This does not just shut down the application but reboots the whole system.
Iphone 7 plus front camera not working solution.
You can check if there is an ios update go to settings general software updates.
If you are sure that your mobile phone had never been dropped or broken you should consider whether it is caused by system problem.
If there is a new software update available iphone will download the update first.
The software bug can be the reason why your iphone rear camera is not working.
Press and hold the volume down and home button together until the screen displays the apple logo.
Press and hold the power button and the volume down button at the same time until the phone turns off.
One is software problem and the other is hardware problem.
How to fix iphone 7 7 plus camera not working black screen fix 1.
Press and hold the home button and power button volume down button and power button for iphone 7 7 plus until the apple logo appears.
Now camera should function normally.
To get rid this problem updating the ios seems to be a great idea.