My iPhone 5 camera flash is super low?

Phone hasn't been dropped or damaged it's like 2 months old. Not sure if there's a setting that lowers the flash? But all of a sudden its super low almost like there's no flash at all when I take a picture in a dark area… Any suggestions on fixing it? I know I still have warranty and I can take it back but then I'de have to put All my info back into a new phone lol so before having to do all that just wanted to see if there are any solutions to this?

1) Read the manual, you might find something useful in there.

2) I guess you don't realize this, but if you set up your iPhone properly on your computer via iTunes, it makes a full back up of all your phone each time you plug it in. If you do indeed need a new phone, make sure to do a back up just before you go to the Apple store, then you simply plug in the new phone and tell it to restore it from the back up. Now you have a brand new phone with All your stuff on it already.
If you back it up to the cloud, the store may even restore it for you right then and there.

I've had the same problem. When composing, try tapping the dark area of your scene, and get the yellow square there. Then the flash strength seems to adjust a bit to light up that dark area.