New Raspberry Pi4 Bluetooth not working

[Bretze90]

Hi there guys,

I had a fully set up retropie on a Pi 4 and everything worked, unfortunately I broke that Pi while building a case for it. So I just bought another Pi, same 4gb Model like the broken one, put sd card in it and started up. Emulation Station booted, games were visible but my Bluetooth Controllers ( Nintendo Pro Controller and Joy Cons) didnt connect to the new Pi.
Thinking about it, this makes sense cause its a new Bluetooth Device the Controllers dont know, so i was trying to set up the Controllers in Bluetooth menu, but i couldnt, it was saying bluetooth is not active.
Because I didn't knew better and I had time i was setting up a complete new SD-Card with a fresh install of retropie. Now I am able to search for devices and I find my controllers, but I always get stuck after i choose the security mode. The Pi gets just stuck there. I see my choices and I can type and see the text on the botom of the screen but nothing happens.

I have a Pi4 4gb Model and running latest retropie 4.7.1

Update:
I got it working myself after searching the web for hours, and trying everything to get it to work, so maybe it helps for someone else
I got a "sap driver initialization failed" Message and this was the Solution

Still have no Idea why it worked perfectly on my other broken pi4 without having to edit anything.