I’ve been doing mine on the online upgrade option direct to the car rather than using a usb stick.I was running the June 2025 build of the firmware/ software.
A few reasons for attempting an upgrade were:
1. There were some minor display bugs in the T7 style dash and I was hoping to see some improvements. E.g. fuel tank range not displaying in some views where you would expect it.
2. I'd read somewhere (probably on this forum) that they had come up with a fix / workaround to prevent you accidentally setting the speed warning. The fear of activating that usually stops me from interacting with the menu system.
3. Id recently had my van serviced and was getting a warning on the new cluster to say "Please check the connection of the wiring harness". But there were no new faults on any module which would be causing this. So I was hoping it was a software issue not reading a totally different message on the original cluster. After swapping back to my original cluster, I can see there was a new warning for Inspection due... seems they had reset the service interval but not the inspection interval. I assume this was the issue but can't test as its bricked...
I do have one glitch with the October update which is the fuel range keeps jumping from day 156 mile to 260 miles.
I thought the next upgrade would possibly correct this but may wait and have a chat with Antony before I jump in and do it