The recent few new updates on iOS has reported with some compatibility issues on certain devices. Same goes to the iOS 9.3.2 which has been launched 3 days ago. As the Apple 9.7 inches iPad Pro users are eligible to receive this firmware update, some has reported brick-like situation after installing the latest update.
If you happen not to install iOS 9.3.2 on your iPad Pro yet, it is best advise not to do so. There are certain amount of 9.7 inches iPad Pro users have reported that their upgrade has not been successful all traced to the display of Error 56 during the upgrade. It also notifies user to connect to iTunes
Apple has officially responded to this issue and stated that Error 56 belongs to hardware fault.
If your device are bricked or been prompted with a display like above, here’s the only solution at this moment. Update to the latest iTunes on your PC/Mac and perform factory recovery on your iPad Pro *twice*. However, there is no 100% guarantee that this solution would work on all device.
Source : qooah