Camera launches fine but sometimes shutoffs randomly. Enough space on sd card so not issue. And stupidly can't never use flash because I have to wait for device to cool down. Galaxy S4 m919 tmobile. So I installed open camera. Works fine. But when I switch to sd card for saving files in settings it says cannot save video. Can record a video. I click record and error right away. When I switch to internal phone its ok but as soon as I switch to sd card it can not save. But I have little space on internal. Any other video camera apps that save to external sd card?