https://devzone.nordicsemi.com/f/nordic-q-a/84959/switching-from-nrf52833-qfn-to-wlcspHi! We&#39;re considering switching between the mentioned packages, both in nRF52833. I&#39;ve looked around dev zone and product specificaiton pages, and could not find anything which would cause unexpected issues when switching between the two. Is there anythingen-USTelligent Community 13Mon, 21 Feb 2022 13:57:58 GMThttps://devzone.nordicsemi.com/thread/354172?ContentTypeID=1Mon, 21 Feb 2022 13:57:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b7fbca5d-b387-4b4b-8254-6e8a0a45df0aA.P<p>Thank you!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/354169?ContentTypeID=1Mon, 21 Feb 2022 13:54:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4a665ef9-a1ff-42bb-bdb5-9514483bdbdcSimonr<p>Hi</p> <p>There shouldn&#39;t be any big problems changing from the QFN to WLCSP package apart from the &quot;physical&quot; differences. The two things I notice you don&#39;t mention yourself that is worth noting is that the WLCSP package variants are light sensitive, <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fps_nrf52833%2Frecommended_op_conditions.html&amp;anchor=concept_hcx_drw_kbb">described closer here</a>. And that we have a specific application note on WLCSP handling guidelines available <a href="https://infocenter.nordicsemi.com/pdf/nan_38.pdf?cp=16_2">here that is worth reading.</a></p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>