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 | ||
|---|---|---|---|---|
| S6312XXANF1 | S6312OJVANF1 |
Android / Jelly Bean / 4.1.2
|
02/06/2014 |
AVAILABLE 
|
| S6312XXAMC1 | S6312OJVAMB2 |
Android
|
01/03/2013 |
N/A 
|
.