Error (NRF_ERROR_TIMEOUT) when using nRF Connect

Question

Hi, when following the tutorial, https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/ble-advertising-a-beginners-tutorial i ran into problems. 
 I running and building/flashing to the nRF52840 DK (using segger and SDK 15.0.0 without any noticeable issues. 
 The problem appears when using "Connect v 3.1.0 Bluetooth low energy" 
 
 i've made sure to test my UART in other projects (as mentioned in https://devzone.nordicsemi.com/f/nordic-q-a/28729/nrf-connect-error-nrf_error_timeout ). 
 I haven't followed the " nRF Connect getting started assistant" since im using the fore mentioned SDK, hopefully this doesn't cause any issues? 
 
 Update: i have know tried to flash the 140 softdevice on it's own.. the connector works this way, meaning that the connection is solid.. But the Issue at hand remains.

Simonr · Accepted Answer

Hi 
 I see what's happening here. You're trying to connect to nRFConnect using the device you flashed the example firmware to, correct? That firmware is not doing anything but advertising, which is why it won't respond to nRFConnect. I'll admit, it's easy to miss, but you're supposed to use a separate nRF5 device (nRF52 Dongle is stated in the tutorial, but any nRF52 device will do) to connect to nRFConnect, which in turn will work as a central, and can be used to discover the peripheral board. 
 If you only have one DK, you can alternatively use the nRFConnect app for iOS/Android to use your phone as a central in order to discover and connect to the HelloWorld peripheral. 
 Best regards, 
 Simon

Error (NRF_ERROR_TIMEOUT) when using nRF Connect

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