First of all, I have the following items I purchased from aliexpress.com:
Using the SmartRF04EB and the downloader cable, I programmed the ZigBee dongle with CC2531ZNP-Pro-Secure_LinkKeyJoin.hex. I then plugged the ZigBee Dongle into my RPi3 that is running OH2. Then I installed and configured the ZigBee Binding to use the new ZigBee dongle.
I then reset my Tradfri bulb by cycling power to the bulb six times in rapid succession. I then used HABmin to discover the bulb.
The newly discovered bulb was indicated at the upper right corner of the HABmin window.
I then clicked on the New Things icon.
[In this case, I didn’t have a spare Tradfri bulb (the Tradfri bulbs shown in the screen capture are manually configured Tradfri Binding things), so I used a SengLED Element bulb here.] I then clicked the Add button and configured the bulb.
I recommend you read through the ZigBee binding posts.
Hope this helps and good luck!