Best posts made by ps.oz

I have a Core2. Mine was bricked - USB sounded when disconnecting in Windows 10. Only got it brand new yesterday and was using UIFlow, tried everything. In Arduino it could send to COM4 but then still black screen, still no reset. Then someone above said use M5Burner. Eventually reflashed the Core2FactoryTest app and wahey - green light and a beep and now everything works again. I'm adding this comment as I'm a techie for 35 years and if I run into problems like this I'm sure others will with less success.