Hello im very pleased with my Dudu7 radio but got two more problems.
1) Slow 4G speed : on previous head unit ive got the same 4G simcard and i got decent speed bit on dudu7 i got only 0,7 mb on good signal area ( i got fastest provider in country)
2) Usb pendrive problem : i got half music on pendrive plugged on usb C when im not listening music from this pendrive after a while its just invisible in android. Is there an option to turn usb always on?