nRF52840 Dongle doesn't show up in nRF App

RE: nRF52840 Dongle doesn't show up in nRF App

Susheel Nuguru — Wed, 24 May 2023 07:31:43 GMT

Sorry for late reply, we were OoO as there were few holidays in Norway.

It looks like the nRF Connect SDK mesh samples does not work on the dongle as is with the older bootloader on it. My colleague Hakon Elfing has tried to summarize steps to make nRF Connect Mesh samples work on dongle with older bootloader. Can you try it out to see if those steps help?

RE: nRF52840 Dongle doesn't show up in nRF App

Prekep — Mon, 15 May 2023 11:07:32 GMT

Thanks for reply,

So you saying that i need to upload bootloader for pca10059. From another thread which you post I download the bootloader for pca10059 but it's looks much smaller than the one on device that I never change, as far I know.

This is screen from Programmer with dongle and bootloader that I download.
Bootloader exact name is : graviton_bootloader_mbr_v1.0.1-[nRF5_SDK_15.0.1-1.alpha_f76d012].hex

So should I upload downloaded bootloader ?

Best regards.

RE: nRF52840 Dongle doesn't show up in nRF App

Susheel Nuguru — Mon, 15 May 2023 10:11:31 GMT

You need to have a bootloader for pca10059 for it to be able to boot to the application. Please look at the info from another thread which discusses the same thing as yours.

RE: nRF52840 Dongle doesn't show up in nRF App

Prekep — Fri, 12 May 2023 09:48:47 GMT

Maeby the Dongle need some kind of eraise memory. But not sure how to do it and keep MBR and bootloader safe.