Touchscreen work around

I got my comgrow t500 today and it powers up but the touchscreen is unresponsive no matter where i touch. Does anyone know of a work around like using another klipper pad or way to control the t500 without the pad? Would a sonic pad work? Is there a way to plug into the usb on the touchscreen with something and control it? Do any of you know a work around or have a touchscreen to get rid of?