OK, it really JB 4.1.2 after I flashed, but this firmware only for 512M model, I'm using 1Gb model, how can I flash for 1Gb module? could you help me to figure out?
Thanks
It is for the 1GB model you're looking in the Memory Area (it was the same in 4.04.), check in the RAM area and you'll see 1gb.
I've read that android dinamically understand the amount of RAM avaible.