Question about Magellan RoadMate 300 GPS Receiver

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Magellan roadmate 300

Sorry about that ... what i meant was it won't turn on. i checked the plugs and wires...etc. can't seem to get it to turn on. pls advise if it needs to be returned or if i do something wrong.. thanks.

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Re: magellan roadmate 300

Duplicate post - check this thread; :)

Posted on Mar 26, 2007

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1 Answer

My little buddy won't turn on, it's charged, plugged into computer. green light won't come on at all. I held the power button on for 10 -15 sec with no response.

I have 2 of these devices. Try using a cellular phone charger with the same plug at the end and plug it in. I have waited 5-10 minutes after doing this and they have come back to life and turn on. Maybe it will work for you.

May 14, 2011 | Insignia GPS Devices

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If you can try first changing the battery of the unit to check if everything will be working fine, because there's a possibility that the battery went bad or worse the unit has some problem with it , if after changing the battery still have the same problem better have it replace and take the new unit Off Shore for your own good.

Hope that helps..........

Aug 11, 2008 | Garmin GPS Devices

3 Answers

Wire problem


Might this help? 83b9bee.jpgThis was originally posted here.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

May 30, 2008 | Magellan GPS 315 GPS Receiver

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My nuvi 1490t came with a short USB cable. When I plug it into my computer the GPS screen shows the mass storage icon anfd the batterydoes not seem to be charging/

When you plug it into your computer the satnav is meant to go into the mass storage mode. It should charge but it charges at only half the speed it would with a charger (i.e. it takes approx 8 hours to charge.)

Dec 12, 2010 | Garmin nuvi 1490T GPS Receiver

1 Answer

When i plug my device up in the car it will go to a screen that shows a pic of it hooked up to a computer, it looks like. It will not do anything else it just shows that and will not allow me to use. Also...

Hi - check to make sure you are using the charger meant for the Garmin. this has happened to my Garmin when I inadvertently used my blackberry charger with the Garmin.

Nov 28, 2009 | Garmin nuvi 200W GPS Receiver

1 Answer

Garmin 178c turns off on it's own.


Sounds very much like the wiring plug connections in the back, always overlooked but so important that connections are tight and contacting.

Jul 06, 2009 | Garmin GPSMAP 178C GPS Receiver

4 Answers

Re: Won't turn on

your power cable has a short in it. replace it.

May 16, 2008 | Cobra 4000 GPS Receiver

1 Answer

Won't turn on

One of the wires in your power cord could be broken. If you have the a/c adapter, see if you can power up with that. If you know someone else with a working Magellan, you could borrow his cord to test your unit.

If not, check the car adapter with a continuity tester. Put one tester probe on one of the side springs of the car plug and the other probe on the outside metal of the GPS plug. If that shows continuity, place one tester probe on the end tip of the car plug and the other inside the the GPS plug.

If either of those do not show continuity, first take apart the auto side of the cord. Check the fuse and the wire to contact solder joints. If they seem okay, carefully cut back the molded plastic from the GPS end and examine the wire to solder joints. If any are broken, replace the cord or resolder the joints.

Nov 05, 2007 | Magellan RoadMate 700 GPS Receiver

2 Answers

Power problem

If you have the unit plugged into a cigar lighter adaptor socket, then first check if the socket is working using another device. Then unscrew the und of the plug and the small silver tip in the centre will come out. This holds a fuse which may have blown. replace it even if you think it looks ok unless you know how to test it.(My bet is that this is the problem)- check at the end of this solution for a link that explains how to change the fuse. If the unit was hard-wired to the car power, then somewhere between the car battery and the unit should have been a fuse, possibly although unlikely more than one. Check this, it would normally be close to the unit, but it may be under the hood somewhere, possibly an in-line fuse holder (usually looks a bit like a short fat fountain pen, with a way to twist the two halves to release) - if the wiring is new compared to the car, hopefully it will be easy enough to follow. It is also possible that there were spare fuse slots in your car fuse panel, and one of these may have been comandeered for your gps, check they are all ok - usually you can see this visually. There is a small possibility that the battery/charging system of the car is not in perfect working order. There may be enough voltage for the car to start and run normally, but an item like a gps can be much more sensitive to slightly low voltages. If you can use a multimeter then this should be easy enough to check yourself (ask again if you need help with this), otherwise any auto-shop should be able to check it very quickly (2 minute job) and check the voltage available at the GPS. If the unit became excessively warm from sunlight etc. then there is the possibility that the internal battery has failed - contact garmin and they will advise you how to get a replacement - probably you have to send the unit to them. If none of this helps or sheds any light on the problem, this link has the manual etc. for your gps if you need it; also there are contact details for garmin - the warranty is still valid so long as the unit was installed properly, and garmin are usually very helpful. Page 31 of the user manual shows how to change the power fuse if you are having trouble. Hope this helps:)

Mar 18, 2007 | Garmin StreetPilot c550 GPS Receiver

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