Unable to discover services

[karoun]

Hi,

I programmed nrf52840 dongle with simple ble_blinky example. The dongle successfully bond with my phone but when I tried to discover services and read characteristics nothing happen and it keep disconnecting. Can you tell me what can be the problem?

best regards,

Kosar

[Kenneth]

Hi,

A sniffer log would be helpful:
https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF-Sniffer 

What is the disconnect reason ("p_ble_evt->evt.gap_evt.params.disconnected.reason")? Is there any assert or error (check fault handler)?

Best regards,
Kenneth