What Bootloader Shell commands I can use?

You can use the following bootloader shell commands:

CLS1 help | status

This command prints help or status information.

BL help

This command prints help information.

BL status

This command shows the application flash range, and the content of the application vector table.

BL erase

This command erases the application flash blocks.

BL restart

This command restarts the user application (if any) with jump to the reset vector.

BL load s19

This command loads the S19 file.