https://devzone.nordicsemi.com/f/nordic-q-a/17400/nrf52-dk---blinky-example-led-not-blinkingHi, I am trying to flash the blinky example from nRF5_SDK_12.0.0_12f24da, the program compiles and is also downloaded to the NRF52 DK successfully. But the LEDs are not blikning. Could you point out where I am going wrong. Regards, Pradeepen-USTelligent Community 13Tue, 15 Nov 2016 10:20:23 GMThttps://devzone.nordicsemi.com/thread/66887?ContentTypeID=1Tue, 15 Nov 2016 10:20:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e7fbce37-cfc8-4a8e-9084-f19d257ebac2J&#248;rgen Holmefjord<p>Did you change any of the files in the SDK? Can you try extracting a fresh copy of the SDK and retry compiling and flashing the blinky example? You will not need a softdevice if you use the standard blinky.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/66886?ContentTypeID=1Wed, 09 Nov 2016 06:32:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:32696cbb-63a4-43fb-b4e2-3ceca2cdd0f5Pradeep<p>I am using the standard blinky example. Yes, the precompiled blinky hex file works.</p> <p>Yes I have programmed the soft device on board and then program the BLE Blinky Application. Still the LEDs dont blink. Am I missing something here?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/66885?ContentTypeID=1Fri, 28 Oct 2016 12:33:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cda8051f-f6a2-4d94-bfb2-d1f64f81670fJ&#248;rgen Holmefjord<p>Are you using the standard <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/gpio_example.html?cp=4_0_0_4_5_1">blinky example</a> or the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/ble_sdk_app_blinky.html?cp=4_0_0_4_2_2_19">BLE Blinky Application</a>? Does it work if you program the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/getting_started_precompiled.html?cp=4_0_0_1_0">precompiled blinky hex file</a>? Have you programmed a <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/getting_started_softdevice.html?cp=4_0_0_1_3">softdevice</a> to the board? This is necessary if you use the BLE example, but should not be programmed if you use the standard blinky example. Have you tried performing a <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/getting_started_examples.html?cp=4_0_0_1_2_0#gs_examples_erasing">board erase</a>?</p><div style="clear:both;"></div>