How To Enter Passcode With Voiceover. Go to the Home Screen. Connect the external keyboard to your iPhone and double tap the spacebar to bring up the iPhone passcode screen.
Slide to Unlock at the bottom of the screen. Press spacebar once to bring up the lock screen. After touching the screen VoiceOver will say the selected number and you can double-click it to select it.
Tap the first digit of your passcode once.
How to Enter Passcode on iPad with VoiceOver. If your iPhone is Bluetooth enabled then turn on the keyboard and wait for it to connect to your iPhone. Tap the first digit of your passcode once. First you have to tap once to select the number then you double tap anywhere on the screen to select the spoken element.