Just did that. Most work was flashing the correct firmware onto the zigbee stick and now I have transferred almost all my Hue and Ikea lights. Except for those farthest way from the stick, they seem to be unable to join.
If anyone got a hint how to join these without moving the lights (screwed to the ceiling) or the stick (integrated in my server cabinet), I’d be grateful.
Me, after the latest iOS update slows my aging iPad by another 20%: 🤷♂️