Connecting the Listener in Raspberry

Hi all, im having trouble with the Listener. I used putty to connect using /dev/ttyACM0 with 115200 and all was okay.
unfortunately i must to install Raspian again (using the Recovery mode), but now im trying to do the same connection and i cant. I need to install some dependences in the Raspberry ? when i do a “dmesg” without the Listener and then with the Listener connect , i didnt see any changes.


solved !

My solution was “sudo chmod 666 /dev/ttyACM0”