Before I was getting the AGPS lock with supl.google.com within 30 seconds (even indoors, as long as I'm on GSM) - but as of recent it would have to fall back to standard GPS lock (or never getting a lock if indoors). 30 second is longer than the little satellite dish blinking 8 times, so if it blinks longer than 10 times, likely AGPS lock wasn't successful.