Connect a battery charger to the cars 12V battery for the duration of the flashing.
So the OUG1 software update is for the telematic OCU unit which you will find behind the AID display. It updates the software to 144.
Has nothing to do with the infotainment system…
Thanks, much simpler than I thought, was expecting some secret charging port! Just brought a cheap plug in one from Amazon and will give it a go
So do I... so 1941 does not prevent updates from downloadingGot my OUG1 update in UK today, took a while to download then installed while car was locked.