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.
@I'm from Russia. and I apologize for my English. I am writing on this forum through a translator. I can't display a picture either. I work at UiFlow2 . I tried changing PNG formats to JPEG. There is no image. The image itself is 16*16pxl. I do my work with ATOM 3S.
mukul_100_