Navman icn 520 stuck on USB screen

Take it to service center and they will update it

click here for those options, perhaps

This is usualy a sign that the data you downloaded is not in correct format or is corrupted

This sounds like you have an issue with the software install on the device.

Have you tried to unlock the device before, and this has gone wrong?

Does the device connect to a PC via active sync? if so can you browse to the \my flash disk folder?

If you can use active sync then there is a good chance that you can salvage your device. :)

Have you tried the reset hole? make sure there is nothing stuck in there that could be pressing on the button. When you press and hold the reset button the screen stays blank.

If you press the reset button does the unit turn on? Mine turns on when I press the reset button even after I turn the battery off then back on.

Hope this suggestion might help you restore functionality.

There are two possibilities:

1) it is a software problem, in this case you can solve it downloading and installing a firmware update. You can download latest software from here.
This is most likely situation.


2) If the above did not work it means that you have an hardware problem, probably the touchscreen is slightly faulty, or the lcd ribbon cable is not well connected. In this case I suggest to take the navman to service.

Regards

The CD is not available for download from Navman it seems, but you can get it at thepiratebay.com. Just search for 'navman icn' and you'll find what you need, I just did. Better learn how to download torrents though! :)

is there any indication that the volume control still works?

that is probably due to the battery being totaly dead,
try using a mobile phone charger (nokia),
usb is for data transfers.

patch from navman site