Nevermind, I literally JUST figured it out. Finally facebook figured it out that iPhones can’t pix message officially, so when you email a photo to photos[at]facebook.com, they send you a confirmation email with a code in it, just go into the mobile app on your facebook and at the bottom right corner it says “confirmation code”, just enter that code you got in the email, and bingo. It’s about time, I have so many photos I’m uploading now, hah.