Hello there, I'm having a hard time connecting both a mouse and a keyboard via a USB Hub to my RK3188 based Hyundai Play X X900 using N90 ROM. I've tried with both self-powered and externally powered USB Hubs, but can't get it to work. I know USB OTG is ok because both the mouse and the keyboard works perfect when connected directly. I've downloaded the USB Info app and the tablet actually recognizes the USB Hub perfectly, but it doesn't recognize the devices connected to it. I know there's lot of Android MINI-PCs based on RK3188, and they kinda depend on the USB Hub, so i know there must be some kind of way to get it work. I have also tried the same setup (HUB - Mouse - Keyboard) with my other Hyundai tablets and they actually work perfectly. Anyone has been able to use your RK3188 based tablets with an USB Hub? Thanks a lot!