Question about Garmin Gpsmap 420

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Our Garmin GPSmap 420 freezes sometimes and show a track that can lead us, in principle, anywhere. In other words, it is difficult to trust the navigator. Is it possible to solve?

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Posted on Jan 02, 2017

issikiki
  • 563 Answers

SOURCE: download Garmin GPSMAP 4008 repair manual or

Hello.
You can find the garmin manual here.
Just type in your unit details.

Posted on Aug 11, 2010

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1 Answer

Compass will not caibrate


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Tip

How to Upgrade and Fix your Garmin GPSMAP 545s System Software


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Does your Garmin GPSMAP 545s freeze up?
Is the screen stuck, or do you loose satellite coverage?

I recommend upgrading the system software of your Garmin 545s. There may not be physical damage to your unit, and it may be completely revitalized by replacing the GPSMAP software with the latest version 5.30 (as of January 7, 2010).

  1. Click on "Download" and choose to save the file to your computer.
  2. Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
  3. Once the download is complete, go to the location where you saved the file.
  4. Double-click on the downloaded file. This will automatically extract the files to C:\Garmin and run a program to transfer the software update to an SD card.
  5. Load the SD card into your GPSMAP 545s and turn it on to replace the system software of your unit.
I hope that helps.

on Jan 31, 2010 | Garmin GPSMAP 545s GPS Receiver

1 Answer

Where do I find a 6 pin serial to usb adapter for the Garmin 421s? I can't find one anywhere on line. Does Garmin sell one? It's Saturday and Garmin's help center is closed. Their on line...


Hello,

The 6 pin DIN plug found on the GPSMAP 421s data/power cable (Garmin part number 010-10918-00) is used for the sonar input.

Data transfer from the GPSMAP 421s is easily transferred by memory card.
Information about data transfer on the 421s is at about 50 seconds into this video.
http://www.youtube.com/gpscity#p/search/6/8ddIgvCAUmI

Real time NMEA data can be transferred using Garmin part number 010-10918-00 wired to a DB-9 serial connector (Instructions are on the cable).

It then can be adapted to USB using a serial to USB adapter.
http://www.gpscity.com/gilsson-serial-to-usb-port-4in-adapter-for-pc-and-mac.html

Sep 17, 2011 | Garmin 421S GPS Receiver

1 Answer

My gps freezes when locked on third sattelite


Hi! these occurs mainly due to detail value(s) input and map redrawing directions apart from memory levels.

Dec 21, 2009 | Garmin GPSMAP 76 GPS Receiver

1 Answer

Tracking storage options GPSMAP 295


Every waypoint in the track has date/time, altitude and position. Second and subsequent waypoints will enable calculation and display of leg length, time, speed and direction between each par of points. The track can be displayed in 3D; in Google Earth for example. As far as I know there is no way to change the interval.

Jul 13, 2009 | Garmin GPSMAP 295 GPS Receiver

1 Answer

GPS operation freeze up


Upgrading the system software of your GPSMAP 545s will most likely fix your freezing up problem.

I hope that helps.

May 31, 2009 | Garmin GPSMAP 545s GPS Receiver

1 Answer

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Try turning off the Lock on Road option, on Map Setup page, General Tab.

Mar 03, 2009 | Garmin GPSMAP 60CSx GPS Receiver

1 Answer

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Have you enabled the 'WAAS' option?
This improves accuracy greatly

Jan 19, 2009 | Garmin GPSMAP 295 GPS Receiver

1 Answer

I have cganged settings on my GPSmap 60CS and it now display only waypoints and not complete tracks. Can anybody out there advise?


On the Map page press Menu. From the options shown choose Setup Map. Go to Track tab and make sure Saved Traks is not set to OFF.

Jan 12, 2009 | Garmin GPSMAP 60CSx GPS Receiver

3 Answers

Have problems with the loading of the map XPC415S. Australia East coast. Will this map work with this unit?


Any bluechart that has been preloaded on an SD card should work.  Did you purchase your chip with the data preloaded or did you download it yourself?  If you downloaded it yourself, try erasing the sd card, format it, then insert the blank card in the 420 and power it up. This somehow preps the chip for the data download.  Then download the bluechart onto the chip and try again.  There is some ambiguous wording in the download screen that makes it look like some kind of error, try the download anyway and most of the time it will work. After the download is complete it should list the bluechart software version on the screen along with some other software info.  If the operating system software is not v2.5 or higher, you may need to download a software update first.

Oct 25, 2007 | Garmin GPSMAP 420s GPS Receiver

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