port 1 not responding to the program

The ports one and ten should work with the 393 two-wire motor, but only port 10 responds to the program and port 1 does not work. any help?

Hello praveen,

The first thing you should try is downloading Default Code onto your Cortex. If Motor Port 1 still does not respond, it is possible this port is damaged and you should call the VEX support line at +1-903-453-0802 or send an email with your order number and a description of this problem to support@vexrobotics.com.