NFC update firmware problem

[Amin]

I updated my phone to 2.254. After restarting NFC updating does not perform! I receive this message:
Please help! NFC not working anymore

[Bisti]

Have you tried to repeat the update? You can do this with Sony Update Service program: http://www.sonymobile.com/global-en/tools/update-service/

[Amin]

what is the difference to pc companion?