Trouble uploading new firmware

so im having some problems updating my spark core, I’ve gone down the road of using cmd prompt and getting to the point of dfu-util -l

"Copyright 2005-2008 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2012 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to

Found DFU: [1d50:607f] devnum=0, cfg=1, intf=0, alt=0, name="@Internal Flash  /0
Found DFU: [1d50:607f] devnum=0, cfg=1, intf=0, alt=1, name="@SPI Flash : SST25x

how do I go from here to installing spark-cli. I have tried a few of the tutorials but cannot work out how to get past this stage.

if anyone could help that would be great

Please paste code in the forum with this format:

``` <-- insert this

//paste code here

``` <-- insert this

You can use the command spark flash --usb xxxx.bin but might want to consider upgrading to the newer particle-cli