Camera is not working in third party apps( shows a black screen on apps like google pay, instagram etc) and even the QR code scan option ( from the control center) doesn’t work either on iOS 18.4.1 on iPhone 16 pro max. Only option is to restart the phone. But again after a day or two this issue repeats.
iPhone 16 Pro Max, iOS 18
You need to have Apple perform diagnostics on your iPhone. It can be done in person at an Apple Retail Store or at an Apple Authorized Service Provider. You can also contact Apple Support and request remote diagnostics.
If you’re in the US please call 1-800-MY-APPLE or outside the US, consult the support articles below.
Contact Apple for support and service - Apple Support
Genius Bar Reservation and Apple Support Options - Apple
Camera not working in third party apps iOS 18.4.1
