HP15c CE POGO programming cable

[ctrclckws]

Does the cable come with instructions on its use, for those that never had access to such things in the past?

Specific questions.
I believe you need to download the current ROM, modify a few bytes to correct the 16C emulation, and then resend the updated ROM back to the calculator.

Is there a sheet documenting these items?

Have the pre-orders been sent out?

Could you take the downloaded ROM and update a recent 12C to 15C software? (Curious question)

Greatly appreciate the home-grown efforts also.