https://devzone.nordicsemi.com/f/nordic-q-a/21321/nrf52-fota-problemHello! I compiled hex file with NRF52_BOOT in mbed cli. It was programmed successfully. Mbed os version include fix to use nrf52 DFUService. Bootloader is loading correctly. But when I compile NRF52_OTA and try to update it via ble in nrf Connect, I&#39;men-USTelligent Community 13Thu, 13 Apr 2017 19:40:49 GMThttps://devzone.nordicsemi.com/thread/83518?ContentTypeID=1Thu, 13 Apr 2017 19:40:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3804e630-c62d-4de3-bafb-1318da303145Andrei<p>Problem solved. Problem was in nrfutil version.</p><div style="clear:both;"></div>