@pmdci

One thing that Iv'e read should improve (some)things is editing this file,

sudo nano /etc/systemd/system/bluetooth.target.wants/bluetooth.service

look for a line like the following and make it like below.
(maybe make a backup copy of the file first if you want)

ExecStart=/usr/lib/bluetooth/bluetoothd --noplugin=sap

Iv'e been messing around with RPi4 bluetooth and my DS4 controllers recently and that is now part of my setup steps.

Please add more info about your setup, as detailed in https://retropie.org.uk/forum/topic/3/read-this-first.

Use the Android mode to pair the controller and do the configuration in EmulationStation in this mode. What games/emulators are not working with the gamepad ? Did you install other drivers from RetroPie-Setup ?

Can you post a verbose log from running the emulator (on pastebin.com) ?

The pastebin link is ok; the error Bluetooth messages seem to be the only ones available (no detection info), but they don't provide any indication where the fault is, unfortunately.

Hi guys.

Thank you very much for your help. Finally, I could configure the 8bitdo m30 bluetooth gamepad for Retropie 4.6 but I have a problem. I need to configure the gamepad everytime I turn on the Raspberry Pi 4 model b with 2 GB because I can't pair the gamepad with Retropie when I turn on the Pi.

I test several buttoms configurations: "Start" 2 seconds + "Select" 3 seconds, "Start" 2 seconds + "Pair" 3 seconds,... but it didn't function at all. There is any special buttom combination that I should press to pair my gamepad with Retropie when I turn on the Pi?

Kind regards.

Thanks for the info.

Very likely, it wouldn't be ideal for serious gaming. Maybe only for emulation with rewind enabled :P

Thank you @seanbeedelicious ! Works like a charm.

@melbmatt50 I've had luck with this method as recently as this week: https://github.com/RetroPie/RetroPie-Setup/wiki/Bluetooth-Controller

@mitu i can't

Apologies I've remedied the issue now by updating Retropie :)

Out of interest how do I set the Bluetooth Snes pad to player 2 and my wired Buffalo pad to player 1? Many thanks