After firmware upgrading my Sony Ericsson K800i I suddenly found myself unable to download Google Maps www.google.com/gmm which was very annoying as its quite a neat feature. The error code read “Invalid application”, and there was just nothing to do the errorcode came up every time not matter what..
it took a bit of debugging but the solution seemed to be in a post on the Google Maps Forum from a guy called Thorsten;
I think I found a solution (to be fair: I found the solution in another forum 🙂 !!
It might be done differently on other models but it worked on my SE K800I: