https://devzone.nordicsemi.com/f/nordic-q-a/69659/compatible-nrf5-sdk-softdevice-with-nrf52832-rev-1Guys, I am currently experimenting with an existing wearable that contains an NRF52832XXAA Revision 1, and I&#39;m having a hard time to have it running a simple BLE peripheral application. Could you indicate me which SDK version should I use or whaten-USTelligent Community 13Thu, 17 Dec 2020 19:50:34 GMThttps://devzone.nordicsemi.com/thread/285719?ContentTypeID=1Thu, 17 Dec 2020 19:50:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1864d5d9-3396-4f5f-b114-46363ba940f6ubieda<p>Hey guys,&nbsp;</p> <p>I was skimming over the files to dig into&nbsp;alternative causes and found the answer for stucking in ble_stack_init():</p> <p>The project was configured to have the Softdevice clock be the external low-power crystal, when that hardware did not have it. I just changed it to be the RC and now it runs as expected (from the same SDK version). I took the idea from here:&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/29804/sdk14-ble_periphal-example-dont-work">devzone.nordicsemi.com/.../sdk14-ble_periphal-example-dont-work</a></p> <p>I hope this helps somebody anytime.</p><div style="clear:both;"></div>