How to erase M5Stick-C completely?



  • I have a M5Stick-C and played around with it a while. I flashed it with UI Flow 1.7.2 and tried to flash with 1.4.5 after that. It doesn't work I get the message that it doesn't have enough memory. Even the Sketch "Factory Test" isn't flashable using Arduino IDE: Not enough memory! I tried to erase the chip with M5Burner 2.2.4 and got the following message:

    Erase now

    esptool.py v2.5.0
    Serial port /dev/tty.usbserial-FD51B432F3
    Connecting....
    Detecting chip type... ESP32
    Chip is ESP32-PICO-D4 (revision 1)
    Features: WiFi, BT, Dual Core, 240MHz, Embedded Flash, VRef calibration in efuse
    MAC: 24:a1:60:54:44:dc
    Uploading stub...
    Running stub...
    Stub running...
    Erasing flash (this may take a while)...
    Chip erase completed successfully in 2.0s
    Hard resetting via RTS pin...

    Erase Successfully

    It seems to be ok but the result is as before. How can I erase the chip COMPLETELY?