If you would like read the step by step instruction of firmware downloading click here: How to Download Official Samsung Firmware.
Select Firmware
smart filter
| PDA Version | OS Version | Fast Download | ||
|---|---|---|---|---|
| GC100XXBMC4 | GC100OJVBMB1 |
Android / Jelly Bean / 4.1.2
|
26/03/2013 |
N/A 
|
| GC100XXBMA1 | GC100OJVBMA1 |
Android
|
N/A |
N/A
|
| GC100XXALK6 | GC100ZZZALK1 |
Android
|
N/A |
N/A
|
.