Question about Garmin Nuvi 255 GPS Receiver
When I start my Garmin nuvi I see the GARMIN splash screen, then the message loading maps. Then it crashes, by which I mean that the screen goes black and it is apparently off.
I have tried to reset by turning the on/off switch and holding for 8 seconds, as recommended by the manual. This does not change the behaviour. (There is no other reset switch as far as I can tell. On the bottom there are stickers but if I lift them up I see nothing but smooth plastic and 2 small screws).
I have also tried to clear the user data, by holding down the screen in the lower right corner of the screen as the unit is turned on. (This worked for me once in the past, but now does not.). The unit does not seem to recognize this and boots as normal (and then crashes).
Try resetting the unit and also charge it using only the wall charger overnight.
Here's how to reset -it just puts everything back to factory settings -
1- Turn unit on WHILE HOLDING your thumb in the lower right corner as shown in picture.
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Posted on May 08, 2010
Posted on Jul 14, 2010
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Posted on Jan 02, 2017
Just go to http://www.garmin.com There will be a registeration link. Yes I think that you will get a free mapupdate with your registeration at least they used to do that. You will need your unit serial number and model.
Posted on Apr 07, 2009
SOURCE: it says . cant unlock maps.
Follow this below
Go to your account at garmin that you created to manage your maps.
Click Manage Maps
You should see your unit and it’s unlock codes
Copy all the unlock codes for your device
Close your internet browser
Right click on your desktop
Click new, and then click a new Text Document
Click on the newly created Text Document icon from the desktop
Type your unlock codes into the document
Click File and Save as
Change the file name to gmapprom.unl (( double check this please ))
Change the “Save as type” to "All files"
Close the document
You should see the file gmapprom.unl on your desktop
Right click on the gmapprom.unl file and then click copy
Plug your Garmin device in and then click Computer/ My Computer
Click on the nüvi drive
Right click on the Garmin folder and click paste
Safely disconnect your Garmin device from the computer
Posted on May 19, 2009
This error is caused by a corrupt or missing map unlock code. Please email me @ firstname.lastname@example.org and I will talk you through on how to fix the problem.
Posted on Jul 17, 2009
If you unplug the unit and remove the battery
i would check the fuse inside the unit to be sure that it is ok if it is than
leave it unplugged and the batttery out for 30 min and if there is a reset button on this after the battery is removed hold in the reset in for 2 minutes then after the 30 min replace the battery and plug in the unit and try it again his should be enough time for the internal reset to reset it'self than just replace the battery and if this still oes not help remove the battery again and leave it sit for 1 hour to let the internal reset device reset it'self ok and you should be good to go
Hope this is very helpful
Best regards Michael
Posted on Dec 10, 2009
Hook up your nuvi to the computer and surf to the Garmin website. They will have the latest upgrade - but they're not free! Read all about the maps you'd like to install for possible issues/bugs (we call them undocumented features). Be prepared with your credit card if you like what you see. Good luck!
Posted on Oct 01, 2010
Testimonial: "thank very helpful and all done."
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