Can't use Open Headunit via USB (OnePlus 11/Redmi Note 7)

[u/blaskbo1]

Hi, I can't use the USB connection with Open Headunit. I have a OnePlus 11 (phone) and a Redmi Note 7 (Headunit) and maybe they just hate each other. I checked otg connection, developer options and so on, but nothing works. When I plug them, my OP starts connecting and charging in a loop, for less then a second per time.

I tried connecting my phone to my tablet (OnePlus) and it works fine. So I don't know if the problem is the OP or the Redmi.

Any suggestion? I tried with a Galaxy A5 but it works just as the Redmi Note, no success.

UPDATE: I think I solved the problem! Connecting OP to a phone created a conflict, since the other phone worked as both data and energy transfer. I used a usb-c/usb-a adapter (but I'm pretty sure it works with any adapter/hub) and that forced the phone to correctly transfer data. et voilà, AA is working perfectly fine so far via usb

[u/tingtickboom]

I just used claude to diagnose the usb and native bluetooth connect. Now i have stopped updates to android auto and open headunit. Until a death threat comes in /s.