https://devzone.nordicsemi.com/f/nordic-q-a/37600/nrf52x-backwards-compatibility-with-nrf24l-250kbpsHello, I have an existing customer who has products based upon the nRF24L01+. He would like to upgrade to the newer nRF52x series but is concerned about backwards compatibility. What are the ways this could be accomplished without recalling allen-USTelligent Community 13Mon, 20 Aug 2018 10:56:14 GMThttps://devzone.nordicsemi.com/thread/144902?ContentTypeID=1Mon, 20 Aug 2018 10:56:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b17d6328-a1ff-46ea-9a23-6f20e6a9a876Kenneth<p>Hi,</p> <p>In general there is a description on how to setup the nRF5x-series to be backwards compatible with the nRF24L-series in the nRF5 SDK:<br /><a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/esb_users_guide.html?cp=4_0_0_5_1_2#esb_backwards">http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.0.0/esb_users_guide.html?cp=4_0_0_5_1_2#esb_backwards</a>&nbsp;</p> <p>However the nRF52-series doesn&#39;t support 250kbps mode,&nbsp; only the nRF51-series can be used for this specific configuration.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>