If it still fires it can be brought back to new performance standards. I have been
vaping for just over 5 months and I own at least 15 attys and I have only lost 1 and it wasn't due to dry burning. Also I use strictly dark tobacco flavors. There is a learning curve to dry burning. You want to rinse w water and dry out as much of the water b4 burning as possible, Then fire in short bursts, once it starts to get really hot let it sit for a few to cool. Sometimes it takes me a half hour of dry burning to bring an atty back, and thats after only like 1 week of
vaping on it. I dont use anny solvents or cleaners, nothing but straight tap water. First blow the atty out thru the threaded end, always the threaded only as that is the flow of air during normal use. Then rinse under warm tap water, blow again. Then start the dry burning. Eventually the goal is for the coil to turn white, and to be able to see all the wraps of the coil. If after burning for say 10 mins and your still not getting an orange glow, run it under the water again (after it cools). Blow again and start to burn again. If your carefull w burning you will never blow a coil, the worst thats going to happen is its going to take twice as long. Eventually you will get the feel for how long to apply current w/o doing damage. Thats the key, get it as hot as possible w/o over doing it and popping it. So basically rinse and repeat as many times as necessary until you have a nice red glowing coil, that turns whiteish when it cools off.