Definitely sounds like you popped the coil.
Dry burning at 4.8 volts is very risky, as you've found out.
I never dry burn any higher than 3.7 volts, and I have never popped a coil in over three years of dry burning.
Also, at 3.7 volts I don't have to worry about "pulsing" either.
Yeah, it's dead and gone. Feel like having a little service for it; you are all invited.
Must have missed the info on the 3.7 volts. Thought I read everything carefully. But nothing would get that nasty taste and black stuff off the atty. So I tried the dry burn. Is there a list somewhere of what kind of juices that will muck up an atty? I am so new to this I have no idea. Even when ordering a juice from a vendor, I have no way of knowing if it will be dark or light. I think I read somewhere high VG juices aren't good for an atty, but I may have misunderstood. Do I have to just blow through attys to figure this out? I will figure this out somehow. Just thought I would come right to the pros. Don't know where else to learn more about this. Read Ocelot's blog on dripping, too.
Thanks for your help. I am sure I will be back soon with more questions.