Restore to factory firmware

[jbonest]

I flashed micropython on esp32. I am wondering what is necessary to restore to factory. Do I just erase flash.? Is the a default bin file? Thanks for your help.

[ESP_Sprite]

There's not really something like 'factory firmware' from Espressif . If you want to use the ESP32 for a different project, it's sufficient to simply flash that on top of your current MicroPython install. If you want to be sure (sometimes settings can be kept, and that may not be what you want) you can erase the flash beforehand.