Well I see one problem if this is what your HTML looks like. It looks like you have missing end quotebon you ngForm. I would look at angular 2 Forms docs maybe you’d find the answer there. It looks like you using the the template driven method. I would also check yo typescript/JavaScriptto make sure you importing any form stuff from the Forms module and not the common module.
Well the major change to forms in angular happened I believe it was rc2 or 3. I didn’t think that was much change form wise between rc4 and rc5. I wish I could be more help but I use the model driven form not the template driven and having no issues. I have even used ngModel in some places. I would really double check your form ports becausei know in beta 11 and ng rc4 they moved all the form stuff to @angulaer/forms.
I was just looking some code and it looks.like you ngModel should formName.mobile. obviously form name is the variable that you named the form as a whole.