I was amending the address of the loco from 2 digit to 4 digit addressing, all seemed to be ok but when I went to try the loco on the main track nothing.
I put the loco back on the programming track and tried to read the address back and now it comes up with 'Error reported by digital system: No acknowledge from decoder'.
I am using Roco Z21 and programming via RR&Co train Programmer.
Any help would be appreciated, even if it's to tell me where in the UK I could get it repaired.
It was bought in Germany whilst on holiday over a year ago so out of warranty.