they can run a baby board, but they shouldn't, and it can damage the ecu in the long term.

I see quite a few P8 ecus that have had baby boards fitted, and 1 in 10 has the adaptive rom damaged so the ecu will not correctly work.

From factory they don't have a board fitted and we don't use them with our software.

We think its something to do with the refresh rate of the adaptive rom ,and they seem to refresh to quickly when the board is fitted damaging the rom, sometimes you cannot reset them as the actual rom gets damaged.