Screen curtain on
When I turn voice over on then voice over announces "screen curtain on" then IPhone screen turns totally black
How can I turn off screen curtain?
Tap three times with three fingers on the screen. Then screen curtain turns off.
If the zoom feature in accessibility settings is turned on, you need to do a three-finger quadruple-tap to toggle the screen curtain. If the zoom feature is disabled, then it's a three-finger triple-tap.
If you have a Bluetooth keyboard, you can also toggle the screen curtain by pressing Control-Option-Shift-S.