The manual firmware flash process is very similar to the open mesh process:
Please note that if you are flashing an Open Mesh Access Point with the Plasma Cloud firmware for the first time, you may need to "unlock" it first. This is because all devices equipped with a 5GHz radio are locked due to FCC regulations. If you are outside of FCC regulated countries (i.e. USA and Canada), you can simply follow our migration guide (How do I migrate my CloudTrax network to Plasma Cloud?).