Hi, recently my StreetPilot 2720 started losing track of time when off, meaning if I don't use it for a week, when I turn it on it will still think it is the moment it was last turned off. If a week has gone by, it can take upwards of 10 minutes for the thing to lock onto a satellite connection at which point it updates its clock. It used to pick up a connection within a few moments.
I guess there must be some kind of battery inside that powers the clock when the unit isn't in use, but I can't find anything that indicates this is so. Anyone has a similar problem? How did you solve it?
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Same issue on Mac OSX 10.4.1 with my SP 2720. Just purchased and is in excellent condition, never registered. Double checked all connections, downloaded and re-downloaded updater. Updater continues to say cannot find device. Tried other USB cables, ports, turned on/off, etc... Nothing. Would LOVE to know what resolutions others have found. Please let us know!
If it is a streetpilot 2720 also may work on other models...
Turn unit off hold down menu button while turning unit on and, hold button down till a white page comes up that says general.
This this the testing mode if it is not testing then press the menu button, after test is down press menu button a couple of times and it will go to another testing, continue to the end turn power off then back on and should work it did for me.
You connect the 2720 to your pc with the supplied usb cable. Power up the 2720 with the ac supply cable. Then run the garmin webupdater. It will do the update.
You must have previously installed the webupdater and the usb drivers. If you use the garmin mapsource software and can connect to the 2720, to transfer waypoints, tracks, etc., then the usb drivers are already installed.
You can download the webupdater at this site: http://www8.garmin.com/products/webupdater/howtoinstall.jsp
When updating the maps, you need to be registered with Garmin. All the numbers came with the unit. If you turn over your Garmin 2720, there will be a number flanked by "*". That is your unit ID. When you register, you must provide that ID. From the site, you can update your maps and you shouldn't need the 25digit key. It's programmed into your unit.
Mine just started doing the same thing. I took apart the speaker power cord, but don't see anything wrong with it. I thought I saw the unit turn off/on one time when I moved the cigarette plug back and forth, but as I said the wires are fine. I have the power cord apart right now and have 12 volts hooked up to the wires directly and the unit has been sitting here for 30 minutes without resetting.
I tried another power cord and that was not the problem. I did do a firmwre update and that corrected the unit. It has been working well for the past 3 weeks. You should go to the Garmin website and download the latest FIRMWARE update.