Shut your Android Galaxy S down (Power off) or remove Battery.
Now press Volume up, Home and Power together.
If the Samsung Symbol is comming up leave the Home Button.
Then there is a boot Menu
Volume Up and Down to Navigate , Home to select the choosen option.
Call me a chicken, but I don't want to take the route with the possibility of a brick. Don't have the tools anyways. I see what ebay say. Guessing there isn't any other way?
I get full reception and receive calls fine