Hello,
I've bought my Surface Pro 7 i3 in November and have the issue since the beginning.
Camera eventually stops working. Mainly when I stand by and wake the computer again, but sometimes diring the regular use.
It seems relaged to Windows Hello.
Already tried all the suggestions here including wiping everything with USB Recovery, but issue is still here.
I think that I can't replace the device because I live in Brazil and it was bought in US and I have the screen cracked (with no effects for regular use)
Any ideas? I can't even manage to turn Hello off. There is no such option. Camera always turn on even if I configure not to use Hello.