Question about Garmin Forerunner 305 GPS Receiver

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Won't turn on or charge

When I press the power button on my Garmin Forerunner 305, nothing happens. No sound. The screen stays blank. I thought the battery was dead, but when I plug it into the charger, same thing -- no "charging" sign appears on the screen.

I have tried unplugging and replugging the various pieces of the charger and using different outlets, to no avail.

I'm not sure what could have caused this. When I put the watch on the charger a few nights ago, it seemed to be charging fine.

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Press Mode (bottom left side button) and Reset (left front button) simultaneously, let go, then press On (top left side button).

Posted on Aug 06, 2009

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1 Answer

It does not turn or or charge. Connected to laptop but got same results. Tried to install latest software but it would not the unit (forerunner 305). Message was that there was no unit connected...


Here's a few options: Soft Rest

- Hold down MODE + RESET for few seconds
- Press the Power button to turn on the device

------------------------

Hard Reset
(This will erase all of your data inside the device)

- Hold down MODE + RESET + POWER for few seconds
- Press the Power button to turn on the device

------------------------

Firmware Downgrade/Upgrade (2.9 > 2.8 > 2.9)
(This will erase all your data inside the device)

Software Downgrade/Upgrade

- Connect your Garmin Forerunner 305 to the computer
- Press the UP arrow button and hold while doing all the other steps below
- Press MODE + RESET for a moment (the computer will recognize the device)
- Dowload the Firmware from Garmin's website.
- Downgrade Firmware from 2.90 to 2.80. (You are still holding on that UP arrow button!)
- When the update is finished the Forerunner 305 should power on running the Firmware 2.80.
- Let go of the UP arrow button, disconnect the device from USB, connect it again and the computer should recognize it normally
- Update the Firmware to the current version.

Nov 04, 2012 | Garmin Forerunner 305 GPS Receiver

1 Answer

My Garmin Forerunner 305 quit working at mile 15-ish during my 26.2-mile journey. There was a faint sound but the screen was blank. It doesn't seem to charge. I tried soft reboot by pressing on the MODE...


Try hard reset.

Hold mode + start for ten seconds (device off beforehand). Keep holding then pulse push lap/reset button.

You get a screen asking to return to default settings. You will loose all your data, but device should work then

Sep 26, 2010 | Garmin Forerunner 305 GPS Receiver

1 Answer

It is totally dead and will not charge.


Had same issue... this worked for me:
1. Snap into charger base & plug into wall. Screen still blank. 2. Press Lap/reset, Mode, & Power buttons all three at the same time & hold for 3 seconds - unit will reset. Hopefully then you'll get the 'charging in progress' message.
(also make sure copper points/connectors on unit and charger base are clean).

Aug 28, 2010 | Garmin Forerunner 305 GPS Receiver

1 Answer

Garmin only turns on when its on the cradle charging. ONce I remove it, the screen is blank and nothing happens. Is it the battery or connection inside?


Probably the battery. My battery lasts all of 20 seconds since i almost always have it plugged into car charger i guess i killed battery

Mar 15, 2010 | Garmin Forerunner 305 GPS Receiver

1 Answer

Garmin 305 would not turn on after a ride. would


Reset your unit by pressing the "Mode"(reset/lap) and "Power" buttons at the same time. afte it turns on run system updater on computer

Jan 10, 2010 | Garmin Forerunner 305 GPS Receiver

1 Answer

Ive not had my garmin 305 long, it will not charge or turn on.


This might just need a reset. To reset the Forerunner or Edge 205/305:
  1. Connect the device to the computer using the USB cable
  2. Press and hold the mode and reset (lap) buttons together for 10 seconds
  3. Release and wait for 3 seconds
  4. There should be some indication of battery charging (either Finished or In Process)
  5. Power the device on while keeping it connected to the computer
In addition, please make sure that the device has the latest software version available by downloading and running the WebUpdater program. To update the software, please use the following link:
http://www.garmin.com/products/webupdater/

Sep 21, 2009 | Garmin Forerunner 305 GPS Receiver

1 Answer

Garmin 305 wont power on, wont charge on cradle


Same thing happened to mine. Put the unit in the cradle (just like you are going to recharge it) and press the reset and mode button at the same time for 3 seconds. This will "wake" the unit up.

Mar 30, 2009 | Garmin Forerunner 305 GPS Receiver

1 Answer

Garmin Foreruner 305 will not turn on or charge


I had the exact same problem and thought my beloved forerunner 305 had finally died. Try pressing the lap and mode keys simultaneously, and then power on. That may do a "soft reset." Worked for me.

Jan 05, 2009 | Garmin Forerunner 301

2 Answers

Charged my new nuvi 760. Unit will not turn on. Followed the steps in manual, held the on button to the left for 8 seconds, then turned it on and nothing. If I plug it back into the wall charger the Garmin...


To power the unit back on, press the "Mode" and "Reset" buttons at the same time. Let go of those two buttons, press the power button, and the unit will turn back on."

Apr 28, 2008 | Garmin Forerunner 305 GPS Receiver

2 Answers

NO life in my Forerunner 305


There is a hidden recessed button on the right side of the Garmin. Press this button and it should reset the unit and it should turn on immediately.

Jan 13, 2008 | Garmin Forerunner 305 GPS Receiver

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