As you already know Apple have been patched exploit that used by iCloud DNS Bypass. There was many devices with owner information on lock screen. This devices can be unlocked until reboot using Application -> Crash method. Since it no longer works, here is alternative ways to crash Activation page.

Here is two methods that makes Activation page crashed.

This methods unlock devices that:

  • Have owner message on lockscreen.
  • Never restored via iTunes since it was locked.

Works for all iOS versions.