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« on: June 13, 2016, 03:42:48 pm »
I've been down this road, and like you, I tried a bunch of old sticks. Age isn't important, how much current the stick tells the OS it needs is what is important. I had some sticks that only drew 83mA but they told the OS they needed 200mA. And they didn't work. I had to check each stick using Windows Device Manager. I had to poke through the USB section looking at the hubs and gateways to see which one was driving my stick (my PC had 2). Go to the Power tab to see how much power is being asked by the devices. I would look at the screen as I plugged in the stick to see if something was added to the list. I finally found one that listed less than 100mA. Voila! That one stick worked. You can tell when the green LED stays lit for over 4 seconds as the firmware is downloaded and installed.