Let me flash that firmware and I will check. Back in a few minutes. Are you running the Latest Khadas Pie firmware VIM3_Pie_V190809?
@Electr1 It paired with my Bluetooth speaker within 3-5 seconds. However, I could not get either of my phones to see the VIM3.
@Electr1 I flashed the custom Android Pie ROM from superceleron, Final V2. Was able to pair a Bluetooth speaker, and both of my phones. Though I could only send files to the phones, not send files from the phones to the VIM3.
Maybe @goenjoy can explain.