I've had my iPhone 7 since it launched, and have been using Touch ID with great success. However, today I had to reboot my phone, and touch ID wont work, I have to enter a code. I have no idea what the pass code is! Its also prompting for 6 digits, my normal pass code that I've used in the past and on my iPad is only 4. I dont remember setting any code, I've just used Touch id since day 1. Is there a way to reset the passcode if it has been forgotten, or some sort of default passcode? I tried plugging it into my computer to see if iTunes would be of any help, but I have to unlock it before it will be recognized.