Watched temperature development by reading cat /sys/class/thermal/thermal_zone0/temp every 5 seconds. Highest value before freezing again was 60000, so 60°C. I think that should be in normal range?
Yes, up to 90°C is an expected range.
Then the culprit must be somewhere else.
Does the device respond to ping after being unresponsive?
Unfortunately, not.
Also tried to get any response with a connected USB keyboard, but that didn’t work either.
Will do so.
Anyway, I thank you all for your time and help so far.
Best regards, Hans