Error: Flash Download failed - "Cortex-M4"

[Sunil@123]

Hello Everyone,

I am using nrf52 dk development board. I'm  having a problem  when  I load my ble_app_uart example . I am getting an error message  Error: Flash Download failed  -  "Cortex-M4"   . I am using SDK17 version. I have done the below setting. please help me out to solve this issue .

[awneil]

Please post (copy & paste) what appears in the 'Output' window when you attempt programming.

Can you download successfully using the Segger and/or Nordic utilities?

[Sunil@123]

[Sunil@123]

when I load soft defvice then gets error

[Kenneth]

Can you try install latest nRF command line tools, then run from command line:

'nrfjprog --recover' or 'nrfjprog --eraseall'

[Sunil@123]

is there any other solution. 

[Kenneth]

If you click on the Flash Download tab in one of your screenshots, I believe there may be an option to erase all flash before programming also.

I do believe the problem you experience may occur if you swap to a project with a different softdevice, so as long as you stay on the same softdevice release you should be good.

[Sunil@123]

there is a option --> erase

when i erase and again load it shows same error