ble_connectivity on nordic_sdk_11 was not working. I am unable to scan.

[Siva Subrahmanyam]

I am nrf51822 QFACA1 chip with s130 softdevice using nordic_sdk_11. ble_connectivity example was not working and i am unable to do a scan from my application board.

[Wojtek]

So, just connect swdio, swdclk and gnd to your nrf5x-DK debug out port or whatever programmer you got there, and check it with debugger. also, you could just check the firmware on other board (like DK). maybe there is something wrong with your board, hard to say with such low amount of info.