I am developing a product using nrf51822 v5.2 SDK.The question is that Ble will automatically disconnect in some minutes after normal connect OK.The message by Sniffer is captured as follow:
Thanks!
It is very hard to read the image. Can you try to provide the same image as an attachment, then it is perhaps possible to see a larger font. I aggree with Nikita, can you check if the app_error_handler is asserted. Uncomment the ble_debug_assert_handler and set a breakpoint there, then you can see the error code etc.
I recommend you edit your question and add more information about your setup and what your are doing. devzone.nordicsemi.com/.../ .