Why am I having a temporary issue with a server during the Denim update on Lumia 930?

When updating there was WiFi disruption and it didn't install the update properly so the maps, extras& info, ... don't work, the phone freezes from time to time. Please can someone help me house to reinstall denim update in order to put the phone back to good working condition. Thank you for any useful info! Best, Ted

Use the Lumia Software Recovery Tool found here: FAQ - How can I recover/reset/restore my phone software? - Microsoft - USA

It will flash the latest official to your phone. Make a backup first so you can restore during set up.

Thank you. The phone doesn't connect :/ attached is phone update messageAttachment 94845