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Stuck in bootloader mode after updating bootloader
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Stuck in bootloader mode after updating bootloader

by geekguy on Wed Aug 23, 2017 7:32 pm

Hi,

I just updated the UF2 Bootloader to v1.23 on a Feather M0 Express and a CircuitPython Express. Now, they are both stuck in bootloader mode. How do I get them back to regular mode??

8-Dale

geekguy
 
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Location: Beaverton, OR

Re: Stuck in bootloader mode after updating bootloader

by tannewt on Wed Aug 23, 2017 11:52 pm

Did you reflash CircuitPython? Try that.

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Re: Stuck in bootloader mode after updating bootloader

by danhalbert on Thu Aug 24, 2017 7:16 am

Yeah, that's expected. Any existing program in internal flash is gone (though the SPI flash is not touched on Express boards). I just verified this yesterday in another thread; it will stay in bootloader mode until you copy CircuitPython onto the xxxBOOT drive or you upload something else such as an Arduino sketch.

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Re: Stuck in bootloader mode after updating bootloader

by geekguy on Thu Aug 24, 2017 12:20 pm

Updating CircuitPython did the trick! Both boards are in regular mode now, and I can access them using DroidTerm Pro from my Android phone. Thanks for the assistance! :)

8-Dale

geekguy
 
Posts: 271
Joined: Tue Sep 10, 2013 2:43 pm
Location: Beaverton, OR

Please be positive and constructive with your questions and comments.