there cud be a malfunction or your battery is been damaged or dying, the life of any battery can goout according to how old the unit is you shud be able to find what ever you need at discount prices here>>www.discountbargainprices.com
Your Garmin probably needs upgrading of its software. Plug the unit into a computer running Garmin Express and, assuming the device is registered, the unit will be detected and upgrades automatically identified. Follow the process to complete the upgrade(s).
Sorry, no free maps. I know I've tried. You either live with the old map or but the latest version. I bought the life time maps updates and I'm glad I did. I've updated my maps at least 6 times. New maps are about $70. Life time maps are about $99 (when I bought mine) BUT FIRST make SURE you have the latest software in YOUR computer and in YOUR Garmin before you load any maps. You can get that FREE at Garmin here:
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To download the latest unit
software visit Garmin website: www.garmin.com/webupdater After installing WebUpdater once from the Garmin
website, perform all future software updates from your computer. Simply connect
your compatible Garmin device to your computer, then run WebUpdater from your
computer's "Start Menu" by selecting "Start",
"Programs", "Garmin", and finally "WebUpdater" REMEMBER: It takes hours to
do a complete a map update.
Unless you bought the Lifetime maps you may have to pay for current maps. *
Does this help? Let us know. Thanks.
I believe it will work without the transducer. This is based upon my locating reports of other Garmin models working without the transducer such as the Garmin echoMAP CHIRP 74sv. Garmin support would likely respond to such an inquiry.
Most GPS navigation devices from Garmin has a reset function which allows user to access a Maintenance Mode screen with system information, diagnostic details or perform the reset function to restore Garmin Nuvi or other series unit to its original default factory settings.
Depending on which model of Garmin GPS unit you're using, the following routine can reset the Garmin device to original factory loaded settings, or bring up the Maintenance Mode with access to System Information and View Diagnostics screen, where users can see various logs, and of course, clear all user data (reset to factory defaults) or clear Waypoints.
In order to reset Garmin device or enter into maintenance mode, perform one of the following procedures:
Power off Garmin unit. Press on continuously the upper top left corner of screen and then power on the unit by pressing once on the Power button. You should be prompted to clear all user data, or asked if do you really want to start up in maintenance mode. Press "Yes" to reset (warning: all data will be erased and lost, so backup before proceeding) or enter maintenance mode.
Hack above works on Garmin Nuvi 660, 680 series.
Turn off Garmin device. Press down on bottom right corner of the touchscreen, and then power on the GPS unit. You should be prompted whether do you really want to erase all user data, or asked if do you really want to start up in maintenance mode. Press "Yes" to reset (warning: all data will be erased and lost, so backup before proceeding) or enter maintenance mode.
Trick above works on Garmin nuvi 200, 250, 360 750, 760 series unit. In fact, there is a video demo by user of Garmin Nuvi 360 on how to perform the hidden reset function.
Hope helps. (remember to rate and comment this answer).