thanks for reply...
my repley is so late. very sorry to you...
if you are engineer, you understand my condition in this situation.
your advice is good and propriety
but, i can't find this product ScreenOS version new and signed new image key
juniper homepage not support this product
i'm very sad
so please advice to me, where is it can i find NS-208 ScreenOS more hige version or another version...