Hi ! First, thanks a lot for all your hard work So, I recently received the Wismec V200 and hoped to get one with the "old" chipset, but ... got the stm32 ... The thing is ; I can't update it with Wismec's tool, or put your latest firmware. I tried : - With or without batteries - Through various USB ports with various cables - Turning Off the device before/after it's plugged to the PC - App launched in Administrator Mode - Updated every bit of drivers for my motherboard (2018's ASRock Z370 Extreme4) - Redone the process on four other Eleaf devices (back and forth between Eleaf's and ArcticFox's firmwares still works fine) - .... Whenever I plug the Wismec V200, I see it as "USB Input Device - Driver error" or "HID-compliant device" in the peripherals (not consistant). Two Eleaf Invoke, Eleaf Pico Squeeze 2 and Eleaf TC100W are all showing up as "HID Transfer" in that same menu. This V200 shows up with its proper name within Wismec's software and ArcticFox's update module. Selecting the new firmware makes the device disappear with the typical Windows sound. Pressing the Minus button on the device makes it show up again, along with Windows' sound/notification. Other than that, the device itself works just as "good" as expected (faulty TC mode that goes back to 1 watt when asked to be used on a barely more complex SS build ... typical) My computer has obvious trouble properly detecting this particular device, so it's not your software's fault at all. But, I suppose some of you may know of a solution .. ?