The latest brief Apple made against the FBI regarding the San Bernardino case gave Apple an advantage over FBI. This latest brief included Apple bombarding FBI with misquotations and misinterpretations the FBI had made of a number of legal cases and statutes they had used in their brief against Apple. According to many reputed people involved with this case, this latest brief Apple made seemed nothing but a reminder to FBI and a few comments on the level of the legal party fighting the case in favour of FBI.
According to the brief put forward by Apple, the cases which FBI had used as arguments to support their use of the All Writs Act against Apple, actually had nothing to do with the Act. Moreover, these cases had no link with encryption or any other aspects which might make it useful information regarding the case in hand. Apple, on the other hand, further went on to show the number of errors the government had made while providing their forensic reports to the court. A lot of the errors made by the FBI forensic agents were technical, providing Apple with the advantage of showing off against FBI methods.
One of the blunders the FBI investigating agents made was providing with information and statements which showed that the actual suspect, Syed Farook, the one whose iPhone has to be opened, had actually disabled the iCloud backup system the iPhone had only for some selected apps. If this information is correct, FBI actually did have access to the iPhone in question and actual does not need any help from Apple to break open the iPhone. On the other hand, the matter stated by the special investigator of the FBI is something that is impossible, as stated by Apple manager, Erik Neuenschwander.