iPhone 6s Plus

My friend’s phone is stuck on a screen with a white background with a grey apple logo in the middle, it periodically turns itself on and off but never shows anything but the screen mentioned before. I have tried updating it but it doesn’t have enough space. The phone is an Iphone 6s Plus

recently i upgraded to windows 10 and everything was fine, then a few days later the web camera stopped working i have tried updating the driver, uninstalling and installing it, restarting the computer, basically all the methods but nothing works. When i go in to device manager and go under...