Ok, thanks and I assume there's no way to go back to the MK3 and 5a without replacing the backplate and rewiring the socket?

Correct and to go back would be expensive since that needs an approved engineer

Dont forget William that an Openreach Engineer would have to change the master socket back to a 5a which they are unlikely to do.

Andrew has just said that, Tim.

Edited by deleted (Sat 21-Jul-18 08:32:27)

Assuming they had a 5a in their van. Can�t order them now.

I was just backing him up.

Ahh, I see!

Ok, I've just received a new 5C. I presume I can only transfer the lower section from the new to the fitted one, as on the fitted one the wires connected to the A & B terminals are already crimped?

Edited by deleted (Mon 23-Jul-18 16:30:02)

Crimped?

The new style sockets use tool less connectors i.e. lift plastic and insert wire and push down, so no crimping or IDC connectors.

Of course if you are changing the full master socket and you get things wrong and Openreach attend to fix a fault you created then they can charge you for the visit.

I've managed to change it without issue, was quite easy really.

There are still IDC terminations in there, it�s just that the plastic guide located and pushes the wires into place.... negating the need for a Krone tool.