https://devzone.nordicsemi.com/f/nordic-q-a/72401/qspi-and-nrf52840-communication-establishmentHi, I am currently testing QSPI communication for flash. I am using the Termite console. When the console starting I got this error message: uart:~$ [1B][8D[1B][J[00:00:00.592,132] &lt;err&gt; qspi_nor: flash id error. Extected: [200 64 21], got: [200 64en-USTelligent Community 13Fri, 05 Mar 2021 12:50:25 GMThttps://devzone.nordicsemi.com/thread/298069?ContentTypeID=1Fri, 05 Mar 2021 12:50:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:59f9d847-4a5b-4c05-bd21-e678ce1951f1Massoud <p>I am using ncs1.4.0 and using a custom board with nFR52840.&nbsp; nRF52840 supports up to 32 MHz, the problem is solved by decreasing QSPI frequency to 16 Mhz.</p> <p>Regards,</p> <p>Massoud&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/298056?ContentTypeID=1Fri, 05 Mar 2021 12:35:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6399d8c3-b51c-47c7-8a8b-e3e25986dc7eJ&#248;rgen Holmefjord<p>Hi,</p> <ul> <li>Which version of NCS are you using?</li> <li>Which sample are you basing this on, and what modifications have you made?</li> <li>Are you testing towards the on-board QSPI flash chip on the nRF52840 DK?</li> </ul> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>