[Solved] Problems upgrading firmware

I’m stuck trying to upgrading my firmware on the spark core. First of all is there somewhere I can check to see what firmware is installed on the spark? And what is the latest?

I keep getting the error:
Apparently I didn’t find a DFU device? util said Error writing firmware… no dfu device found.

I get this error after I type spark flash --factory tinker in the command prompt.

So far the spark is blinking yellow and found in device manager with util drivers as CORE DFU. Drivers are installed.

Thanks!