main.py been deleted for no reason

[codeblue]

Hi Team,

My code was in main.py , and it does machine.reset() a lot, and after a few resets, the main.py disappears for no reason. And boot_option has been reset to 1, which was 2.

May I know why?

M5Dial uiflow2 alpha 29

[codeblue]

oh, looks like when I hold the btnA when booting, it will erase main.py and set boot_option to 1, how can I disable this, since I don't want my customers trigger this.