eMMC not detected anymore -- Possible Bricked

[rvalvekar]

Hello !
Has anyone encounter an issue with emmc after a custom kernel installation, the system did not start anymore.
I tried erasing the emmc using the upgrade tool, but then after that, it basically is also not booting up from SD card. I have to upload the loader.bin file and the board then boots using SD Card.

When i check lsblk, i dont see the EMMC anymore.
Any help or support appreciated.
Thanks !

[martinchatgpt]

I also have same problem with different type. My R5C after use unbricking method described in wiki bricked and not either boot from SD nor eMMC. can any body guide me. I use RKDevTool for program eMMC from official images but not worked.