Appreciate that, Nicolas, but I was referring to the language change process using a Resler cable and Navcoder. You said then that " ... it will ask for the firmware CD for the satnav language change, and you can't use BMW ones on a Rover unit, you need the specific Rover CD.".
I infer from that, that the CD asked for is not the same as the BMW V.32 (copied) CD I used simply to update my (English language) Mk.IV firmware level for running 2019 maps DVDs therefore?
David
Well the MkIV IS a BMW unit, so yes you would need a BMW firmware CD, that is V32, to change its languages. You'd need a Rover CD only for the Rover MkIII units that were factory-fit on our cars...
1999 2.5 V6 Rover 75 Connoisseur - Dealer Launch - LHD
2004 4.6 V8 MG ZT-T (the only known auto ZT-T V8) - LHD
1993 2.7 V6 Rover 827 Coupé - LHD
1993 Rover 216 GSi
1975 Rover P6 3500