Question about Garmin Forerunner 305 GPS Receiver

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No power - Garmin Forerunner 305 GPS Receiver

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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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When i put the USB cable and connect to the LAP, its not getting charged. How can i solve the problem? do i need to install any software?


Hi - when you say "LAP" I assume you mean laptop or notebook computer. Some computer USB ports do not have sufficient power to charge (or operate) devices like cellphones, GPS, large external hard drives, etc. You may be able to charge if you disconnect all other USB devices that aren't needed to run the computer. In order to get around the problem without having to do all that, either purchase an external charger for the GPS (which may be fairly expensive) or purchase a powered USB hub.

An external powered USB hub looks like a traditional USB hub, except for the fact that it has a power cord to connect to your home power outlets. The power cord will often look like AC adapter. The powered USB hub is ideal because they provide additional USB ports, are fairly inexpensive, they provide all the power for the USB devices that are connect to them (the computer's internal power supply is not used) and it can power or charge devices connected to them without needed the computer to be powered on. Simply plug the USB hub into a USB port, and AC power source - then connect the devices that need a large amount of power to the hub's USB ports instead of the computer's USB ports.

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The parts included with powered USB hub (clockwise from left): USB hub, USB connecting cable and AC power adapter.

Many powered hubs will work without the power adapter - however they will supply power to the devices connected from the computer's internal power supply.

I hope this helps and good luck! Please rate my reply. Thank you.

Jun 08, 2011 | GPS Devices

1 Answer

Doesn't want to stay on


If your GPS unit powers down before it can fully boot up, use the steps below to charge the GPS unit and test the vehicle power cable:
  1. Connect device to a computer that is powered on
    • The unit should power On when you plug it in showing a computer plugged into the GPS unit on the screen (Mass Storage Mode)
  2. Press Reset button on the bottom of device if it does not power On*
  3. Allow the unit to set and charge for 3-4 hours
Once the device is charged please take it to the vehicle and test it on the vehicle power cable.
  1. Connect the device to the vehicle power cable
  2. Connect the vehicle power cable to outlet on vehicle
  3. Power the vehicle On
  4. Device should automatically power on
    • If a battery icon appears directly to the left of the time then it is not receiving a charge from the vehicle
    • Please check the fuse in the vehicle power cable
      • The end of the cable unscrews to reveal this fuse
      • Check to make sure the wire element inside the fuse is in contact and that there is no discoloration.
      • If you see either of these the fuse needs to be replaced with the replacement fuse specifications listed on the sticker attached to the cable.
      • If the fuse looks good and there is still no light, the vehicle power outlet may need to be checked to see if it has power.
*Note - The reset button may be found on either the left or right side. In some cases if the device does not have a reset button slide the power key to the left or On position for about 10 - 15 seconds.

Oct 23, 2010 | Garmin nuvi 200W GPS Receiver

3 Answers

Garmin Nuvi 260W will not start up. When not conneccted to power, unit attempts to start up, shows Garmin logo, then copyright logo, then "loading maps", then goes blank. When connected to power, the unit...


v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} If the device does not power on it could be a result of a extremely low battery. Please ensure that the device is receiving a charge while it is connected to the vehicle power cable. If the battery is receiving power from the vehicle power cable then the battery icon (located next to the time) would disappear from the Main Menu. clip_image001.jpg clip_image002.jpg
If the unit does not power on while attached to the vehicle power cable please follow steps from below to perform a soft reset:
  1. Connect the device to an external power source1
  2. Slide and hold the power key to the on position for 15 seconds
The device should power on. Notes:
  1. Preferably the vehicle power cable or a USB cable from a computer
  2. Some of the older Nuvi 200 series will have a reset button on the bottom of the device. It can be found on the bottom of the device on the same sticker that the serial number is printed on.
If your GPS unit powers down before it can fully boot up, the battery will need to be charged. Please charge the unit with the vehicle power cable or on a computer for at least three hours. After charging the unit, it should power on and function normally. If the unit will not charge in the vehicle, check the fuse in the power cable for the unit and the power outlet in the vehicle.

Jan 09, 2010 | Garmin Nuvi 660 GPS Receiver

1 Answer

Cant get my nuvi 260 to work


v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} If the device does not power on it could be a result of a extremely low battery. Please ensure that the device is receiving a charge while it is connected to the vehicle power cable. If the battery is receiving power from the vehicle power cable then the battery icon (located next to the time) would disappear from the Main Menu. clip_image001.jpg clip_image002.jpg
If the unit does not power on while attached to the vehicle power cable please follow steps from below to perform a soft reset:
  1. Connect the device to an external power source1
  2. Slide and hold the power key to the on position for 15 seconds
The device should power on. Notes:
  1. Preferably the vehicle power cable or a USB cable from a computer
  2. Some of the older Nuvi 200 series will have a reset button on the bottom of the device. It can be found on the bottom of the device on the same sticker that the serial number is printed on.
*
If your GPS unit powers down before it can fully boot up, the battery will need to be charged. Please charge the unit with the vehicle power cable or on a computer for at least three hours. After charging the unit, it should power on and function normally. If the unit will not charge in the vehicle, check the fuse in the power cable for the unit and the power outlet in the vehicle.

Nov 12, 2009 | Garmin nuvi 260W GPS Receiver

1 Answer

POWER SWITCH DOES NOT ILLUMINATE GPS SCREEN WITH 12VOLT PWR.


bjw122266 Have you tried holding the power button down for about 10 seconds or so?

Dec 29, 2008 | Navigon 2100 Portable GPS Receiver

1 Answer

My nuvi 780 suddenly won't power on. Used it this morning and then a short while later it's broken!


Solution A:

1. Disconnect from power source (automobile cradle and/or usb cable)
2. Slide the power button right into the lock position.
3. Slide the power button to the left and hold it for 10 seconds.
4. Your unit should have powered on after you released the power button

Solution B:

1. Disconnect from power source (automobile cradle and/or usb cable)
2. Slide the power button right into the lock position.
3. Apply light pressure anywhere on the touch screen with your finger.
3. Slide the power button to the left and hold it for 10 seconds.
4. Your unit should have powered on after you released the power button

This worked for me... hope it works for you. - Happy Holidays!

Dec 04, 2008 | GPS Devices

1 Answer

Garmin Nuvi 300 does not switch on. The wrong charger was used


1. If using the power/data cable to power your device:
  1. Make sure you have power at the source it is connected to.
  2. Check the fuse in the power cable.
  3. Use a volt meter to test the end which plugs into your device (the manual for the device should show which pins are power and ground. Make sure you are getting at least 12 volts of power. This will ensure you are getting full power through the cable and determine if the cable is faulty.
2. If using a 12 volt cigarette lighter adapter:
  1. Check the fuse in the adapter.
  2. Make sure the cigarette lighter in the vehicle has power by connecting another device with a different 12 volt adapter if possible.
  3. Make sure the metal tip on your 12 volt adapter is still connected
3. If using batteries:
  1. Make sure none of the battery terminals are still connected to the device.
  2. Try new batteries.
  3. Make sure the batteries fit tightly inside the device. This will ensure the battery terminals are not loose and you have good contact.
4. If you are powering the device on the built in lithium ion battery:
  1. If you have a power cable for the device, plug it into a power source and see if the device will power on with direct power. If it powers on, check to see if the battery is fully charged.
  2. If it is not, let the battery fully charge and then try to power it on with just the battery.

Sep 26, 2008 | Garmin GPS Devices

1 Answer

Won't Power from Cigarette lighter


Recently I had a similar problem with my 300 - worked fine with AC power, but was intermittent with the power point in my truck sometimes it wouldn't power up at all in the truck).

I used a small nail file (steel wool would work too) to break the "glaze" on the outside of the small plug that plugs in to the unit on the power cord. It seems that it wasn't getting a good ground. Has been working great ever since - worth a try.

Dec 12, 2007 | Magellan RoadMate 300 GPS Receiver

1 Answer

Lost power- will not come back on


If you have a multimeter you should be able to check the out voltage on the powersupply to make sure the power cable isn't at fault. You may also try wigling the power cord a little bit to see if the unit will then get power. If so you have a faulty powercord. If there are any fuses they should usually be accessible from the outside; that's the point with them - they should be easy to change. I would put my money on the power cable. If you have access to a diferent power source try that out. If the unit works with a different power source your power source is at fault. If it still doesn't work the problem is within your unit. Check to see if any pins on the power source and/or the units power plug might be bent or dirty.

Mar 07, 2007 | Magellan RoadMate 700 GPS Receiver

1 Answer

Garmin C330 resets itself


The first problem with it powering itself off is a battery problem. Your battery is not hold a charge.

The second problem with it powering itself on with the power cord attached is a power cord issue. The unit is suppose to automatically power itself on if a power cord is attached to it. This is Garmin way of turning the unit on when you start your car. Most auto cigarette lighter will cut power if the ignition is off, and restore power when the ignition is on.

Garmin uses this to turn the unit on and off. If the unit was being powered by the the cigarette lighter then it say unit is shutting down in 20 seconds after the power is cut.

Jan 21, 2007 | Garmin StreetPilot C330 GPS Receiver

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