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nRF52833 quit bootloader mode

Miegatron

I entered the bootloader mode of nRF52833DK, but I cannot exit it. When I reconnect the device LED5 is not on and the J-link driver doesn't appear as the removable driver in the PC anymore. How to solve it?

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  • +1

    Hi,

    Normally you should be able to exit bootloader mode by power cycling the device. If the onboard debugger is in DFU mode it should show up as a removable drive named "BOOTLOADER". It could be that the firmware is corrupt for some reasons. If so, enter bootloader mode by holding down the reset button while power cycling. Then you should see the BOOTLOADER drive appear, and can recover by copying the interface firmware to it (can be downloaded from the nRF52840 DK downloads page).

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  • +1

    Hi,

    Normally you should be able to exit bootloader mode by power cycling the device. If the onboard debugger is in DFU mode it should show up as a removable drive named "BOOTLOADER". It could be that the firmware is corrupt for some reasons. If so, enter bootloader mode by holding down the reset button while power cycling. Then you should see the BOOTLOADER drive appear, and can recover by copying the interface firmware to it (can be downloaded from the nRF52840 DK downloads page).

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