I have programmed nrf51-dk with an example code available at mbed platform,everything works fine except that the ble is visible even if we open bluetooth menu.It is scanned and in the bluetooth scan list. I had read somewhere that to scan a ble device you need Ble scanning app. Whereas when an example is programmed via uVision Kiel ,in that case i have to download the NRF toolbox app to scan the device.