Sorry for not replying earlier, was not able. At the end I install everything again after I saw that when booting from the SD card, I had again access to the helios. Then I copied to the emmc overriding the previous installation and installed everything again. I use the 1G Ethernet and I also tried the 2.5G with no change. The system led was blinking normally but the lan led was fixed.
I meant usb-c serial console, I could connect but after the login there was no IP.
Thank you for the help