Most of it has come from RMI.MGmotor.eu
R46 came from a member that got the update from MG & they left the USB stick in the car (on page 153), which has happened again with R59 so hoping to have that as well soon (
Issue with AC charging/New CCU fitted (Phase One SE LR))
Unfortunately no one has been so lucky on a SE as far as I know
If we could find how to access USB based updates or a friendly tech that's willing to share that would be great but until that time we're stuck with whats left in cars