it resetted itself and asked for the OS firmware, uploaded and its working like new again, thank you. so thinking without going further making unecessary damage, have faith pushing the red button and plug.
several usb unplug-plug windows restart, change usb ports did not help, opening and brush cleaning the pcb/components did not help, checking all seems ok. otoh i have pickit2 that just seemed to break last night, had it for several years now. however, you are welcome to review either of them here so others get warned. similarly if you buy original and it breaks, goto microchip. if you buy clone and it breaks next month (even though it can do all of the original functionalities) dont come and mourn to us, go to the seller and shout however you like. which one is the clone out of thousands? we dont know. maybe yes maybe not to all the questions. is it multitasking hatred or a nostalgia i'm not sure.