David Passell does not have an iPhone, but thinks this sounds important and potentially dire for iPhone owners. http://www.zdnet.com/article/error-53-bricking-repaired-apple-iphones/?tag=nl.e589&s_cid=e589&ttag=e589&ftag=TREc64629f
John Carter responded that this is not a problem for anyone who does not try to modify their iPhone.