I’ve had a LimeSDR USB board for some time now and all seemed fine until recently it wouldn’t power up when connected to my computer (the same USB3 port that used to work previously). No LEDs blinking on the LimeSDR, board not found on PC.
Then I’ve checked my LimeSDR when connected to an external power adapter (12V) that I’ve used previously with this board and computer and… Surprise - the LEDs started blinking on the LimeSDR!
But when I’ve tried connecting the LimeSDR and external power to my laptop - everything goes dark (e.g. my laptop actually shuts down totally!).
Not sure what happened, as everything used to work absolutely fine in this exact configuration (laptop, LimeSDR and external power adapter).
What do I need to do to be able to use my LimeSDR again?