Why 52DK(10056) reset when I connected the nrfUART app?

[FormerMember]

Hi, I add the NUS in the ble_app_hids_mouse example which the sdk version is 14.0. There are four services in the project: dis, bas, hids and nus. When I connceted the 52DK from the nrfUART app, a reset ocurred while I pushing a button to send the mouse movement. Why did that reset happen? Thank you, it is really urgent to me.

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(Why? How should we know with such poor info supplied?! It's great to know that it's urgent and the whole universe should help you ASAP - for free - but you don't bother to supply any debug information:)

Debug, debug, debug, debug. What UART or RTT logging says when enabled? On which line in your source code hard fault or asserted error code from some SD or SDK function return occurs?

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(2/2)

3. Finally reading the comment at the signature of this SVCALL you get / * @retval ::NRF_ERROR_FORBIDDEN The connection's current security level is lower than the one required by the write permissions of the CCCD associated with this characteristic.*/.

Voilà, it took us 2 minutes. Good luck with your urgent project;)