If you read this article, you must already have read the previous one: Part 1
Welcome to this Article about How to Downgrade your HTC Desire HD from Android 2.3.5 with software 3.12.405.1 & + to a previous GB or Froyo version! (Part 2)
PLEASE READ it:
I can't be held responsible if something wrong happen to your phone! YOU are responsible for any inconvenience!
I have recorded a video and you must watch it completely before starting.
Moreover read each word of this article & linked article to be secured! Don't jump lines!!!
Read it one or two times before doing anything!
I will try to give you all links to do that! But I can forget some, so ask on the comment part behind!