Finally, I found a way to do it by myself. So I proudly present it to all of you, folks ![]()
#include <LiquidCrystal.h>
void setup(){}
uint8_t l1, l2, l3, l4, l5, l6 = 0;
boolean runOnce, printOnce = true;
LiquidCrystal lcd(l1, l2, l3, l4, l5, l6);
void loop(){
 if (runOnce){
  l1=8; l2=9; l3=4, l4=5; l5=6;l6=7;
  LiquidCrystal lcd1(l1, l2, l3, l4, l5, l6);
  lcd = lcd1;
  lcd.begin(16,2);
  runOnce=false;
 }
 if (printOnce){
  lcd.print("hello world");
  printOnce=false;
 }
}