https://devzone.nordicsemi.com/f/nordic-q-a/65556/programming-thingy91-through-nrf52840dk-external-debug-probeHi, Can the Thingy91 be programmed through the nrf58240DK debug probe? I&#39;ve had no luck doing so but would like to confirm. Thanks, Roberten-USTelligent Community 13Fri, 04 Sep 2020 11:39:07 GMThttps://devzone.nordicsemi.com/thread/268042?ContentTypeID=1Fri, 04 Sep 2020 11:39:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bc3aee93-fcff-431c-9bfb-614a096f529fMartin Lesund<p>Hi Robert,&nbsp;<br />Unfortunately, the programming chip on the nrf52DKs does not support the M33 architecture.<br />However a nRF53DK or a nRF91DK will be able to use the debug probe on the Thingy:91.<br /><br /><br /></p><div style="clear:both;"></div>