Hi @mrkjellman, welcome to our Community!
You should be able to manually upload your content from your iPhone to Dropbox.
You can open Dropbox on your phone. Open the Dropbox folder where you'd like to store your photos, or create a new one. Then tap the + (plus) icon at the bottom of your screen and choose Upload Photos.
You should be able to select all of them at once, if you kind of drag your finger through them, when selecting them.
If you have any questions, let me know!