Receive problem

[Warrior10120]

Hello, i'm using Nextion and a Arduino Mega 2560, and my problem is i can't send to nextion with arduino but arduino don't receive from nextion, ReceiveMessages example don't work, but UpdateText example work so the problem is like i said i can't receive from nextion, on nextion, i only put 1 button to try the receive message, send component ID activated on it. And i receive anything on arduino when i touch the button. I tried to plug the nextion TX cable every where but it isnt working, i even setup the library for Serial1 and still not working, so i don't know what to do to fix it :c please help me