My dna 30 box mod is reading"too hot". After unscrewing an atty i saw that my 510 connector came out it housing. When I opened up my mod I saw that the negative wire snapped off from the 510 connector. I took out the batteries and let the mod sit for two days and then re solder the negative wire back to the 510 connector and put the batteries back in and it's still reading "too hot" . This device is running on two 18650's all wires are 20 gauge and seemed to be well built except for that 510 connector. Need all the input I can from you guys I just hope my board isn't fried :-(