nRF52840 bluetooth mesh reset

[parksj10]

I am trying to run this devkit as a bluetooth mesh node. It was working as a node, but I wanted to reset from start and test provisioning again. I tried resetting via desktop app -> programmer -> erase all. Output logs below:

21:56:49.459	Using nrfutil-device version: 2.0.3
21:56:49.459	Using nrf-device-lib version: 0.17.3
21:56:49.459	Using nrfjprog DLL version: 10.23.1
21:56:49.459	Using JLink version: JLink_V7.88j
21:56:49.627	Getting serialport options from persistent store 001050285840.pc-nrfconnect-programmer
21:56:53.200	Using nrfutil device to communicate with target via JLink
21:56:53.202	JLink OB firmware version J-Link OB-nRF5340-NordicSemi compiled Aug 8 2023 16:16:56
21:56:53.202	Device family NRF52_FAMILY
21:56:53.202	Device version
21:56:53.202	Board version PCA10056
21:56:53.608	Reading readback protection status for Application core
21:56:53.634	Reading readback protection status for Application core 0%
21:56:53.634	Reading readback protection status for Application core 100%
21:56:53.634	Application core protection status 'NRFDL_PROTECTION_STATUS_ALL'
21:56:53.634	Reading readback protection status for Application core completed
21:56:53.711	Skipping reading core Application information as it is protected.
21:56:54.548	Reading readback protection status for Application core
21:56:54.574	Reading readback protection status for Application core 0%
21:56:54.574	Reading readback protection status for Application core 100%
21:56:54.574	Application core protection status 'NRFDL_PROTECTION_STATUS_ALL'
21:56:54.574	Reading readback protection status for Application core completed
21:56:54.648	Device is loaded and ready for further operation
21:56:57.344	Recovering Application core
21:56:57.345	Recovering Application core 0%
21:56:58.509	Recovering Application core 100%
21:56:58.515	Recovering Application core completed
21:56:58.517	Loading core information for Application core
21:56:58.518	Loading core information for Application core 0%
21:56:58.529	Loading core information for Application core 100%
21:56:58.531	Loading core information for Application core completed
21:56:59.388	Reading readback protection status for Application core
21:56:59.390	Reading readback protection status for Application core 0%
21:56:59.397	Reading readback protection status for Application core 100%
21:56:59.397	Application core protection status 'NRFDL_PROTECTION_STATUS_NONE'
21:56:59.398	Reading readback protection status for Application core completed

I also tried:

nrfjprog --family NRF52 --eraseall
Erasing user available code and UICR flash areas.
Applying system reset

Neither of these worked, I still can't see the device via the nRF Mesh desktop app.

Am I missing something?

[Hung Bui]

Hi Josh, 
The eraseall command should be able to erase the whole chip, including the provisioning data. 
Could you try again with nrfjprog --recover ? 

[parksj10]

Still not showing up:

nrfjprog --recover                                                                                                                                                                  ─╯
Recovering device. This operation might take 30s.
Erasing user code and UICR flash areas.
Writing image to disable ap protect.

[parksj10]

Ok very weird I flashed on my custom firmware, wasn't showing up. Flashed an example firmware, it started showing up in provisioning screen. Reflashed the custom firmware and it started showing up again

[Hung Bui]

Hi, 
It may have something to do with the phone that it may cache the advertising data. You may want to turn off and on Bluetooth on the phone/PC, just in case.