OK, you said on the duplicate thread that the light was on. If no sport button working (if you have one), then it's the ECU failed on the EPS motor.
If you have a code reader it won't be able to see the EPS ECU any more, so there'll be no codes.
You'll need the motor out and sent off to ECUTesting for a repair with lifetime warranty (£295), which will be back with you within a week. Or you can gamble and buy a secondhand motor.
Is this something you would be able to fix yourself? If not, then where are you? I'm not averse to travelling a reasonable distance to help out.