SOURCE: Garmin etrex hxc gps adding m,ore map detail.
You will need to use Mapsource to transfer the maps to your GPSr unit. This should install when you install the Topo Britain program.
You will then choose which map segments you want to transfer, and the program will do the rest.
SOURCE: Cannot install new Garmin eTrex Vista HCx to my PC
The driver file should be in a folder called USB_Drivers on the Trip & Waypoint Manager CD. The install process is confusing - it looks like it has to install twice as after the first time it looks for the file again - carry through with this the 2nd time and you should be fine. I have had to reinstall the driver several times over the last few years - also when using a different USB port. So now I keep the driver file handy on the hard drive to save getting the CD every time.
SOURCE: Garmin GPS III Pilot to PC communication problem
If it were doing this just on the Vista machine I would say it was Vista related but since you are getting it from an xp machine as well the problem is either cable or the gps unit. You don;t say if this just started happening or ? If you can try out the cable on something else to make sure so you can eliminate it. About the only thing you can do is to make sure the port settings in the pilot are set correctly. Generally the slower the better if you are having communication problems as this makes the signal timing not as critical. Try 9600 baud to start. Make sure that the data bits are also set roght. This is the 8n1 or 7n1 thing you see. I can;t think of what the default is on the garmin but as long as both pc and garmin have speed, bits, parity, and stop but set the same they should talk.
Try to download from the unit as well as upload.Unfortunetly you can only change the speed and protocal or reset the unit. You won't be able to fix it if is a hardware thing. If you are using a USB to Serial adapter then I would say that is your problem or could be. Cheaper ones just don't work often on higher port speeds. You might want to try the gps on a pc with a actual serial port if you are using one. If it works then you should try a different brand of adapter or really slow down the speeds.
This won;t solve it unless you luck out but it should let you know where the problem is.
Dave
SOURCE: Garmin eTrex Legend using serial connection to PC.
Re-installed the USB-to-serial driver, the DNRGarmin software, and the Garmin Communicator to resolve the problem.
SOURCE: Garmin eTrex Vista HCx searches for satellites but
I have the same problem. Satellite screen shows nothing except the rings. When I open the unit, one of the chip looks like broken; its label says K43 and V5.
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