Question for anyone who knows-

I reflowed my xhp50 dedome from my ft03 onto my EC01 and vice versa- my ft03 is working fine but the ec01 LED isn’t turning on. This made me think I had put the wires on the opposite sides of the mcpcb so I switched the mcpcb around and soldered and when I turned on the driver smoked. I turned off immediately. Does this mean the driver is now bad? Any reason why my led may not be turning on? I made sure the orientation was OK with the led and board before I reflowed… maybe contamination (I used the existing solder on the led/mcpcb as that worked for my ft03). I don’t know this is probably very confusing to read, but just seeing if anyone has any thoughts. My ft03 is working fine.