A couple issues:<p>* Decapping and feature extraction even from simpler devices is error prone; you can destroy the device in the process. You only get one bite at the apple; you can&#x27;t &quot;image&quot; the hardware and restore it later. Since the government is always targeting one specific phone, this is a real problem.<p>* There&#x27;s no one byte you can write to bypass all the security on an iPhone, because (barring some unknown remanence effect) the protections come from crypto keys that are derived from user input.<p>* The phone is already using a serious KDF to derive keys, so given a strong passphrase, even if you extract the hardware key that&#x27;s mixed in with passphrase, recovering the data protection key might still be difficult.