hi i flashed s110 softdevice 7.1.0 then ble_app_beacon example application fron sdk 7.1.0 into nrf51822 beacon successfully.but led is not at all blinking in beacon.and i can not detect that in nrf uart app.
What happens if you only change PCA10028 to PCA20006, but leave device and RAM and ROM settings as it is?
Can you also try a simple, non-Bluetooth, example?