Default Os crach and tablet won't boot

Hi,
My galaxy tab was locked (I forget the password) I tried to root it to unset the password
So I followed a tutorial to root a Galaxy Tab3 (with Odin_v3.07 and T210_CWM.6.0.4.7.recovery)
Well I turn my table on download mode and I lunch the odin and I click start,
Well I have a galaxy tab and I think what I tried is for galaxy tab 3
So the odin is not showing any progress I close my tab
and when I tried to boot it I got this image( well I can post the image here but it's like a phone and a computer and between them exclamation mark)

any help please