How do I recover from map update interruption?

[rkm_hm]

My TomTom Via135 came with Western Europe maps with free lifetime updates.

I also purchased an Australia map with 12 months of updates when I visited Australia recently.

I have a lifetime subscription to PocketGPSWorld speed cameras.

A few days ago, I decided to update the speed cameras because I was planning to go on an unfamiliar journey. [I don't apply EVERY update].

When I connected the device to my computer, MyDrive Connect told me that a map update was available. I thought I might as well update the map as well as the speed cameras. Only when the update had started did it tell me that it was going to take SIX HOURS. [I'm away from my main home and currently have a slowish (about 5Mbps) internet connection].

I didn't wish to proceed with this, but couldn't find any official way of aborting it, so I disconnected t it - YES, I know you're not supposed to do that, etc., but what else can you do?

To my dismay, the Via135 then denied all knowledge of a Europe map. I could go anywhere I liked as long as it was in Australia!

I've made several attempts to recover from this by re-starting to update process - including clicking on the 'Repair' option on a couple of occasions when it said my map was corrupted.

Every time, it goes through the motions of updating, saying it is going to take about 6 hours. Every time, it runs for about five and a half hours and gets to about 80% and then stops with a message saying "Something has gone wrong" or "Connection to server lost" etc. (not exactly the same every time - but always the same result, offering me only the Australia map.

Anyone come across this sort of thing? What am I supposed to do now? If a 6 hour update process can't be interrupted without bricking it, it's not fit for purpose! What if there's a power cut during an update? My expectation is that it would download the map to my PC and THEN transfer it to the device, without disturbing the status quo until the second part. It looks like it's not like that?

Any helpful suggestions will be gratefully received.
_________________
Roger
TomTom via135

Satmap Active 10+ v1.50 with full UK 1:50k map and 1:25k/1:10k County maps of Hampshire & Warwickshire

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