The Eval board, by default, will download the code over HCI UART interface.
In the Schematic you have attached I don't see the connections for the HCI UART, instead SWD IO & CLK are shown.
How are you programming the boards. UART or SWD?
We have connected the external switches to recovery and reset pins. We are able to flash the code successfully. We have tried as you suggested. But, the BLE is not advertising.
I just want to clarify one thing. Earlier we have designed the hardware for the same BLE. But the PCB was 4 layer PCB. These boards are working perfectly. Now we designed 2 layer PCB which is giving the problem (Not advertising). Is this really it gives the problem and not work in two layer PCB and works perfectly in four layer PCB.? I just want the clarification on this.
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Our eval board uses 4 layer PCB.
As of now please go ahead with 4 layer PCB.
I have forwarded the request to our hardware team to evaluate 2 layer PCB for 20719.