Year of birth doesn't update

[csharpdevelopers8358]

Hi everybody
I have an jtagged Xbox 360 with which I play Nike Kinect training and some fitness games.
In my profile in console and in Nike Kinect training there is some information about player such as year of birth or weight of player. But unfortunately when I change this information and save changes when I rerun the game I notice that thi information didnt changed.

I try change information in game and in profile section of dashboard (in section called Manage exercise info) but didn't succeed.

Any help. Best regards