Nrf52840-DK reset button doesnt work?

[gnrboy]

Hi can somebody help why nrf52840 doesnt be reseted when you press SW5(if boot/reset)? I have alredy with tried with few examples flashed on nrf52840 and in Segger IDE set CONFIG_GPIO_AS_PINRESET  as in datasheet says "When using SEGGER Embedded Studio, go to Project > Edit Options > Code > Preprocessor > Preprocessor Definitions and add the CONFIG_GPIO_AS_PINRESET variable. "

NRF52840-DK PCA10056 1.0.0 2018.46 683391762

nrf5_sdk_15.3.0

[Simonr]

Hi

Can you please check out this link, which deals with a similar issue. It might be that your reset pin is set as P0.21 for some reason.

Best regards,

Simon

[gnrboy]

PROBLEM SOLVED: 

It seems that nrf connect app -> programmer app have some problem. I have tried multiple time to flash nrf52840-DK  with SES and NRF connect  programmer app with the same hex and problem will still always occur. 

I have now in SES in target tab first on connect j-link and then in SES in target tab on erase all and flash with the same hex used before and now reset work.