Question about Garmin Forerunner 305 GPS Receiver

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Garmin 305 While out running today my two year old Garmin 305 shut off three times, not a lost signal, but just shut off. When I reset it, it came back on, displaying the time and mileage at the time it shut off, and didn't go through the usual "locating satellites" mode when it is initially powered up. The battery showed a full charge. What's the problem with it?

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  • Grumman62L Jul 11, 2008

    Mine also shuts off unexpectedly. When I opened it, the first and third contacts on the main board side were seriously corroded, and were not making contact. I suppose that can only be repaired at Garmin?

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I think that you have got a loose connection on the battery. I had the same problem, took the top off and had a poor connection on one of the battery terminals.

Any jolt would cause it to shut down.

Should be a simple fix if you don't mind going inside!

Posted on Jul 08, 2008

  • michael_t281
    michael_t281 Sep 19, 2012

    I followed these instructions, took it apart, now how do you get it back together? It seems like it was glued?

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1 Answer

My Garmin 305 shuts off when I pause during a run. If I stop mid-run and pause my Garmin THEN hit start to continue it shuts off instantly. Is this fixable?


Hello,

Try resetting the unit by pressing the "Mode"(reset/lap) and "Power" buttons at the same time.
Also, be sure that the unit has the latest update.
Reloading the latest update will resolve most issues.
download the latest version of WebUpdater software

Sep 19, 2011 | Garmin Forerunner 305 GPS Receiver

1 Answer

My garmin 305 (for running) will not shut off..soft reset just turns it back on ..the other buttons are frozen


Try hard reset, if not working, your device probably needs to go to support
Hard reset : device must be off (short press on mode plus lap/reset)
then hold mode and start buttons for 10 seconds, then pulse on lap/reset button
You'll loose all data, and go back to factory settings.

Before trying such solution you may try reinstalling last software from PC and USB cable

Aug 25, 2010 | Garmin Edge 305 GPS Receiver

1 Answer

Hi i have a garmin 265 only 4 weeks old. i have lost all side roads and the navigation is well out. says im on the road next to me. i keep loosing gps signal also. any solutions??????????


I can help you reset and fix your Garmin Nuvi 265W.

Losing gps signal and poor tracking are indications that the firmware / system software inside your GPS need updating.

There are three steps to take to get your Nuvi 265W running like new:

  1. Back up your Favorites.
  2. Perform a Hard Reset.
  3. Download and then run Garmin WebUpdater to replace its firmware / system software.

I hope that helps.
_____________________________
Nuvi 265W Manuals here.

Mar 21, 2010 | Garmin Nuvi 265W GPS Receiver

1 Answer

Edge 205 turning off through runs


There is a generic battery contact problem in the body of the gps, same in 305...this link will show you how to remedy it..MTBGurublog i have done it with my 305 and now do not have the shutdown anymore.... But, before you perform surgery try a full reboot... turn unit off then press mode and power together... unit will ask if you want to delete data..select yes and then manually insert all data again

Aug 06, 2009 | Garmin Edge 305 GPS Receiver

1 Answer

My Garmin 305 has stopped working. It is 1 1/2


If it won't start, try connecting it to your computer and see if you can get a firmware update to turn it on. Otherwise I would send it into garmin since there aren't replaceable parts for consumers.


Benjamin

Jul 17, 2009 | Garmin Forerunner 305 GPS Receiver

1 Answer

Garmin 305 is off and wont come back on.


You have to soft reset it first, and if not solving, then try hard reset.

Soft reset : hold lap/reset with mode key for some seconds
Hard reset : hols start and mode, then pulse on lap/reset.

after soft reset hold on/off for up to ten seconds before it starts.
after hard reset all data are lost

Mar 15, 2009 | Garmin Edge 305 GPS Receiver

2 Answers

My Garmin forerunner 305 will not turn on.


I have had the same problem. To fix it, I simultaneously hold down the "mode" and "reset" buttons for about 10 seconds. After releasing the buttons I power it up as normal. This has worked both times it has happened, and I got this fix from the Garmin website. My mileage totals are still in the history.

Dec 14, 2008 | Garmin Forerunner 305 GPS Receiver

1 Answer

Won't turn on...hear the beep, and screen works.


Exact same problem for me on the exact same day (2-sep) as well - freaky! Unit was out of battery and I charged it but that was the last time I managed to get it working - charging it now to see if it makes any diff. Actually with mine I hear the beep and the initial splash screen shows for about 1 sec and then that's it - it seems to go off again. I think it's something to do with the battery as it seems to work when connected to the charger - not a whole lot of good to me!

Aug 28, 2008 | Garmin Forerunner 305 GPS Receiver

1 Answer

Garmin 305


When the memory in the watch is full detail (ie mapping points) of the earliest runs are deleted but the aggregate data (eg total distance/time etc) is retained. If you want to save the mapping points you need to download it to a PC fairly soon after doing the run (depending of course on how much you use the 305). Although you can use the Training Centre software supplied with the 305 I prefer sporttracks which is a third party donate-ware application which many users find to be much better than TC.

Paul Moore

Mar 11, 2008 | Garmin Forerunner 305 GPS Receiver

4 Answers

Garmin Forerunner 305 cannot locate satellites


Hey, I install Garmin GPS Chipset Type G and now it seems work well.

Mar 01, 2008 | Garmin Forerunner 305 GPS Receiver

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