how far away were you from the subject? I'm just trying to figure out if the flash is faulty or this is how it's supposed to be. I have to be extremely close to get any kind of lighting to bounce off the subject.
First picture I was a meter away (3.2 feet,I think) fully zoomed in,second I was a little closer but also zoomed in on my daughter.I use M mode when I'm using flash and use minimum power.Usually underexpose by around 2 stops.













