Can't pair Broadlink RM3 Mini

First of all, 2 versions exists, the so called black bean and red bean.
If you use the official app, and an error occors while pairing with Homey, you most likely have the red bean.
There’s an app for that version here:
https://store.homey.community/app/com.broadlinkrednode

Device configuration
The devices need to be configured before they can be paired with Homey.
Configuration is done using the app from Broadlink.

The device should be disconnected from the cloud, otherwise Homey cannot access the device!

Hold the reset button 5s on your broadlink device until the (blue) light flashes

In the Broadlink app (iOS / Android) Go through the “Add Device” steps

When you reach the step to add the device to a room - quit the app

When you reach the step to add the device to a room - quit the app

When you reach the step to add the device to a room - quit the app

Pairing
You can pair a Broadlink device the same way other devices are added to Homey.
You will need the IP address of your device in order to pair it.
This can usually be retrieved from
your WiFi router.
For good performance, give the device a static IP address

Usage

Once a RM-Mini is connected, it can start learning commands.
This is done by pressing the ‘learn’ button (for IR or RF) in the mobile card of the paired device.
On the device, a LED will turn on indicating it is in learning mode, and you can press a button on
a IR/RF Remote control.
The command will be added to the device settings in Homey. In the device settings menu, you can
give the command a more logical name, or delete it by clearing its name.
Currently 20 to 30 commands are supported in the settings page of each device.
It is not possible at this moment to change the order of the commands in the settings page.

** Using learned commands**
InfraRed commands can now be used in an identical way.
All commands the RM has learned, are available only in flows.
When creating a flow, you can use the command (or any command) as a trigger
to start the flow.
In the ‘then’ part, you can select your RM device, and select the
command from the list of available commands.

If you like to use a button to send a command, you can create a Virtual Device,
which can trigger (start) a flow (as described above).