@MattWestBThank you for your time.
I attachboard photos, it's a X88 Pro 10 android-box. I can read on the second photo, under the sticker, X88 PRO B RK3318 D4 V1 2 so I chose X88 PRO B config, but it won't work neither bluetooth or wifi (at least if I chose SP6330 in armbian-config I have an output to that grep).
I look at the overlays and it should be loading the config (the last one is rk3318-box-wlan-ap66330, the one added by armbian-config).
I might be missing something, I feel quite clueless.
Thank you very much. Yes it did. After creating the symbolic link, Bluetooth is now working successfully and I am able to pair and connect to my Airpods.