Hello, I did a test again.
Within installer, there is no ethernet card detected. Attached, there is the complete Log from U-Boot to start of the installer. I assume, there is something wrong with the AXP-regulator. There is the message some times: >> sun8i-a83t-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pb not found, >> using dummy regulator << If i can do some tests, please let me know. Thank you for the great support. Best regards Bernhard