I just finished purchasing language change for a 2006 Volvo V50 2.0d.
Payment confirmed
Car connected to charger
Laptop with LTE SIM card connection with very good and fast internet signal
Tried to do it 3 times and all the time got the error...
I was told theres no need for PIN unlock, so what can this be?
Your car is a very ordinary one. It may happen that a DiCE is faulty (although selftest is passed).
Try with other DiCE, other USB cable or other PC. Usually is it a Chinese clone DiCE failing that way.
VIN YV1MW754162XXXXXX
Model V50
Year 2006
This car was only connected to the question.
However, this is not a condition that this question and answer can only be applied to this car.