I just got my second V519 since last one got stolen. The first one I had to upgrade before it worked at all, as I hade found in comments on internet. This one seems to have a problem upgrading. First of all, what is the latest firmware for it? It says I have V1.00.231120 in the settings. The upgrade tool I used last time says V1.0.20231025 in the title, so it looks like the update tool is older? I also downloaded a new one from your website, it says 1.0.20240705. But whichever I use and press start update, nothing happens except the process starts using 8-12% CPU. As the instruction say, if it doesn''t start i should try with holding the I/M (F2) button when inserting the USB-cable. I have tried that, but the unit does not start in some other mode. It just starts and presenting the 6 regular icons.