Question about Garmin Edge 305 GPS Receiver

1 Answer

Can't upload data to computer

Everytime I try to upload my ride data to the computer, I get an error.  The GPS resets and the data is lost.  Also, when I power down I have trouble getting it to turn on again.  I have to press power and mode a few times and then power and reset to get it back on.

Bob Downs

Posted by KauaiBob on

  • 4 more comments 
  • Anonymous Jun 09, 2008

    It worked fine for months. Now every time I try to upload my ride data to the computer (motion based.com or Garmin training Center), I get an error.  The GPSresets and the data is lost.


  • Anonymous Jul 06, 2008

    I'm having the same trouble with my 1 year old 305. Did you ever get yours sorted?

  • jthomere Jul 20, 2008

    Same problem: cannot upload to motionbased, nor garmin training center (says "The data transfer failed"), make MacGPSPro crash.

  • Anonymous Jul 31, 2008

    Everytime I try to upload data, I get an error saying that the CPU could not find my device. I use the same cable on my Garmin ForeRunner 305 and it works fine.

  • jmshowman Aug 06, 2008

    Week old 305. Can not communicate with device. I can to device but from device to pc. Getting onto Garmin about it now

  • koimaki Oct 16, 2008

    Data transfer from 305 to TC success only sometimes, while data transfer to SportsTracks working well?

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1 Answer

Anonymous

Summary: Memory of device overloaded.

1 Backup your Training center data under File in program.

2 On the device (using mode button) goto History [enter] go to Running or Biking [enter] click down to delete [enter] select "Keep 1 month " [enter] select yes for confirmation [enter]

3 Reinsert device in USB cradle. Select "Receive from device" under File in program.

4 Download your latest information.

Worked for me.

Posted on Oct 20, 2008

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My Garmin will not power up. We have hooked it up to the usb cable to our computer and it still does not come on


try entering maintenance mode~~

In order to reset Garmin device or enter into maintenance mode, perform one of the following procedures:

Power off Garmin unit. Press on continuously the upper top left corner of screen and then power on the unit by pressing once on the Power button. You should be prompted to clear all user data, or asked if do you really want to start up in maintenance mode. Press "Yes" to reset (warning: all data will be erased and lost, so backup before proceeding) or enter maintenance mode.

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~~ http://www.mydigitallife.info/2009/06/09/how-to-reset-garmin-nuvi-gps-device-access-maintenance-mode/

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Used my garmin edge 305 today on the ride, it worked fine, powered off after the ride. Got home turned on to review my stats and then powered off and went to upload and wouldn't upload, so tried to turn it...


Edge 205 or 305 often crash, then impossible to power on again.

Here is the way to reset the Garmin edge :

Soft reset : hold mode and lap/reset buttons for 10 seconds
Hard reset : device should be powered down, hold start and mode buttons for 3 seconds then pulse press the lap/reset button.

After soft reset, you need to hold start button for up to 10 secs before it starts.

After hard reset, you will loose all your data, including profiles.

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I have a garmin gps 12--s/n 35854358. No auto-locate?


If you haven't used the gps for a while they can try to operate with the incorrect catalog or time. Unless these are both correct it gets lost. Usually you can correct this with a forced reset. There is also a update for this unit which also forces the update.
http://www8.garmin.com/products/gps12/download.html
The data cable sort of screws on and makes contact with 4 pins. This is the little round connector. It does both power and data. The cable is a wee bit pricey from Garmin but you can make them or just get one from ebay.
The reset usually wipes out any saved routes poi's etc so using the data cable will save all of those. To reset the 12 I believe you hold the lower right corner of the screen and then power it on to reset. Then you need to let it rub until it gets the new data which can take 5-50 minutes. Makes sure your batteries are good.
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