just as the title states, my one plus cascade wont fire with the 0.3 ohm ccell coils. the fire button just flashes green. is there anything i can do to fix it?
3 flashes indicates no Atomizer. This means the device cannot detect the coil. The coil is either bad, or not making contact with the positive pin.
Are you positive you are using a Cascade tank? The Cascade Baby SE that comes with the Cascade One Plus requires the coils to be screwed in, not pressed in. Perhaps take a picture instead of everyone trying to guess.