@oyyodams
After i updated the controller, i tried to connect him with the recalbox and it does not work, I'll tried the trick you told me with reseting it to default connected my Xbox controller for setup the Bluetooth connection, i erased the old connection to avoid problems. But it does not work anymore =(
With cable connection everything is fine.
@oyyodams
After a firmware update on the nes30 pro, and reseting the controller like you said everything works fine.
But now I can't use it with Bluetooth anymore...
but that's just fine I'm just happy to use the nes30 finally.
Hello i will get this Topic stray to the point.
I bought a Nes30 Pro controller for my Raspberry PI3 in combination with Recalbox everything works fine the connection with Bluetooth the respond.
My Problem is i can´t Configure the Buttons i´ll tried it a 100th time, all buttons set try to press A to continue and nothing happens..... Only B Works and everything is back to basic....( I can´t even quit a game with this game-pad because the there is no Hotbutton set)
I tested the controller on my PC and Smartphone all Buttons work Fine.
Thank you @OyyoDams for Helping me out with this issue 
(Sorry if my english isn´t that good i´m not a native english Speaker)
Hallo ich bin neu in diesem Forum und habe auch eine frage bezüglich des controllers.
Ich kann ihn zwar mit meinem Raspbeery verbinden ohne Probleme aber lassen sich die tasten nicht Konfigurieren...
Kann diese Einstellungen 1000 mal durchgehen am ende kann ich drücken was ich will es wird einfach nicht übernommen , der A Knopf funktioniert am PC alles kein Problem aber wehe der Contoller ist am Raspbeery.