Hi I'm using a elink think I'm finally getting somewhere got my flying scotsman to work and changed the loco id, the class 47 which came with the majestic set is working but wouldn't work on a different id so read the cv,s and worked fine on the original id but struggling with my new shunter won't do anything and won't read any cvs just comes up error reading got a feeling its a faulty loco coz there was a screw lose in the box from the bottom also the other screws were loose any ideas please on what to try next