Question about Garmin Forerunner 305 GPS Receiver

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Garmin forerunner 305

Does not switch on or charge - unit is dead ?

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  • Anonymous Jun 22, 2008

    I have the same problem, shut it down after my workout, and never started again...........I reinstall the software the day before this happen, could this have anything to do??

  • Rambo85 Jun 23, 2008

    I shut mine off after exercising on Friday, 20 June and now it will not power up. I charged it until it states charging complete, and have tried the "soft reset" recommended on this web site, but it still does not power up.

  • suej8041 Jul 08, 2008

    I used my Forerunner 305 on July 5, took it off and downloaded information.  Used it on July 6, took it off and downloaded information.  Tried to use it July 8 and didn't get a beep at all when hitting power button.  Plugged into charging unit and it did not say "Battery Charging in Progress" like it usually does.  So I took my husband's 305 and put on the charging unit and it said "Battery Charging in Progress."  
    I also wonder if it is dead, but am keeping fingers crossed that it is the battery getting too wet.

  • storminsilve Jul 09, 2008

    July 9, tried to use my Forerunner 305. It won't turn on. When hooked to the recharging cradle, it will turn on. What is this? A Garmin virus? or just a bad battery?

  • mtb34 Sep 28, 2008

    I have the same problem. My 305 will not turn on and when I plug it in it doesn't show that it is charging. Sometimes when I hold the on/off button then it will turn on for a brief second and then turn off again. I tried the solution offered but that isn't working. Any help is much appreciated.

  • cbutlin Sep 28, 2008

    unit will not start, it worked one day and then I charges the unit, we to switch on before my run and it would not start.

  • Raouf9976 Oct 01, 2008

    Same problems as you. I just received a new forerunner 305, but I can't power it up when not in the cradle. I tried the reset things without success, even holding Power, mode and reset together.

  • Raouf9976 Oct 01, 2008

    Ok, I found the problem with my 305. I tried to power it up while pushing on the back of the watch , as if the contact between electronic circuits and battery was bad. It worked until I let go. I think this is battery contact problems. I will call garmin for replacement.

  • Anonymous Oct 20, 2008

    When I charge my garmin, it will charge fine (it says it is charging anyways) but when I take it out of the cradle, it won't turn on for a day or two. When it does turn on, the battery is dead.

  • Anonymous Mar 04, 2009

    when i try to charge the garmin forerunner 305 it displays "Battery charghing complete"

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My husband is the best!  Here's what he did and now it works:
Hold the on/off button and mode button, then hit the lap/reset button.
Hope this helps!

Posted on Jul 09, 2008

  • Lee Marshall Oct 29, 2011

    fantastic it worked first time thanks Lee

  • bailey_emma_
    bailey_emma_ May 07, 2012

    Just tried this and it worked - thank you

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Apply light pressure to the back of the watch, and then turn the power on! Worked for me.

Posted on Oct 31, 2008

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Will it start up whilst in the cradle, charging?

Mine did, but will not charge up off the cradle. Turned out to be a duff battery/connections due to water getting into the device!

F_P

Posted on Jul 08, 2008

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For how long do i hold the on/off, mode, and lap/reset?

Posted on Nov 01, 2008

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SOURCE: Garmin Forerunner 305 won't charge

These units seem to be suffering from a bad connection on the inside of the unit. My wife's did the same thing. There was a connection inside that wasn't making contact. First try cleaning the 4 brass connection tabs on the watch and check your charger to make sure the tabs are raised and not squished. Second try to reset the unit. Hit mode reset and power buttons all at the same time. Hold these for 3 seconds and then release. If these do not work here is what I did. There are no screws holding the unit together. I used a exacto blade to very carefully pry the unit apart along the side seam. It's not easy to do. Be very cautious and gentle. Work the thickness of the blade into the joint to gently wedge apart. You are not trying to remove material! Once apart you will see some fingers that make a connection between the upper and lower part of the unit. This is where the problem was with my wife's 305. I gently raised these tabs to make a better connection, It's been working ever since. I didn't try it before but try pressing very hard on the unit where it says Forerunner 305. The case is very hard so it might not work. But if it powers up when pushing you found your problem. Hope this helps. Here is a link I found on opening a 205 (Same process) http://ctorunner.googlepages.com/dismantleforerunner205 To put the unit back together use Automotive silicon/gasket maker. Use a tooth pick to put a VERY small amount of silicon around the entire seam. Put the two half's together and wrap tightly with electrical tape. Test the unit immediately to see if it powers on and off. If it does not open it back up and raise the small prongs that make the connection from the bottom half to the top half. If any silicon squishes out the sides wipe with water and a rag. Let the unit sit over night. In the morning remove the tape.

Posted on Nov 13, 2009

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My Forerunner 305 was working when I ran today.  I just went to download and the 305 is completely dead.  No display when pressing 'on', and none in charging deck. What do you recommend? Thank you.


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