Yesterday i noticed that my phone was acting weird. The camera wouldn't record video and photos we're taken in extremely low quality and very slowly. I decided to restart the phone to see if it would fix it, and then the phone got stuck on the Apple logo trying to boot. It spontaneosly tries to reboot every now and then. I've tried updating it by connecting it to iTunes on my PC and hard reseting (as in the reboot method) it. I'm getting desperate since I really need my phone for two factor authentification etc. I think I am going to try the factory reset in iTunes, but I really don't want to loose my pictures and stuff. Are there any other solutions to this problem, that don't involve loosing data, or is there a way for me to back up what's on the phone to my computer? The images are not backed up in iCloud, so I will loose them if i reset the phone completely. The phone is an iPhone 7 running iOS 11.2.6, and it has never been jailbroken and I've never had similar issues with it before.