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nRF52840 Dongle

I have a new nRF52840 Dongle which seems to have either had a hardware failure while updating its bootloader or the updating was unsuccessful and now the device does not flash the red led, what can I do to update the bootloader or test the hardware?

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Bjørn Kvaale over 6 years ago in reply to Dra6on +1

You can also program the dongle via P1 on the back of the dongle. You will need to solder some kind of SWD connector (e.g. the debug in or debug out connector on the dev kits) & program via some j-link…
Bjørn Kvaale over 6 years ago in reply to JamesBellville +1

Are you referring to the Thingy:52 or the 52840 dongle when you write 52840 Thingy? If you want to program the 52832 Thingy:52, you can either use DFU via the Thingy app (iOS or Android) or via the debug…
Bjørn Kvaale over 6 years ago in reply to JamesBellville +1

Yes, the USB is only for charging. You will need to do what I explained in my last comment to program or upgrade the FW. The reason is because the Thingy:52 does not have an integrated Segger J-Link chip…

0 JamesBellville over 6 years ago in reply to Bjørn Kvaale

I was hoping to program via the USB port on the Thingy 52, but I see from the documentation that it is only for charging the battery
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0 Bjørn Kvaale over 6 years ago in reply to JamesBellville

Yes, the USB is only for charging. You will need to do what I explained in my last comment to program or upgrade the FW. The reason is because the Thingy:52 does not have an integrated Segger J-Link chip (unlike the DK, which does).
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