I tried to change the coil in my kangertech subvod (SSOCC coil) the other day but I think something went wrong? Ever since I tried to change it, it doesn't turn on. When I press the button it blinks the way it does when it's out of battery life but I know for a fact it is charged. I took it into my local vape shop to see if they could help but said they weren't allowed to troubleshoot. Any suggestions to get it working again?