Hello, I am using SDK15.2 on nrf52 DK with SD 6.1.0 and having an issue in long button press action. The single press and long press button action work ok before BLE connection establishes between DK and android device. But once the connection established, only the single press action works. I think this issue could be because of the app_timer used by the button and is disturbed by some other routines. But I am unable to find any solution.
The problem is solved, as I have edited the ble_app_uart application for my project, the issue was caused by the ble_evt_handler callback which on BLE_GAP_EVT_CONNECTED again configures the buttons and the button ID was, unfortunately, the same I am using for long press action.