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My N399M Smart GPS won't turn on?

Was working fine then one day just wouldn't turn on. Tried running it on a different power cord, nothing. Unit is about six months old. Has done a few strange things in six months, but nothing I haven't been able to figure out until now.

Posted by Anonymous on


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

  • 38 Answers

SOURCE: Freezing with a blue or checkered screen

try holding the reset button on the back in for 30 seconds.    Sounds like its in test or programming mode.    

Posted on Oct 25, 2007

  • 50 Answers

SOURCE: GPS freezes when I need it to work!

i have a 800 also but it does not freeze because i make sure it is up to date on all firmware and software,if i was you chk out for updates on the magellan website2.gif after you register your unit then if ther is, which i know do the update and you will have no problems after that.let me know how it goes.

Posted on Jan 06, 2008

  • 373 Answers

SOURCE: No Power

If you have an volt meter, do check for 12volts DC . Otherwise the GPS unit is defective and highly technical

Posted on Mar 15, 2008

  • 3 Answers

SOURCE: Battery

BertM, I had the same problem and also do not use it frequently enough. The unit finally gave way about 7-8 months. I am hoping that Magellan will honor their warranty and find it's bad battery. I am awaiting an RMA. Visit following site for help:

Posted on Jun 30, 2008

SOURCE: power pin fell off inside of Magellan Roadmate 3000T

I managed to solder my connector back in place. The ground trace broke away from the board so I had to install a jumper to ground. I put RTV on the connector to secure it after the repair.
Worked great for a few weeks until it was dropped again and lost power, something else has a broken connection.

Posted on Aug 11, 2008

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