hi
i am programing BLE blinky app blinky which advertise. yes, the same code i am trying on custom board works on nrf52DK which has LFRC crystal activated as mentioned on previous post. yes device is advertising and when i try to connect i manage to connect once and it works but after that i can not connect.no i have not try sniffer yet.
i then try to make another board with same component but doing the same thing. i am confused what to do now.
i am using this crystal
7M-32.000MAHV-T. 
i also check the flag method to check if HF crystal is working or not but always return 0 so now HF crystal is not working and i do not have frequency generator. crystal connection are good.
well any help is appreciated.
thanks
joshi