@Bkg2k
Thanks a lot to all dev team and to Bkg2k.
Board : XU4
Image : Feb 2019
Micro SD card
No USB Stock
Pad a : Wired GameStop PS4 Fun Controller
BT Controller : CSL - V4.0 USB nano Adaptateur Bluetooth avec DEL Class 4.0
Pad b : 8bitdo SF30 Pro
Archive support if can help : https://file.ac/CwR70QzkxB0/
Issues with BT on 8bitdo pad.
On the 1st boot, very difficult. So I clear and reset all BT connection on XU4, reset the pad. Then I reboot the XU4.
I manage to pair the 8bitdo with ES. So I remapp all controls boutons.
After a re start of Xu4, I start my 8bitdo controller with "B+Start"
I received a viration on the pad and the led stop flasing.
But unfortunatly no control boutonsn works ...
I will try using 'Méthode 2b' with bluetoothctl explained here
https://forum.recalbox.com/topic/13471/odroid-xu4-8bitdo-sn30-pro-probleme-avec-bt
Sorry
Issue solved with using correct driver 'BLUEZ 5' and not 'OFFICIAL'
Please disregard this message