Annex: cannot flash ESP32

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Joined: Sat Aug 03, 2019 7:47 pm

Annex: cannot flash ESP32

Postby ephvwhvw » Sun Jun 14, 2020 3:49 pm

I use the Annex+32 ToolKit V1.11 and a ESP-WROOM32 board with chip ESP32D0WDQ6 from manuafacturer 'ef' (Winbond). Reading Module Info (button) works fine. Flash Firmware Only (button) results in a "A fatal error occurred: Invalid head of packet (0x46)" message. I tried another board from manufacturer 'c8' (Gigadevice) with the same result. On my oscilloscoop I can see the EN and GPIO0 signals switching.
Who can help me out?

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