• Ok, I found out that every retry added approx. 1% of the firmware, so I had to retry approx. 100x in order to get everything sent to my device~~ - at least, it claimed so, but my firmware is still the old one.~~

    Correction: no, it did update my firmware, I just looked at the wrong place. The best place to see the current firmware version is in the Web IDE console after connecting to the watch