One of our iPhones has become completely inaccessible after a popup has appeared on the lock screen to install an internal build from bitrise.io
The message reads: ""app.sbitrise.io" would like to install "OurApp""
There are buttons to install or cancel. Neither works.
Tapping the screen anywhere else does nothing.
Trying to power down the device, the swipe action to turn off the phone is not accessible.
Holding the lock screen and volume up buttons for longer makes the iPhone emit an alarm sound.
The iPhone appears to be completely inaccessible.