What if you can't use iTunes or iCloud to backup your iPhone, or you just don't want to use either of them? Then you need to use a third-party tool like Wondershare Dr.Fone for iOS - iPhone Data Recovery, which allows you to directly scan your iPhone and get the data out of your iPhone selectively. All you need to do is 3 steps:
Step 1. Connect your iPhone the computer, and run the program.
Step 2. Directly scan your iPhone by clicking "Start Scan" on the program's window.
Step 3. Preview and backup any data on your iPhone to the computer.