Vapealone, I don't want you to vape alone, so I'll be your first responder... I had a mod that had nearly identical symptoms not long ago. I understand that you know it's a blown fuse, and I understand that you are mostly concerned about the USB's ability to still somehow provide power after such an incident, but I want to save you possible future woes with your mod, specifically your LiPo pack. When I sent my mod in for examination/repair I was told it was indeed a blown fuse. I was vaping closer to 1am, I was a bit tired, so as soon as it quick working I knew I better jot down my thoughts before heading off to bed for fear of not being able to remember any pertinent details the next morning. Here is what I jotted down: 1. Just took it off the charger from full around 5 minutes before it went dead.2. I had taken around 20 hits off of it before it went dead.3. Around 2 hits before it went dead, I looked at the battery charge - it read 98%.4. After it wouldnât respond to any button combination, I plugged it into a 1 amp charger. It went through the boot screens. After booting, battery percentage immediately read 92%, 6% different from just a 30 seconds earlier - weird.5. Whilst plugged in I noticed my previously solid .12 build now reads .15 ohms.6. When I hold the FIRE button whilst plugged in it shows the live-wattage reading only below 10 and immediately reads "OHMS TOO HIGH.â I inspected my build, it looks solid. No touching the posts and the screws are tight.7. When I unplug from any sort of power, it turns off instantly and still does not respond to button clicks of any sort.8. My build is a single-coil .12 Ni200.9. My settings while vaping were temp-limited 500°F, 75W. Notice numbers 3 and 4. I am curious if you noticed anything like this in your own mod between when it quit and when you plugged it into a charging source. The important information I want to warn you about was after a two-day journey to my modder via USPS, the battery was checked with a multimeter and one of the cells was reading 0v. Now, this could have happened as a result of plugging into a charging source after the fuse had blown. Either way, were I you I'd limit any plugging into power after the fuse has blown. I can't answer either of your specific questions though no matter how much I'd love to help. From my perspective (consumer/enthusiast/lurker) it seems like John and Brandon and the whole Evolv team have enough problematic mods on-hand to be able to replicate common issues and collect useful data. This should lead to a fix, or at least to more-detailed information for modders and end-users.