Help TomTom Go 510

Hi. I have a problem with a tomtom go 510, it doesn't take a satellite signal. I have updated the navcore with TomTom Home but it only offers me an update until navcore 7. Do you know if it is possible to put another navcore (9,541) to make it work? And where could I find it?
Let's see if someone offers me a little help.
Thank you.

Read this:

topic21440.html

Thank you very much, I did not know that this solution would also be useful for Tomtom Go X10