Questions on Flashback One35

Hi! I'm currently on my fourth roll and I am very happy about this camera. I had some issues with the first roll development being stuck for a few hours after the 24, but after that everything is going pretty smoothly. I have a question: do you have any suggestions about how to use better the flash? I noticed that if I am too close to the object it may become completely white on the photo and even if I'm taking a selfie I have to be careful. Does this depend entirely on the skin being light or is it a flash very powerful?

Second question: I am not sure about the home network/device hotspot thing... If I switch on the smartphone hotspot the app keeps telling me there is an error and doesn't show me any connection available. Until know I have been able to unload my rolls only through home WiFi. But I'd like to understand how to do it with my phone hotspot in order to get the thing done outside my house too.

Thank you!