how do i unlock my iphone5 without wiping out my datas..anyone?

ive forgotten my passcode for my iphone 5..and after several attempts it is disabled.How can i unlock it without deleleting all my datas? ive tried to connect it with itunes but it doesnt wanna go thru...please guys i do need ur help ive got a lot of important files in my phone which i wasnt able to do a backup or sync them..