your steps are not that correct and i’m not sure where you get the instructions from.
So for an old core,
-
Install particle-cli
-
Run
particle flash --factory tinker -
Run
particle flash --usb cc3000(it will blink magenta and eventually revert to blinking yellow) -
Run
particle flash --usb tinker -
Run
particle serial wifi
Hope this helps for the people stumbling over this. Also changed your topic title to reflect the issue better!