Perhaps I was still wrong in forming the topic and question.
After studying various topics, I found a way to flash a snapshot into emmc memory.
All stages of eMMC firmware were completed without problems. “Installation instructions for eMMC”
After the firmware I switched to eMMC memory, but only interface 192.168.1.1 was available to me.
Next, I turned off the R3 mini and switched to NAND memory, but hw still did not boot from nand.
fan spin
LED indications
ping, ssh, web - not available.
Now I’ve HW with emmc running with 192.168.1.1 interface available.
I don’t know how to restore the device’s operation and flash it fully onto a current snapshot.
Snapshot: (r26928-238aa35c49)
Questions:
are emmc and nand memory connected?
Why did nand become unavailable after updating emmc?
Using the “Installation instructions for NAND” instruction, it is not possible to execute commands; there are insufficient rights. How to flash nand in this case?