Hi
guimonds,
Make certain you have the unit plugged into external power, and the indicator light (LED) is
ON. It would be best if the LED shows "Green", indicating a full charge on the battery also.
Place a blunt-tipped object (larger paperclip or toothpick with sharp end cut off) into the hole at the reset location, which is on the bottom left part of the
GPS. Press down for 10-15 seconds on the reset button, then release. Now, press and hold the
On/Off/Standby for at least 6 seconds (try 10-15 seconds if needed) to power unit back on. If there is still no power-up, then your unit may be defective. Download the complete 110-page manual from here for more information:
http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man
I hope this helps get it working. If I can help further, please let me know. Thanks.
Regards, Bill