ESP8266 Community Forum

- Mon Nov 29, 2021 12:03 pm #92943 Hello everyone!

I am facing one peculiar type of problem with newly purchased wemos d1 mini. Before my last stocks of wemos d1 mini inventory ran out everything was working fine with our loT based codes. But these new purchased wemos d1 mini seems to have problem with exactly same codes. Mainly they are giving exception 0 and 4.

If this manufacturing problem or I am missing anything?

I am using arduino IDE.

Thanks for your time.

- Fri Dec 03, 2021 3:43 am #92979 try to clear the flash with esptool, then upload your firmware

- Mon Dec 06, 2021 6:34 am #93007 Can you upload basic codes in it? Like blinking etc.?