Look closely at the pins on the board and the connectors on the module. They are offset slightly. It will only go on one way with all the pins being used. Note the location of the antenna on the module itself in the picture below:
![[Image: Screen%20Case%204_zpsmaveyezq.jpg]](http://i87.photobucket.com/albums/k145/mkruger_2006/Screen%20Case%204_zpsmaveyezq.jpg)
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