Can't enter bootloader mode on GEMMA v2

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fungineersma
 
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Joined: Wed Oct 27, 2021 4:57 pm

Can't enter bootloader mode on GEMMA v2

Post by fungineersma »

When I power the GEMMA by USB (I've tried 5 different cables now), there's just a pulsating rainbow of colors on the onboard rgb. Pressing the reset button causes the red button to flash quickly for a fraction of a second and then back to the rainbow flashing.

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dastels
 
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Re: Can't enter bootloader mode on GEMMA v2

Post by dastels »

The rainbow flashing is most likely a CircuitPython error code. What is output in the REPL?

If you aren't familiar with using the REPL (or even just the serial connection), see
https://learn.adafruit.com/welcome-to-c ... al-console
https://learn.adafruit.com/welcome-to-c ... al-console
https://learn.adafruit.com/welcome-to-c ... n/the-repl

Double-pressing reset should put you in bootloader mode and mount the GEMMABOOT drive.

Dave

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fungineersma
 
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Re: Can't enter bootloader mode on GEMMA v2

Post by fungineersma »

Double clicking the reset did the trick, thank you.

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