Nextion with Arduino change text

Question

I'm working with a display nextion NX8048T070, i'm trying to change a text with a serials instructions In the Nextion debug the code works and text change, but in my display didn't change, I used software serial and nextion library (all it)

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}

void loop() {

  Serial.print("t0.txt=");     // This is sent to the nextion display to set what object name (before the dot) and what atribute (after the dot) are you going to change.
  Serial.print("\"");          // Since we are sending text, and not a number, we need to send double quote before and after the actual text.
  Serial.print("De entrada");  // This is the text you want to send to that object and atribute mentioned before.
  Serial.print("\"");          // Since we are sending text, and not a number, we need to send double quote before and after the actual text.
  Serial.write(0xff);          // We always have to send this three lines after each command sent to the nextion display.
  Serial.write(0xff);
  Serial.write(0xff);

  delay(1000);
  
  Serial.print("t0.txt=");     // This is sent to the nextion display to set what object name (before the dot) and what atribute (after the dot) are you going to change.
  Serial.print("\"");          // Since we are sending text, and not a number, we need to send double quote before and after the actual text.
  Serial.print("Apoco si");  // This is the text you want to send to that object and atribute mentioned before.
  Serial.print("\"");          // Since we are sending text, and not a number, we need to send double quote before and after the actual text.
  Serial.write(0xff);          // We always have to send this three lines after each command sent to the nextion display.
  Serial.write(0xff);
  Serial.write(0xff);
  delay(1000);
}