Is the device currently , or are you just looking to upgrade ?
Since the RK3128 is used in hundreds of generic "white-label" devices, there isn't a single universal firmware. Always check the printed inside the casing and match it with the firmware version to ensure the screen and buttons function correctly. rk3128 android 90 firmware portable
Portable firmware lacks universal WiFi drivers. If your WiFi doesn't work: Is the device currently , or are you just looking to upgrade