Phone · Galaxy S
Released Nov 2011 · 3 model codes · firmware for 2 CSC regions
Firmware is specific to the model code. Find yours on the box or in Settings › About phone, then pick it below.
One UI and Android versions of the Galaxy S 2 HD, with the first release of each.
Android 4
First firmware build: I757MUGMC5 (SGH-I757M)