How Can I Save The Pictures On My iPhone 5 That Won't Turn On? Here Are Some Of The Solution.
Since you haven’t used it for a year, leave it plugged in for a few hours to make sure it’s charging and be sure to use a good cable. Also, try a hard reset.
If those didn’t work, unfortunately, there is no easy way to get pictures off it if you can’t turn it on. Someone with a really good computer skills might be able to get the chip and read it, but that also takes special equipment. Otherwise, I’m afraid the photos are lost.