Failure to acquire satellites in previously known good reception area...
I have had this unit for 2 years now and it has been working flawlessly until the battery went dead. I replaced the battery using a suggestion found on this site with a 3.7 volt Lion 2600mah unit and that problem is solved. Now I get bad satellite reception. I have double checked the installation of the gps module with the can facing down and the gps antenna facing up. I did both the under the bezel reset and the master reset holding down the right corner while turning on the unit and completed both successfully. The unit does get a signal intermittently and I lose signal quite often and it asks me if I am indoors, etc. Do the gps modules go bad? This went from a fast starting up and locking in unit to a piece of crap that seldom receives the satellites. Any suggestions????
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I have the same exact problem. Satellite detection outside of vehicle before starting out was full strength, as soon as you get into vehicle strength drops off to practically nothing. Now start driving and it continually loses satellite reception even on the open road with no hills and a clear day. It was mounted as far into the front windshield as I could get it and still crappy reception. Very disappointing as a cheaper Tom Tom my sister has works flawlessly. Also my daughters HTC desire Z cell phone GPS works flawlessly even from the back seats in the van. Maybe 1450LMT is just junk, and I should look for a refund.
Let's assume the unit is in good conditions. When you travel for more than 500 Kms the unit need more time to acquire the satellites, so the solution is to keep the unit on in a uncovered area for about 15 minutes.
I have a 3 year old Sportster 2 replay unit that worked perfect until 1 month ago. I posted my problem on this website a day before you did with this same problem. I googled to no end and even spoke to Sirius who wasn't willing to replace my unit at no charge since it was out of warranty. I found an unusual solution on the internet that worked for me. I place my receiver in the freezer for at least 20 minutes (this was recommended by a guy somewhere on the internet with the same problem). I have actually left it in freezer overnight too. This has solved my problem. It is the craziest thing but I thought I would try it before I resorted to replacing all my accessories and receiver since Sirius was less than cooperative with the issue. Anyway, hope this helps.
Make sure you are not moving and that you are on an open field with minimal aerial hindrances. It takes time for the GPS unit to acquire satellite signal and makes it difficult to acquire when you are moving so make sure you stop at an open are till it syncs with at least 3 satellites.
I have been experiencing the same problem many have been
having with the Nuvi 6xx and 3xx series giving an error message “Lost satellite
My problem started mid April 2008 and got progressively
worse. I would use my GPS on weekends and it would work perfectly for the first
10 – 30 minutes and then would loose satellite reception, rendering it useless.
I bought my Nuvi 660 when it first came out in October 2006
for just under $700 and is now out of the 1 year warrantee.
I called Garmin Technical Support and we checked my Software
version (4.40) and more importantly my GPS SW version (3.00). According to the
tech I had on the phone, the GPS SW version was more important then the Software
version. It was in fact already updated to 3.00, I did master reset, after
master reset, but regardless, nothing helped.
I contemplated what I should do.
Return mine and get a refurbished unit from Garmin for $225
with only a 90 day warrantee?
Buy a new Nuvi 660 for around $300
Buy a new Nuvi 2xx series with fewer features for $200 to
Buy a Megellian GPS?
I read through this forum and came across one person that
was told by Garmin “that they are aware of an issue with some Nuvis involving
the failure of a diode in the unit that senses whether or not an external
antenna is connected.” Apparently this diode failure is caused from the high
heat these units experience from being left in a hot car for long periods of
time. This would explain why mine would work in the beginning and then die.
So my thinking was, if the diode “thinks” there is an
external antenna attached when it isn’t, what would happen if I “did” connect
an external antenna?
Garmin recommends the Garmin GA 25MCX low profile remote GPS
antenna for the Nuvi 660 and costs $31.49 (not sure about additional costs for tax
So I purchased the NEW antenna from a seller on eBay for
$25.90 total and IT WORK FLAWLESSLY.
Just to make sure it really was the new external antenna
that was working and not the unit coming back to life, I started my 3 hour
journey with the external antenna NOT connected. As usual it lost satellite
reception in about 15 minutes. I plugged in the GA 25MCX and it immediately connected
to the satellites and never lost them.
I repeated the same process coming home and once again, I connecting
the external antenna after the unit reported loosing satellite reception, and
it worked perfectly.
Conclusion: if your unit is experiencing loosing satellite
reception, and is under warrantee, return it ASAP. If it’s out of warrantee,
get an external antenna. There are other manufactures of external antennas and
all should work as long as it has an MCX connector.
Side Note: This external antenna also worked perfectly on a
friend’s Nuvi 350 with the same problem.
I wanted to share this with everyone because I’ve been
racking my brain for months over this. I hope this helps.
Question: Why won't my StreetPilot i-series device acquire satellites?
Same happened to me - try -->
If your StreetPilot i-series unit is having a hard time acquiring satellites we would recommend ensuring that it currently has the most recent version of unit software and then performing a master reset. In order to update your unit to the current version of software you will need to use the Garmin WebUpdater. Here is a link to the page on our website that has the WebUpdater program and instructions on how to use it: http://www8.garmin.com/products/webupdater/howtoinstall.jsp
Once your unit has the most up-to-date software, you may need to perform a master reset. To do this follow the steps below:
Start with the device turned off.
Press and hold the arrow button, wheel, and power button simultaneously.
Continue holding these buttons until you see the message, “Do you really want to erase all user data?”
Once this message appears, release all three buttons.
Note: A master reset will restore your unit to the factory defaults and will erase all of your favorites and recent selections.
Once you have completed these steps, please place your unit outside in an area where it will have a clear view of the sky. The unit may need 15-20 minutes to initially acquire satellites. Once your unit acquire satellites you may continue normal operation.
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Last modified on: 02/12/2008
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.