If the camera flash is not turning on you may have to manually turn it on. There should be an icon that looks like a lightning bolt that turns the flash on and off.
If your device is not turning on make sure that the battery is fully charged. If not a red light should signal that the power is low. Charge your battery and then try to turn it on again.
If the camera flash is not turning on you may have to manually turn it on. There should be an icon that looks like a lightning bolt that turns the flash on and off.