If I change my A7 processor will I lose any photo/video data?

My iPhone 5s was dropped in water on Saturday night and was in rice until Monday morning when I took it to the repairer and he said that my processor was damaged, I was wondering if when I replace the A7 processor I would lose any photo or video data that I have taken? I have a lot of photos and video on there of our son from when he was born, his first Christmas and lots of precious family photos as well as front row concert and football game pictures, we will never get any of those photos or videos again and my wife & I don't want to lose them because they are too precious to us. Thank you for your time, very much appreciated. Daniel & Stephanie