I should add: after I upgraded to 1.2.5 via the web interface with the .bin file, I was *then* able to successfully upgrade to 1.2.6 Build 20230518 Rel. 60781, via the mobile app. This time there...

@nickbg321 thanks for that tip, which led me to being able to upload 1.2.5 Build 20230511 Ref 67294 (US version, which seems to be what is available for AU consumers such as myself) The 1.2.6 I don't...

I have the same issue (and same model) as @nickbg321 - this is my first set of Decos, X55 bought today. They are on firmware 1.0.8 Build 20220407 Rel. 69584 I get prompted to step through the upgrade...