After each message I use the lcd.clear(); so the previous msg does not interfere with the other one. Is there a way to have a default msg. after the lcd.clear();. For example, Hello or Scan your chip.
This statement implies that you know how to use lcd.print() and lcd.clear()? Is that a load of buffalo poop, or do you know how to use the two functions?
If you do, it doesn't take an IQ much above your shoe size to see that:
lcd.clear();
lcd.print("Gatheringrook1 is slow");
will print a default message. Whether it is the one you want, or not, remains to be seen.
If your question was whether the LCD could display something on it's own, then the answer is yes. It will display the same "message" that is displayed before you write anything to it.