All, the dreaded Focus Error is a real piss off, a quick albeit interim solution is three quick taps on the mode button on your steering wheel controls. It does not fix the issue but provides a quick reset and seems to interrupt whatever the sequence of one and zeros are that cause the problem. It might be just me - but it seems like this also reduces the occurrences of the error. It would be interesting to see how this works for larger sample than just me.
Cheers,
GF
