You need to turn on both mobile data AND WiFi ,you DON'T have to connect to any access point via WiFi but it does have to be turned on.
Further discussion in this thread, seems it works for some and not for others:/t5/Nseries-and-Symbian-Smartphones/Google-Maps-on
Works fine for me, useful tip turning wifi on !!
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Friends now this error is solved by GeekWake.
Go here and see how to work Google Maps in Symbian Belle.
Go to GeekWake = Google Maps for Symbian Belle
Google Map v4.1.1 doesn't work on my N8 (Bell) either, even with wifi on. It immediately return to main menu after tapping the app. It used to work fine on Anna even with wifi off.
I tried downloading and reinstalling Google Map v4.1.1 few times, even after factory reset, but still didn't work.
I then tried Google Map v3.2.1, and it works. Wifi still have to be on initially, but can be turned off after the app running.
17-05-2012 19:57 - edited 17-05-2012 20:05
For those people still can't get Google map to work on Belle after the Wifi trick, a hard reset finally fixed mine! (No, a soft reset did not fix mine, but you should try it first.) Yea, it's a pain in the butt having to reinstall some apps and reconfigure preferences. But my phone also runs smoother and the battery lasts longer, as least it seems. I still need to turn on Wifi for Google map to start.