https://devzone.nordicsemi.com/f/nordic-q-a/14554/can-not-detect-the-module-with-bluetooth-scan-after-programmingWe are using a module which has nrf51822 on it. Before we have programmed it, we were able to see it when we scan for ble. But after we program we could not able to detect it. To be clear, We upload the code successfully,(First we program bootloaderen-USTelligent Community 13Fri, 17 Jun 2016 14:16:47 GMThttps://devzone.nordicsemi.com/thread/55577?ContentTypeID=1Fri, 17 Jun 2016 14:16:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:46894652-b9d1-4a15-aafb-f39fcecaef31Petter Myhre<p>You don&#39;t need the bootloader. What SDK are you using? If you are using SDK 11 flash the S130 v2 found in \components\softdevice\s130\hex with nRFgo Studio. Then open an example, for example ble_app_hrs_s130_pca10028.uvprojx (of you have the PCA10028 board) in \examples\ble_peripheral\ble_app_hrs\pca10028\s130\arm5_no_packs and flash it. Then you should be able to find it.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/55578?ContentTypeID=1Thu, 16 Jun 2016 22:19:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d9e0da25-b0f6-4121-953d-f57074165fd4Khazragy<p>I think you have to program the softdevice first, before the Bootloader.</p><div style="clear:both;"></div>