I'm not sure, what you want to achieve. I would need to see some code. If you change the value programmatically you can update the validation ui with the event refreshvalidityui on the form field. If you want to reset the ui, you can either trigger a reset event on the form or resetvalidityui on the form field
$('input').val('foo').trigger('refreshvalidityui');
or
$('input').val('foo').trigger('resetvalidityui');
or
$('form').trigger('reset');
Please let me know, if this helps.