It is not as easy, the iPhone have FIPS 140-2 crypto processor that stores the key, you can not copy that data, and you can not emulate it. Or force attack the secure crytpto processor... I think the aproach of copy the hard disk is not posible, take a look to Apple documentation. https://www.apple.com/business... I am not sure even if is posible to release a new iOs without the retry password and time limits, It shouldn't be possible if the design is well done as it seems.