weak gps and wifi signal
hello, i noticed that after the reapir man fixed my Iphone 4 "Power" button, the gps and wifi very weak !
the gps once in a while finds signal and than tells me again "no GPS signal".
I opened my Iphone 4 back cover and discovered that the GPS screw (http://guide-images.ifixit.net/igi/ZUVK6... - the one in green circle) is shaky and isn't screwed, he is just shaking.
does he suppose to be shaky? and is it the cause of the weak gps and wifi signal?
thanks and sorry for my english, Eitan.
EDIT: i unscrewed the screw from the red circle from the picture i added before and i saw that he is much bigger than the one that was in the green circle.
does the green screw should be bigger than the red one?
Is this a good question?