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same here, how can I un-brick fix it? @caizelin |
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Flashing nrf52840_mdk_usb_dongle_open_bootloader_v1.2.0.hex with PyOCD works; however, flashing back to U2F with uf2_bootloader-nrf52840_mdk_usb_dongle-0.7.1-s140_6.1.1.hex does not works. |
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In the end I solved using a chep debug interface (https://it.aliexpress.com/item/1005003587741362.html?spm=a2g0o.order_list.order_list_main.72.41923696u5LcUo&gatewayAdapt=glo2ita) and following this guide (https://wiki.makerdiary.com/nrf52840-mdk-usb-dongle/programming/pitaya-link/) |
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Did you managed to unbrick it with this debug interface or bought a new one? |
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Hi, after an attemp to switch to UF2 Bootloader from Open Bootloader using this guide https://github.com/makerdiary/nrf52840-mdk-usb-dongle/tree/master/firmware/open_bootloader#:~:text=port%2Dname%3E-,Change%20to%20Open%20Bootloader%20from%20UF2%20Bootloader,-You%20can%20also i probably bricked my dongle because now my pc doesn't recognize it. It doesn't get in any mode if i double click the reset button nor if i connect it to USB while pushing the button. Is there anything I can do to unbrick it?
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