Navman iCN 520

I found that if you open out the receiver at the back and make sure it is touching the windscreen it works for me. If not I don't get a signal. It is worse in one of our cars because it has a heat reflective windscreen.

click here for those options, perhaps

• Try to check maybe the gps is in a DEMO mode try to deactivate the demo mode.
  

I’m happy to assist further over the phone at https://www.6ya.com/expert/ramy_d9e7ebea3891f482

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

I had this problem when I first started using this product. The key is to make sure you start at your last end point. ie - if you are starting from your house, make sure that you last route ended at your house. Otherwise it has a very hard time determining where you are. Also, you need to sit still while it finds the gps, it continues to look for a position, but has a hard time finding when you are constantly moving. I know it's annoying, but this seemed to help in the long run. Good Luck

I had this problem when I completely deleted the Backup folder from \My Flash Disk.

Restoring the backup folder allowed the 520 to operate properly again.

It is possible that you have a corrupted APPStartupSec.exe application. Without this file working it appears that the NAVMAN waits in USB mode for ever!

Hope this helps.

You can unlock the iCN520 and install other GPS software on it. The iCN520 can run virtually all the major GPS software available today; from Tomtom to Miomap and beyond.

Instructions on how to unlock the iCN520 can be found at:

• navmanunlocked.forumwise.com
• navmanunlocked.wikispaces.com

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?

patch from navman site