEL | KERNEL | None | zImage | mmcblk0p5 | boot partition (zImage + initramfs included inside) |
| RECOVERY | RECOVERY | None | zImage | mmcblk0p6 | recovery partition (zImage + initramfs included inside) |
| EFS | EFS | /efs | ext4 | mmcblk0p1 | modem data partition |
| USERDATA | USERDATA | /data | ext4 | mmcblk0p12 | data partition |

h3. References

* "Galaxy S 2 (I9100) Service Manual and Schematics":http://www.cpkb.org/wiki/Samsung_GT-I9100_Galaxy_S_II_service_manual
* "Exynos 4210 User Manual":http://www.samsung.com/global/business/semiconductor/file/product/Pulbicmanual_Exynos_4_Dual_45nm_Ver00-2.pdf

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