Mod is getting hot and burn the PCB after turning on
If it's still within 6 months warranty, you can ask for warranty from the store where you purchased it/SMOK US warranty center(if you are in the US)/us (submite a claim at :https://www.smoktech.com/sign-in?r=/after-sales/channel).Thanks for your feedback.
Please check if the LED setting is on.Thanks for your feedback.
Please try to upgrade again according to the instruction or try other cable to upgrade.
If you can't find the firmware （https://www.smoktech.com/faq-list?category_id=5） to upgrade your mod at our website, then your mod doesn't have to update. If there is something wrong with your mod but can't be solved through troubleshooting, please pick "N (Contact us)" and submit a warranty claim to get help.Thanks for your feedback.