ESP32 C6 Development Board Bootloader Issues

2026-04-18 13:30:03 Ask

I can't seem to get an ESP32 C6 Development Board into Bootloader mode.

https://spotpear.com/shop/ESP32-C6-1.47-inch-LCD-Display-Screen-LVGL-SD-WIFI6-ST7789.html

I think it keeps running a program I uploaded instead.

Is there a failsafe way to start the bootloader?

Error is:

Serial port COM4:

Connecting....

A serial exception error occurred: Write timeout

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3answers

SpotPearGuest57d4d

Answer time:2026-04-18 19:32:33

Press and hold the boot button

Insert USB power supply

Then release the boot button.

Afterwards, the main control will enter firmware update mode

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SpotPearUser3567

Answer time:2026-04-28 14:58:24

I’ve definitely been there with ESP32 boards where the code loop runs so fast it feels impossible to interrupt, almost like trying to navigate a high-speed corner in PolyTrack without losing control. To force it, try holding the 'Boot' button while pressing and releasing 'Reset' to manually trigger the bootloader mode. Once you see the "waiting for download" message in your serial monitor, you should be able to clear that old program and start fresh.

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SpotPearUser3600

Answer time:2026-05-05 17:44:41

To enter Bootloader mode on your ESP32 C6 Development Board, slope hold GPIO0 low while restarting the board. This should help you access the Bootloader successfully.

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ESP32 C6 Development Board Bootloader Issues

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