If you want to get this Yocan oil vape mod, please visit Yocan.com
If you don't know how to use Yocan UNI Pro, please refer to this video.
How to pick out the adapter from the UNI Pro chamber?
I recommend you insert a cartridge into the chamber and very gently but carefully try to thread the cartridge onto the stuck adapter - if this doesn't work
Feel free to open up the adjustment knob all the way, find a soft surface (like a couch or bed), turn the device upside down and proceed to aggressively hot the device against the cushion. The force should be enough to overcome the magnet briefly and allow it to fall out.
Lastly you can apply a very sticky substance to something like a q-tip, and use that to pull it out.