Thank you for everybody!!
i used bmw recharger and it worked!!!!
but in the beginning, DSC warning was on then... in..10 to 15min.. it just disappeared automatically. date, time,milage informations are totally gone.
i drove it for 15 min and i'm still running the engine in front of my house.

everything's fine but last problem.
the button on the handle of trunk lid doesn't work. i have to push the trunk-open butten in front, or remote control key.
i don't know what is going on..... god.. another problem comes up...

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2008 X5 4.8i Black Sapphire/Black perforated int./Dark Bamboo wood trim, [w/ all factory options except rear DVD system]
+ aerodynamic kit/stainless pedals/illuminated door strip/3M Color-Stable tint/LED license plate light/Thule's 91726 snowboard carrier.
2006 X5 4.4i, Titanium Silver/Black int./Anthricite Maple(traded)