How to unlock Uniden Igo35

Is anybody aware if there is a unlock for Uniden Igo35.. It is running a version of Primo, already. .Cant tell which one) I did try to over write Primo with another version with new maps, but it must do a test on its self or something as it just switches off... Have tried looking all over the net, but no luck so far..

Thanks for your time..

Cheers

Did you confirm the new version of Primo was working before installation?

Yep,, I have managed to get it working on another china no name brand. That is the reason for asking if there is a unlock for the unit.. Hopefully, out there somewhere..

Thanks for your time..