Now, during the holidays, I had some time to start solving my problem with the OVMS development environment again, since the basic ESP 3 is EOL, so it doesn't work, but luckily I managed to find a solution. (https://github.com/espressif/esp-idf/issues/14809))
The car with the OVMS is an ioniq 28kwh
I noticed that the car's 12V battery was very low. the last time I went, the ovms froze while charging, it read 78% all the time, and I already drove 100 km with it. I didn't bother with it, but I noticed that the 12V battery was not charged, then I looked at it and there were no can messages. I restarted it and then the dive started again.
My other problem is that no matter how many times I try to put another firmware on it via Wi-Fi, it won't start, I have to unplug it and plug it back in.
Could you give me some advice on where I should go in troubleshooting?