This only applies if you have paid for it. I have a fix!!! hope you guys can test it. close map if you have it open. go and find an old backup of settings when you have wayfinder activated (any one that you have when you know wayfinder was activated) copy the setting.zip from the backup folder to your pc and extract it i installed open ssh server on the n810 and used sftp but this is up to you how you do it. open the extracted zip file and go to "Root\home\user\.navicore" on the device (i used filezilla and sftp) browse to "/home/user/.navicore" replace the settings.txt in to the .navicore folder with the one from the backup. now copy all the files from the lbd folder from the backup to the device. reopen maps and it should be activated. if this works please tell me. also feel free to write a better tutorial as i know this one is not great.