why the net is locked and “”west flash --recover ” don‘t work

[spring.liu]

3324.log.log

error log

[spring.liu]

the version is  nRF5340-DK 1.0.0。 i buy anohter one  ，but  the net also is locked .I hope you can give me a concrete solution

[Håkon Alseth]

Hi,

 

spring.liu said:

the version is  nRF5340-DK 1.0.0。 i buy anohter one  ，but  the net also is locked .I hope you can give me a concrete solution

I'm sorry to hear that the new kit also behaves like this.

Could you try the very latest version of nrfjprog? That can be downloaded from here:

https://www.nordicsemi.com/Products/Development-tools/nRF-Command-Line-Tools/Download?lang=en#infotabs

 

This is the recover commands that we use internally in tech support:

nrfjprog --recover --coprocessor CP_NETWORK && nrfjprog --recover --coprocessor CP_APPLICATION

Does it still misbehave?

 

Kind regards,

Håkon

[spring.liu]

• I need three boards to do it now. I need to fix it

At the first ，I use the nrfconnect    ---->erase all     ,but   failure 

I've tried this before         " nrfjprog -f NRF53 --recover --coprocessor CP_NETWORK "

[Håkon Alseth]

Hi,

 

As the application core controls the network core, via this register:

https://infocenter.nordicsemi.com/topic/ps_nrf5340/chapters/reset/doc/reset.html?cp=3_0_0_3_9_10#register.NETWORK.FORCEOFF

It is important that you recover the application core as well. Can you try to recover the app core first?

"nrfjprog --recover --coprocessor CP_APPLICATION --log" - if that still fails, it will generate a log.log file, which you can attach to this thread.

 

Kind regards,

Håkon

[spring.liu]

NRF_RESET->NETWORK.FORCEOFF = RESET_NETWORK_FORCEOFF_FORCEOFF_Hold;？ 

[Håkon Alseth]

Hi,

 

spring.liu said:

NRF_RESET->NETWORK.FORCEOFF = RESET_NETWORK_FORCEOFF_FORCEOFF_Hold;？ 

Yes, this is the register that controls the network cpu state, from the application cpu.

 

Could you share the log (log.log file created after calling "nrfjprog") from recovering both application core and network core?

[spring.liu]

0878.log.log

 

What do I do next?

[Håkon Alseth]

Hi,

 

Compile that example for board nrf5340dk_nrf5340_cpuapp, but set this in prj.conf instead to power up the net core:

CONFIG_BOARD_ENABLE_CPUNET=y

Then try to program a bluetooth example (which generates a project for both cores), or any other example that utilizes the network core.

 

Kind regards,

Håkon