If you find you that getting a good GPS fix on your Samsung Galaxy SL i9003 is taking too long then check out XDA forum member KonfusedGeek‘s quick fix.
There are other guides around which require a bit of manual tweaking and may provide better results, however if you just want to try out a small settings tweak, then this is the guide that you might want to try first.
The XDA member states that this small guide will reduce the time taken to lock to satellites and has been tested inside a building with 8 floors!
You’ll need to turn off your GPS, Open LibTestMode and change some settings under Application Settings and SUPL/CP Settings. Finally, a reboot should apply the changes.
For further details and feedback from other members, check out the forum thread.___________________