If pressing the home button has no effect, guided access mode is on. To turn off guided access:
- Triple click the home button.
- Enter the passcode you set.
- Tap End in the top left, you should see the text Guided Access Ended.
Now guided access mode will be disabled. To restart SinePoint Pro:
- Double click the home button to get to the App manager.
- Swipe up on SinePoint Pro card to close it.
Now to start SinePoint Pro again with guided access enabled:
- Tap on SinePoint Pro from the App list.
- Wait for SinePoint Pro to load your site details.
- Triple click the home button, you should see Guided Access Started.