In Mogoose i found my document with find, but using update not - node.js

Question

I'm using nodejs and mongo (with mongooose) to build a simple aplication, but i have this little problem.
If i search my documento using a find method, i found the document (and yes, i can update in this), but if i use a update method, o cant find it. Why?
My controller method
var query = {
_id: ObjectId(req.params.runner_id)
};
Runner.find(query, function(e,o) {
console.log(o); //here i found
})
Runner.update(query, req.body, function (err, qtd) {
console.log(qtd); //here note
if (err) {
...
} else {
...
}
})
My Schema
module.exports = mongoose.model("Runner", new Schema({
cellphone: {
type: String,
require: "qual o telefone?",
unique: true,
validate: {
validator: function (v) {
var re = /^\d{11}$/;
return (v == null || v.trim().length < 1) || re.test(v);
},
message: "telefone inválido"
}
},
created_at: {
type: Date,
default: Date.now
},
advisors: [{
name: {
type: String,
require: "entre com o nome"
},
email: {
type: String,
require: "entre com o e-mail"
},
advisor: {
type: ObjectId,
require: "qual a assessoria?"
}
}]
}));
My output
with update -> { ok: 0, n: 0, nModified: 0 }
with find -> [ { _id: 5a0b99a9328fec0e4111ca52,
cellphone: '85999981114',
__v: 0,
advisors: [ [Object] ],
created_at: Wed Nov 15 2017 01:34:33 GMT+0000 (UTC) } ]

Answer 1

app.get('/', function(req, res){
var query = {
_id: ObjectId(req.params.id)
};
Runner.find(query, function(e,o) {
console.log(o); //here i found
})
}
app.put('/:id', function(req, res){
var Id=req.params.id;
Runner.findById(Id, function (err, qtd) {
console.log(qtd); //here qtd will found
if (err) {
...
} else {
...
}
}