HELP! How to Return to Stock using Mac OS X???

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http://forums.androidcentral.com – Hello, Longtime lurker with a problem here. I have been scouring the net looking for a way to return my S 4G to stock using a Mac (was/am running a custom 4.0.1 ROM from 2011). In the process of doing that I have encountered all the usual threads on XDA, here and the like and the problem I kept running into was the lack of still active links with stock image files, etc. that matched up to instructions. In attempting to download the files separately and hodgepodge everything together, I believe I bricked my phone. It is currently stuck on the bootloader screen and won't go back to the home s (HowTos)