I am using nrf51422 and ble app uart as my example code and trying to connect to my ios app nrf toolbox by enabling a static key for the pairing process. i have read all the previous threads on this problem and do all the necessary steps but my code does not work.it is still working ass ble app uart example with no passkey. i have attached my project password2.zip can someone tell me where i am making a mistake.?