Renault Carminat Tomtom NavCore 8841 upgrade

Hello All,

I have upgraded my tomtom in 2011 new using the navcore 8841 and map Europe_West_860_3126.

At that time, to upgrade I used the very useful following post:
http://www.navitotal.com/showthread.php?2620-10-Simple-Steps-To-Upgrade-Carminat-for-Newbies


I'd like now to get a fresher map but to get IQ routes, I also need a new navcore.

Reading all the un-upgradable new models I am a bit worried doing so.

Could please help me there?

Can I upgrade my navcore and maps without risk?

If yes, which navcore and map should I choose?

I've tried to find out this info in the various posts, but was unsuccessfull.

Also giving me a link to a thread that could answer my questions would work!! :)

Thanks for any help.