My students have done another trick with our Feather.
It won't enter bootloader or be recognized at all by two different computers.
I have tried holding the UserSw while Resetting and while plugging in, nothing is working.
RF52840 Feather - Won't respond
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- mikeysklar
- Posts: 14182
- Joined: Mon Aug 01, 2016 8:10 pm
Re: RF52840 Feather - Won't respond
The bootloader could be pretty jammed up.
Is there anything else connected to the board?
I assume you are using a known good cable.
If a device is showing up (even if the BOOT drive is not mounting) there is a command-line tool for updating the bootloader (adafruit-nrfutil)
https://learn.adafruit.com/introducing- ... mmand-line
If no serial device is appearing you will need a SEGGER J-LINK JTAG programmer to load a fresh bootloader.
https://www.adafruit.com/product/3571
Is there anything else connected to the board?
I assume you are using a known good cable.
If a device is showing up (even if the BOOT drive is not mounting) there is a command-line tool for updating the bootloader (adafruit-nrfutil)
https://learn.adafruit.com/introducing- ... mmand-line
If no serial device is appearing you will need a SEGGER J-LINK JTAG programmer to load a fresh bootloader.
https://www.adafruit.com/product/3571
Please be positive and constructive with your questions and comments.