How do I erase the complete flash of a esp32 cam module?

[Temp (Gast)]

Hello,
Sorr, that I ask this but I haven't Found anything about how can I erase 
the complete flash of my esp32 modul to have a complete deleted esp32 
modul? To avoid errors?

[Dennis H. (c-logic)]

It's possible with esptool.py
esptool.py --port /dev/ttyUSB0 erase_flash
you can delete the complete (Q)SPI-FlashROM-IC.
the esp32 has a small ROM, thats load the bootstrap (or bootloader) etc. 
from this (Q)SPI-FlashROM-IC.
"erase_flash         Perform Chip Erase on SPI flash"