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Samsung Galaxy S III/GT-I9300

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Samsung Galaxy S III
Samsung Galaxy S III.jpg
Model Number: See Page
Device Type: Phone
Manufacturer: Samsung Samsung-icon.png
Release Date: 05/2012
Operating System: Android Android-icon.jpg
Dimensions: 136.6 x 70.7 x 8.6 Millimeters
Weight: 133 g (4.7 oz)
Chipset: Samsung Exynos 4 Quad
Display: 4.8 in (120 mm), 1280×720 pixels, 306 ppi (pixel per inch), HD SUPER AMOLED RGBG-Matrix (Pentile)
Networks: 2G GSM/GPRS/EDGE 850, 900, 1800, 1900 MHz

3G UMTS/HSPA+ (21 Mbps down, 5.76 Mbps up) 850, 900, 1700, 1900, 2100 MHz

Wi-fi: 802.11 a/b/g/n, Wi-Fi Direct, Wi-Fi hotspot
USB: Not Known
Bluetooth: 4.0 BT Profiles
NFC: Yes
GPS: Yes
Video out: Not Known
Camera: 8.0 megapixels with LED Flash
Secondary Camera: 1.9 megapixels
RAM: Not Known
Internal Memory: 1 GB RAM / 16/32 GB (11.2GB/28.2GB available)
Memory Card: MicroSD upto 64GB (MicroSDHC or MicroSDXC compatible)
Battery: 2100 mAh with NFC capability
Additional Features: TouchWiz "Nature UX" UI


See Samsung Galaxy S III on Wikipedia

XDA-Developers Forums for the Phone

The six sub-forums on XDA Dev

Guides, How-Tos & Tutorials

Entering Recovery & Download Modes

How to get into Recovery Mode

  1. Unplug the USB cable.
  2. Shut down the phone.
  3. Hold down the 'HOME' + 'VOLUME UP' buttons and press the 'POWER' button for about 5 seconds to enter Recovery Mode.

How to get into Download Mode (eg: for Odin)

  1. Unplug the USB cable.
  2. Shut down the phone.
  3. Hold down the 'HOME' + 'VOLUME DOWN' buttons and press the 'POWER' button for about 2 seconds until a WARNING! Screen appears. Press the 'VOLUME UP' button to enter Download Mode.
  4. To get out of Download Mode, simply press and hold the power button until the phone restarts.

Walkthrough Guides

Video Guides


Link Description By
Toolkit Drivers, Backup, Root, CWM, BusyBox + MORE mskip
CF-Root SuperSU, CWM & CWMManager Chainfire
ClockWorkMod Recovery Chainfire
ClockworkMod Touch Recovery (with ext sdcard support) mskip
Cache Ripper Unpack cache.img in seconds using one tool! AdamLange
Triangle Away Chainfire
Simlock Unlocker AdamLange

Firmware, ROMs and Kernels

Stock Firmware

[Leaked JB Firmware]


Samsung-based ROMS







Custom Kernels

Stock Kernels



Official Cases
Discussion Thread on XDA for the Samsung Galaxy S3 Official Flip Cover
Video Review - XDA Discussion Link
TPU Cases
DBA Ultra
Hard Cases
Metal Bumper Discussion Thread on XDA
Rock case,Samsung Galaxy S3 Cases
Case-mate phantom case review on YouTube
Gel/Silicon Cases
Pleomax Pudding Jelly Case

Screen Protectors

Custom Mods