I have a Samsung Galaxy S3 mini and did two tests, both with cold GPS start (without A-GPS data):
- starting GPS receiver 11 hours after last fix - got new fix almost instantly (30 seconds)
- starting GPS receiver 23 hours after last fix - could not fix in 10-15 minutes (did not count exactly)
I have to mention the GPS was turned on in Android system between last fix and test and phone was on wifi. My question is - how long do GPS almanac data last for a quite quick (say under 3 minutes) cold start?