Problem facing in NRF Dongle while connecting the device through Bluetooth, Services is not listing

[namitha K M]

Hi,

I am working NRF52840 Dongle board, I am using ble_app_uart program with some custom code, from that I am facing some problem while connecting the device in nrf connect for mobile app. what is the problem here is the device is not connecting and services is not listing. I am loading the same code in NRF DK board from that its working good and services also listing but from NRF dongle If I load the code means, its programming and device name also advertising but the problem is services is not listing. Can you please anyone help me on this, how to solve this type of error. 

Thanks & I am waiting for your quick response.

[Einar Thorsrud]

Hi,

Have you made any changes to the ble_app_uart example to run on the dongle? In fact, there are quite a few changes that would be needed, as the sample use UART, and the dongle does not have a USB to UART bridge. There are also a few other changes that would be needed, as there are no projects for the dongle in the ble_app_uart sample.

what is the problem here is the device is not connecting and services is not listing.

I read this as basically "it does not work". Does it even advertise? I assume an error occurred, probably because you have not ported the project to the dongle (so there could be several issues). Do you have an external debugger so that you can debug the dongle and see what happens? If not, perhaps it would make sense to work on the DK while porting the application to the dongle, so that you have a working debugger (you could also use the DK as a debugger for the dongle, but note that there are a few pitfalls as described for instance in the nRF52840 Dongle Programming Tutorial).