Chosen Solution
I have replaced the screen and front camera unit with new one I can use the front camera to click selfies but can’t use it with apps like WhatsApp or FaceTime
Have you tried a hard reset or configurate your phone as new iphone a put back apps one by one?
I have the same issue! Apple killed the front camera since iOS 13.4.1 and today there is no option to install iOS 13.3.1. 400 people have the same issue: https://discussions.apple.com/thread/251… On new iOS like 13.5 and 13.5.5beta camera don’t working without stuck Camera app. Fu*k Apple!