I have an older PX3 unit (i think, it's a rockchip rk3188 + 1gb ram, made by Joying) I'd like to upgrade. I've found a PX5 board: https://www.aliexpress.com/item/32820356300.html and have been reading stories about BT/WIFI not working. I'm handy with a soldering iron, so I can potentially...