Maybe you can use some tools to help you recover deleted photos from iPhone,Now in the market have a lot of similar tools, have a plenty of free, have a plenty of charge, to choose the appropriate tool can help you save unnecessary trouble,we can use some tools can help us to save a lot of time,like iPhone Photo Recovery ( http://www.recovery-transfer.com ) is a good tool, you can try it for free,only are for reference,that will be very slow,Good Luck!!!
http://www.recovery-transfer.com/about/Recover-lost-iPhone-Photo.html
Recover contacts from iPhone
http://www.recovery-transfer.com/about/recover-contacts-from-iphone.html