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ItsyBitsy32U4 Not Recognized or Entering Bootloader Mode
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ItsyBitsy32U4 Not Recognized or Entering Bootloader Mode

by netless on Wed Jun 16, 2021 2:25 am

I have just unpacked a new ItsyBitsy32U4 and when I tried to test it with blink, the PC reported it was setting up a new device “Atm32U4DFU” but then the ItsyBitsy32U4 disappeared from sight and has not responded since. The Arduino IDE does not pick it up nor can it be seen in the PC device manager ports list.

I have a few of these ItsyBitsy32U4 in various projects and they all recognized and work fine, I tried a few cables & 2 PC's but no luck with recognizing this new ItsyBitsy32U4.

I'm suspecting this unit may have been Dead on Arrival?

ItsyBitsy32H4-DOA.jpg
ItsyBitsy32H4-DOA.jpg (210.22 KiB) Viewed 132 times


Is there a solution for this that I'm not seeing?

netless
 
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Re: ItsyBitsy32U4 Not Recognized or Entering Bootloader Mode

by adafruit_support_carter on Wed Jun 16, 2021 2:11 pm

Yah, that doesn't sound right. And you've got others to help sanity check expected behavior. Let's just replace it. Send an email to support@adafruit.com with a link to this thread and your order number and they can send you a replacement Itsy 32u4.

adafruit_support_carter
 
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Re: ItsyBitsy32U4 Not Recognized or Entering Bootloader Mode

by adafruit_support_carter on Wed Jun 16, 2021 2:22 pm

Also, just some info that'll help us - where did you order the board from?

adafruit_support_carter
 
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Joined: Tue Nov 29, 2016 2:45 pm

Please be positive and constructive with your questions and comments.