4 LED are blinking continously

[MARTIN FR]

i compiled the ble_uart_exmaple program and it get downloaded to the kit then the four LED on the nrf51DK started blinking continously i dont know what happen to board and i erase the whole kit and it works fine for only blinky example and for other examples it get downloaded but no response from the kit , any suggestions are welcome

thank you

[Stefan Birnir Sverrisson]

Ok, SDK 7 and S110 v7 are compatible, so that should work. If you are using github examples, verify that it is set up for the desired SDK, usually stated in the attached readme file.

After you erase the chip you need to flash the softdevice again before you flash the application.

What if you try other examples in the SDK but not in the ones on Github. The ones without softdevice (peripheral examples) and then the ones with softdevice (BLE examples)