Thanks, I did it. Everything vent like a harm and my Passport 2 is on the latest 2.3.5. ^{Good that I was not hasty with the update and  discovered from foundationdvcs that the problem was buried into version 2.3.2}.

May I ask ^{just of my curiosity} what could do in this case those users who have experienced frozen device could do in this case. Instruction  you have referred to says user should install developer key preliminary to avoid freeze but they will not be able to this if their devices are already stuck. Is there any workaround for such case?