What's problem in this code. i can to connect my device
any error message?
EDIT: ok, I see... error 507...
which Android device and Android version are you using for your tests?
did you try a search in the community for Error 507
https://community.appinventor.mit.edu/search?q=507
did you try Do it?
use Do it to debug your blocks, see also tip 4 here https://puravidaapps.com/learn.php
see also Live Development, Testing, and Debugging Tools
Taifun
Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by 
Taifun.