扫描到了蓝牙键盘Air75 BT5.0：

配对不了蓝牙键盘= =

[
NEW
] Device E2:7C:4B:D1:3F:DA Air75 BT5.0

[bluetooth]# pair E2:7C:4B:D1:3F:DA
Attempting to pair with E2:7C:4B:D1:3F:DA
[
CHG
] Device E2:7C:4B:D1:3F:DA Connected: yes
Failed to pair: org.bluez.Error.ConnectionAttemptFailed
[
CHG
] Device E2:7C:4B:D1:3F:DA Connected: no

[
CHG
] Device E2:7C:4B:D1:3F:DA UUIDs: 00001812-0000-1000-8000-00805f9b34fb

已经试过了，小米手机可以和蓝牙键盘配对成功。

每配对一次，蓝牙键盘的蓝牙地址都会变。