Posted on May 21, 2011 | No CommentsORIGINALLY POSTED 26 JANUARY 2011 I spent hours looking for the tools needed for the 4.2.1 unlock. Instead of wasting your time clicking on stupid links and getting nowhere, HERE IT IS: Update your iDevice in iTunes to 4.2.1 Download Redsn0w for Mac or PC. Download IPSW 4.2.1 Run Redsn0w and select 4.2.1 IPSW Follow the instructions DONE. Was that so hard for someone to post on the internet? Damn.