Question about Garmin Edge 305 GPS Receiver

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Garmin edge 305 screen not on. went over some very rough roads and lost the screen. can hear beeps when i push some buttons but no screen. tried the soft and hard resets described by some w/o success.

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  • 81 Answers

Probably a bad contact inside then.

Be careful however to update the device and hard reset it once again before trying opening it.

If device under warranty please send back to Garmin, if you open oit warranty will end automatically.

If none of this is possible then try trick posted at following site :

Posted on Sep 25, 2010


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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.

Jan 30, 2011 | Garmin Edge 305 GPS Receiver

1 Answer

Garmin Edge 305 completely dead, any ideas why? It worked yesterday.

I found that switching the device on and/or off while connected to the computer can leave the screen blank, and won't give any sign of life when the ON/OFF button is pressed. In reality the device is on and the batteries will drain. Try a RESET in that case by pressing ON/OFF and MODE buttons, and briefly pressing the LAP button.

Jul 22, 2010 | Garmin Edge 305 GPS Receiver

1 Answer

The device is blocked

Hi Have had this happen to me also, try pressing the mode and reset at same time also try lightly tapping frame of garmin on desk (easy though). if this still fails put it on your bike and go for spin??? hope first suggestion works as it did fr me

Mar 23, 2010 | Garmin Edge 305 GPS Receiver

1 Answer

I have an edge 305 and use it mountain biking. O rough trails it shuts down. I think it's a loose conection inside the unit. When I stop it will turn right back on.

It is a connection problem inside the device. If it is under warranty you should send back to garmin, otherwise you can apply trick as described at following site :

Oct 20, 2009 | Garmin Edge 305 Bundle Includes Hr And...

1 Answer

I charged my Garmin 305 and the screen read fully charged. I went to turn it on and there is no power. Now I can't even charge or download anything. It is fully dead.

Attach your unit to your computer and go to, download webupdater and then go to my dashboard on garmin and follow the instructions

Oct 04, 2009 | Garmin Edge 305 GPS Receiver

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No buttons work including power and the device is frozen.

My husbands did too. Then like three days latter it restored itself

May 24, 2009 | Garmin Edge 305 Bundle Includes Hr And...

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Garmin Edge 305 shuts off from vibrations during normal use. go there and all will be revealed my friend This is a common problem with 305/205... there is a battery connection in unit that thru use becomes strained(hence rough road shutdown) i followed the instructions in the blog and inserted a spacer in battery terminus and no more probs... good luck

Mar 15, 2009 | Garmin Edge 305HR GPS Receiver

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Edge 305 turns off at every little bump in the road?

The above link no longer works.
But this one does (for now):

I made this surgery and it now works great.

Aug 18, 2008 | Garmin Edge 305 GPS Receiver

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Garmin Edge 305 - Uncommanded Power Down

I moved the battery wires to the main board, bypassing the spring contacts. No doubt my warranty is voided but at least the thing works now.

Feb 17, 2008 | Garmin Edge 305 GPS Receiver

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