Hi guys I have a innokin coolfire iV tc100 thats giving me a check atomizer message. even when the atomizer is not attached to the box. i cleaned the connections with alcohol and q-tip and got rid of the gunk in it and it still wont work..I have dropped it twice on hard concrete from about 1 foot height( which is what i fear may be wrong with it) but any other reason why I would get this message? Thanks.