I'm using a CR0452 to make some tests. This display has used before for another project. I'd like to download a new program, but there is no way to communicate with its. I have checked all the wiring and the 120ohm resistances and everything looks ok. I've tried to check the baud rate with Maintenance software but it doesn't look work. There is some way to restore the display from the device (for example using two buttons on CR1201 is possible, at startup, to load the display menu)?