I have tried to update the Pluto SDR FW from version 0.21 to latest (0.22) copying the pluto.frm fw file to the mass storage and ejecting the mass storage. According to the docs the procedure should last few minutes and the mass storage should reappear when the fw update has been completes. In my case it is more than half an hour that procedure is running with LED1 blinking twice rapidly then about one second off and so on.
What is happening? (My OS is windows 10)