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).
Hidden reset DOES NOT bypass Garmin Lock.
The only way to cancel Garmin Lock is by entering the security code or by taking the unit to the Security Location used when the lock was first set.
Garmin Service Centres can cancel Garmin Lock, but they require proof of purchase and will charge for the service. Units which are found to have been reported lost or stolen will be retained and notified to police in the area appropriate to the address of the person who sent the unit in for reset.
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SOURCE: My Garmin Nuvi 255w Car Gps
You must call Garmin at 1-800-800-1020 they will walk you through plugging in nuvi to your computer (must have usb cord) and it will upload then go to my computer and choose garmin drive then click garmin folder and either find the folder they say or make new one like I did with the guy on the phone and put in code. The only information needed is the numbers on the bottom of the device.... super fast fix!
SOURCE: i have a garmin nuvi 680 gps unit lock
Hi,
When you first programmed the GPS you have the opportunity to select a safe location,
if you selected the safe location, go back to that location, and the lock will not be on, it is for the reason of forgetting it, but it will only work in that location ~ ( ie: your old driveway )
If you cannot do this,
it's a Garmin job to unlock it,
There is no other way to unlock it.
Regards
Richard.
SOURCE: locked out of Garmin nuvi
To perform a Master Reset on the nuvi 200, 205, 465, 500, 600,
700, 705, 1200,1300,1400 or 1600 series device:
Note: A master
reset will erase all waypoints or favorites and will restore
your unit to the default factory settings. If you would like to back up
your favorites you can find instructions to do so here.
The
device will automatically reset. Follow the on screen prompts then
place your device in an area with a clear view of the sky until it
acquires satellites.
***Don't forget to VOTE for the guys who take an interest in helping!
SOURCE: nuvi® 650 Car GPS Receiver: My Garmin Nuvi 650 has a locked screen. The touch...
Hi,
Your particular GARMIN is locked and to unlock it - you must send it back to GARMIN or DRIVE to the location where it is preset.
Please go here and read page 6
SOURCE: nuvi® 255W Car GPS Receiver: i have a garmin nuvi 255w and its locked and need ...
Plain and simple answer: Can't.
Detailed answer: this is a security system feature which cannot be bypassed. The only way to get around the password feature is to send it in to Garmin, with the original receipt from an authorized dealer, and they will unlock it for you.
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