sorry mate not possible.
the 3.5 jack is designed for audio only.
you can use the hdmi,
you might want to look for a portable projector that has hdmi input; and return the the one you got.
check this site for more info
projectorreviews.com select the projector categories the tab along and below the logo
then select handheld, pico,pocket and portable for info
google around do some research as i have now.
so go ahead and check it all out