Question about Garmin Forerunner 305 GPS Receiver

2 Answers

Information to computer

The watch charges through the computer attachment. However, the Garmin Training centre says it can't communicate with the watch. The watch indicates that the transfer of information has been made.

Posted by jbeuph on

  • 1 more comment 
  • jswrightson May 03, 2008

    I have exactly the same problem, but mine started to work for 2 runs now has stopped v v v annoying

  • kulpa May 04, 2008

    Have the same problem. Have attempted to reload drivers, update software, replaced the USB cable.

  • Anonymous May 05, 2008

    I have exactly the same problem.

    I've tried reinstalling the software, drivers, cable, a different computer but the error does not go away.

    As a stand alone unit, it works great, but, now I have no way to compare or store data.



2 Answers


As above, I had an issue where the watch wouldn't even start nor charge (batteries were flat). Next morning all was well but the unti would not communicate with the Training Centre. In trying to get the watch to work I had reloaded the old level Training Centre and this will not communicate with the new level software in the watch.
Reflash the watch, reinstall the drivers and install the new Training Centre (april 08 version) and all should be ok.

Posted on May 16, 2008


Carlos Vasquez

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    An expert who has achieved level 1.

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  • 3 Answers

I did have exactly the same problem.
I think what caused the unit to stop communicating with the computer was that somehow I switched to "multisport" mode.
I was cycling and somehow I switch to running.

The solution that worked for me was to download and install the "Webupdater" software from the Garmin site. This will update the firmware on your forerunner 305 (you need to be connected to the internet of course). After 5 to 7 minutes it will be done.

Then, download the latest Garmin "Training Center". This worked for me, I'm relieved now.

Posted on May 06, 2008


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Call 1-8O5-225-669O GPS/GARMIN Update-Install-Download-FixWe are 24 Hour Available Call Now For Help Customer Service

Garmin has moved everything to Garmin Connect. Depending on your device, Training Center may or may not be supported anymore. You can go to the link to read more on Garmin Connect. Also, Garmin now uses Garmin Express to sync and update devices. I'll attach the link.

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Back up your Garmin Training center (File , Export, History...Workouts... Courses.

Then try reinstalling software. My wifes PC has done this a few times. I think it is becasue she is not using the "safly remove hardware" icon in the task bar when disconecting.
Reinstalling the sofware has worked for us.

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Missing training data from my Garmin 305....

Unless you created a "back up file" with the Training Center software unfortunatly you will not be able to retrieve the data.

Regular back ups will insure you do not lose information in the future.

To back up your data in the Training Center go to "File" and "Back up" I believe the early version of the Training Center did not have the Back up feature so you would then need to use the "File" Export" option.

Dec 11, 2009 | Garmin Forerunner 305 GPS Receiver

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Training Centre switches itself off when I connect Garmin to PC

without any logical thinking behind, I decided to try to download the new version of the Training Centre.
After I did that, the Training Centre stopped quitting, but would not read the Garmin data. I checked the reason for this lack of communication and found out I had made a few changes to the my profile on the Training Centre and the Garmin - therefore - had different settings. Maybe this is what caused the problem in the first place. I told the Training Centre to use the device setting and the problem disappeared.

Jun 16, 2009 | Garmin Forerunner 305 GPS Receiver

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Garmin Forerunner 305. Problem receiving activities and courses

This turned out to be corrupt data on my machine. I opened the Garmin traing center, backed up all the courses then deleted them inside the Training centre. I then received from device and all was okay.

Jan 12, 2009 | Garmin Forerunner 305 GPS Receiver

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G'day, I have the Edge205 and cannot get to operate, fully charged battery, and will not recognise connection to computer, can you advise please as to how I can get started, thanks Ken

To fix this problem you will need to download the latest version of Training Centre from the Garmin website and also update your units software.
Update Training Centre:
  1. Close Training Centre if its open on your PC
  2. Visit
  3. Click Download
  4. Click Run when prompted
  5. Follow the onscreen instructions to update Training Centre on your PC
Update the software on the device:
  1. Visit:
  2. Follow the onscreen instructions to Download WebUpdater
  3. Click Run when prompted
  4. Follow the onscreen instructions to install WebUpdater
  5. WebUpdater will run automatically once installation is complete
  6. Follow the onscreen instructions to update your Edge
If the above steps do not correct the issue, then you can carry out a master reset on the unit as a last resort:
Note: The master reset will clear all user data including training history from the unit

  1. Turn off the Edge
  2. Hold down Mode + Power
  3. Select Yes when the unit asks if you want to erase all user data
  4. After resetting your Edge, leave it with a clear view of the sky for about 30 minutes without moving it to acquire a GPS fix

Oct 13, 2008 | Garmin GPS

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Garmin 305 not communicating with Training Center

I am new to the Garmin Edge 305, and started getting this problem yesterday. Indeed, yesterday it was the first time that I downloaded Courses.

I followed the Guest solution, deleted all new courses from my Garmin, and it now WORKs!!!!

Uploading my courses back again to the Garmin made the problem return back. I need some more work to identify the bad course.

May 05, 2008 | Garmin Forerunner 305 GPS Receiver

3 Answers

Forerunner 305

my htc phone programs i had on my computer was interupting my connection between watch and computer,so as soon as i uninstalled the htc software it started working again, hope that helps

Sep 15, 2007 | Garmin Forerunner 305 GPS Receiver

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