I tried this hardware fix but i can't see any improvement on my SGS (I9000 bought JULY 2010). Pressure on the top of the ANTENNA has no effect on the values given by GPS test
And i also tried all the softwares fixes found here on XDA => none of them worked
For information : My GPS is sometimes able to lock satellites indoor...
Outdoor, i can see 8 or more satellites => BUT... when i move, the signal is immediately lost and it always take long minutes to lock again : that makes my GPS totally unusable (especially in a car).
On my first video (old) I am using the Nokia LW30 (if I remember well) which got a sirfstar3 chipset and got a large battery (replaceable) that seems to last forever ( I hardly charge it).
The video (on my signature) also shows how to use it...