"Normally" blue smoke is engine oil being drawn into the combustion process, say valve guides leaking, piston rings leaking or any other form of engine oil getting into the cylinders.
Now turbo issues could cause oil to go into the combustion process, so the pipework issues may be involved.
Firmware upgrade on the ECU very very maybe could have an effect but the BCU, I can't see how as it has nothing to do with the engine/gearbox control whatsoever, as far as I know. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!
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