I purchased the “CARPLAY WIRELESS ADAPTER FOR FACTORY CARPLAY VW Audi Volvo RCD330 PLUS Noname 187B”. Can its firmware be updated for better operation?
If your Wireless carplay dongle is not malfunctioning and not working, I do not recommend that you upgrade this dongle. The dongle itself does not have any complex functions, it is only a hardware responsible for wireless communication. Whether a wireless car play dongle is good or bad depends on its hardware cost. So almost the functionality of the carplay has nothing to do with the firmware of the dongle.