The way you're asking the question is confusing. I see 3 questions in this.
- Can you enable a "disabled" port by forcing PoE though the switch.
- Can you PoE the console port?
Yes you can, will it do anything? Most likely not and you risk the chance of damaging the console port.
- I need a possibility to 'no shut' the disabled port again, without buying said power plug.
I honestly have no idea what this means. Are you trying to say you want to able to locked the port from being disabled again? What does that have anything to do with a power plug? Are you trying to power the device with PoE?
If you're trying to reset the unit, which to me is your best option, you should be able to using these step: