This will sound absurd, but I have had 100% success with the following "fix" for 3 months now: drop the unit on a table from a height of 10 to 12 inches and then power up. It acquires every time! I have reloaded firmware, reset, everything and this problem persists. I do not get satellites about 9 out of 10 times I power up. Then I drop it and try again and I always get them. I think it's a cracked circuit board? I waited 3 months before posting this to rule out coincidence. If this method is a coincidence, then it is an amazing one that repeats over and over again!
The problem: when I turned on my Garmin Edge 305, the "Acquiring Satellites" screen showed no satellites at all. It started doing this intermittently, but now it was happening all the time. Also, when this happened, the unit displayed incorrect date and time. I also noted that when I accessed the "About Edge" option from my unit ("Settings>System>General>About Edge"), the "GPS" field said "0.00".
The solution provided by Garmin Support: "It sounds like there might be some corruption in the satellites data of your device. To delete this information, while the unit is powered OFF press the Power and Down button for 15 seconds. Then set the device outside for a minimum of 30 minutes to acquire satellites and the satellite data."
It didn't work for me, but maybe it'll work for you. Anyway, today I turned on my Edge 305 before my training ride and, miraculously, it recognized and acquired satellites again, displayed the correct date and time and the "GPS" field said "3.00". Maybe it was just in a bad mood or something...
I have the same problem. Solutio ntaht always works, I hold all 5 keys onb the side of the Edge. My wife presses the <lap> and <start/stop> key. We count to 3 and then realease all keys at the same time. It works 2 out of 3 times, so if we repaet this for 3 for times it's always working again.
The stupid thing is that if I try to press and releas all they keys myself it's not working.
Also sometimes it works to turn the power on while the devide is wired.
All together it doesn't make sense, but if it works it works!
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As GPS units are used, data is gathered which
helps them acquire satellites quickly at the start of each use. If a device is
used daily it should be able to acquire satellites in a minute or less. Using a
GPS device while it is outdoors with a clear view of the entire sky is the
ideal condition for acquiring satellites. Please know that there can be several
different factors that may cause a GPS unit to not acquire satellites:
If your unit is trying
to acquire satellites for the first time, it may take longer than normal
to establish an initial position. If the unit is powered on and outdoors
with a clear view of the sky this should not take more than 3-5 minutes.
If your unit has not
been used for an extended period of time (more then a month), it may take
3-5 minutes to acquire satellites.
If your unit is indoors,
it may not acquire satellites. Even standing next to a window indoors will
block a majority of the sky which is needed for a device to locate and
lock onto a satellite signal.
If you have just
finished updating the software in your unit or you have performed a master
reset, your unit may take 3-5 minutes to acquire while outdoors as the
data that is used to locate satellites may have been erased.
If your unit has
traveled over 500 miles while turned off or not tracking your travel, it
may take 3-5 minutes to acquire even in ideal conditions.
If your vehicle has a
protective coating on its windshield or electronic devices which interfere
with the unit receiving signal, your unit may need an external antenna* in
order to acquire satellites.
If you suspect this to
be an issue, try taking the unit outside of the vehicle with a clear view
of the sky for 3-5 minutes so that the unit can acquire satellites. If
your unit loses satellites once moved back into your vehicle you will
most likely need an external antenna*.
If your unit is still having trouble acquiring
satellites, please ensure that it has the latest version of operating software
by using our WebUpdater program. Once
your unit is updated please allow the unit to acquire satellites outdoors in a
stationary position with a clear view of the sky.
Question: Why won't my unit acquire satellites?
There are a several different factors that can cause a GPS unit to not acquire satellites:
If your unit is indoors, it may not acquire satellites.
If your unit is trying to acquire satellites for the first time, it is normal for it to take a while to establish its initial position.
If you have just finished updating the software in your unit or you have performed a master reset, your unit may take longer than normal to acquire.
If your unit has traveled a long distance while turned off or not tracking your travel, it may take a longer period of time to acquire.
If your unit has not been used for an extended period of time, it may take a longer period of time to acquire.
If your vehicle has a protective coating on its windshield or electronic devices which interfere with the unit receiving signal, you may need an external antenna.
If your unit is not acquiring satellites, it is recommended that you place the unit in a stationary position where it has a clear view of the sky. In some cases it may be necessary to take the unit outside of your vehicle as certain vehicles inhibit the unit from acquiring satellites. As the unit receives signal from the satellites, it will begin to lock on to them individually until it has acquired enough information to establish your position.
If your unit is still having trouble acquiring satellites, please ensure that it has the latest version of operating software. You can do this using our WebUpdater program which can be found at the following link:
I had the same problem with my brand new nuvi 200w. I called Garmin support and they were able to help me. I live on Long Island and evidently when I first turned on the unit I had selected the "Atlantic" time zone rather than "Eastern." The support tech had me reboot the unit by turning it off, holding my thumb onto the lower right hand corner of the screen and turning the unit back on. It does prompt you that you will lose your previous settings. When I reset it and selected the proper time zone its worked like a charm.
I experienced the same problem about acquiring satellite signal even when it's a clear sunny day. After 30 mintues, it was still searching!
The unit appeared to have "stuck" in this acquiring mode. The following worked for me:
1) open the GPS antenna
2) press the bottom left screen while holding the power button to turn the unit on
3) enter maintenace mode
4) select diagnostics
5) clear error report, do NOT clear any user data
6) restart unit the usual way
My GPS 350 was able to acquire satellite signal in less than 1 minute after the above steps were taken.