Many thanks.
I got telnet working so i´m going to try the plugins.
Edit:
Just a final question, in order to get the weather app running is it necessary to always running it from telnet?
Going trough telnet and executing the steps i the initial post, does works but only if i use the killall nickel command first.
The issue is that i got the app runing but the screens freezes and in order to get back to the normal functions of the Kobo í have to soft reset it.
Then the app is gone and is the only way to activate it is trough telnet?
I have installed the plugins , wich gave me aan extra options, tools-browser-chess-tweak settings,initial menu, Diverse(?) and Leds.
Again many thanks for your time