The generic Windows driver cannot activate the dual-rumble motors inside the Ucom UC-JS704S2. To make the controller vibrate during gameplay, you must install the proprietary Ucom/Twin USB Joystick driver. 2. Where to Safely Download the Driver
Navigate to (or Hardware and Sound > Game Controllers ). Ucom Uc Js704s2 Usb Joystick Driver Win 7 Download
Because Ucom does not host a centralized, active customer-facing driver portal, getting your joystick to function requires specific alternative driver sources. 1. Windows Native / Windows Update Delivery The generic Windows driver cannot activate the dual-rumble
: Plug the USB cable into your computer while holding down the active customer-facing driver portal