AIR³ is equipped with a performing GPS. However, you may experience some problems to get a good GPS signal in certain cases. Here are a few hints to discover why you would have faced such issue.
The first thing to check is that you have activated the localisation. Swipe down from top to bottom to get the main icons. Check the the localisation icon is activated
Second thing to check is your time zone. The system will try to find satellites based on the time zone. Go to settings/system/date and time and check the time zone set. The first time the unit tries to know where it is, it can take more time. This is called "Cold start". Cold start is strongly reduced if you are connected to the network with a SIM card. If you have no SIM, this is not a problem, but note that it can take more time to locate the first time. GPS antenna should not be covered. Check that nothing is altering the signal received by the GPS antenna. Here is an example of a metal sticker that reduces the GPS signal received by the antenna.
If you still face difficulties, open GPS fox. Turn the pages up to the page that shows satellites and the signal strength. Hold the unit at the end of your arm, at 1.5 m high. Wait for a couple of minuts and observe.