My Galaxy Note 4 (already updated to latest Android) tends to lose
connectivity to GPS (even though the connection to cellular/mobile
data network seems to be intact) while driving for 3 to 30 secs.
I'm using Waze. The disconnection can happen even on a bright
sunny day (ie don't have to be cloudy/rainy days) or in open
highway (ie not while going through tunnels).
The same SIM card was previously used on my Galaxy Note 2 for
for almost a whole year previously & I never had this issue.
Is this a known issue with Note 4 or the Telco ? Maybe one way I
can test this is to use the Note 4 as a hotspot (tethering) to an
iPhone & test to see if Waze/GPS disconnects intermittently:
map is still there but there's a red alert message that 'connection
to GPS is disconnected' at the top of the screen.
I only noted 2 changes:
1. I switch from Note 2 to Note 4 at around the time I disposed
the old Honda Airwave to Toyota Sienta hybrid: not sure if
there's something in Sienta that interferes
2. Note4 tends to get very heated up while Note2 is not that
hot while Waze is in use: I've since taken out the backcover
of the Note4 (& used scotch tapes to hold the battery & SIM
card in place) when in use so that the heat dissipates