So the hack got your phone stuck at the Apple Logo? I don't think that's the case but to get out of the Apple Logo follow this:
Power down your iPad Completely (Hold Home + power button for 10 seconds until it shuts down). Then while the phone is completely off, hold the Volume UP button (+) and press the power button to turn on your iPad while still holding the volume up button. Hold the Volume up button until it boots into SpringBoard but let go of the power button as soon as the Apple logo appears.
This boots your iPad into Safe Mode where all Cydia Substrate tweaks are disabled. Uninstall the latest Cydia Package you installed and reboot your phone.