Cannot upload code

[someonewating]

Hi there,

I have a develop board of esp32-cam, it works well. Today I accidentally left some iron wire above the board, which made some pins on the board has been connected. The video stream from esp32-cam stopped instantly. And I can't upload my code to the board anymore.

Once I connected the board to Arduino, the console display

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rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
invalid header: 0x00000000

I have a USB download board sold by the same retailer, that download board has a button "IO0", I can press it and get

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rst:0x10 (RTCWDT_RTC_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download

But even though, I still can't upload my code. I tried to reset the esp32-cam board to factory mode using 'esptool', failed as well,

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A fatal error occurred: Packet content transfer stopped (received 8 bytes)

Is that possible to make the board work anymore? Thanks in advance.

[ESP_Sprite]

Looks like you managed to kill the flash chip, or one of the ESP IO pins that connect there.

[someonewating]

Looks like you managed to kill the flash chip, or one of the ESP IO pins that connect there.

I guess so Do you know which two pins being shorted may cause this situation?

[ESP_Sprite]

The 5V and a flash pin could have caused this, for instance.