Problem with latin words

My database is with the following config

'charset'     => 'utf8',
'collation'   => 'utf8_general_ci',

my table too, my record has the following value at the nomeproduto column teste tésetand when I die and dump it on screen it shows me this `teste tï¿?

What have I made?

I already used some codes that I found

SET NAMES 'utf8';
SET character_set_connection=utf8;
SET character_set_client=utf8;
SET character_set_results=utf8;

dd(utf8_encode($produto->nomeproduto));

my file is in UTF-8 encoding

nothing works