https://devzone.nordicsemi.com/f/nordic-q-a/125154/simultaneous-switched-use-of-9151-dect-nr-modem-and-lte-modemCurrently (as far as i can tell) the firmware for the DECT-NR+ mode is mutually exclusive with the LTE firmware, and you cannot mix the two wireless modes as you have to flash a very different firmware to enable the NR+ mode. Even if its not entirelyen-USTelligent Community 13Fri, 24 Oct 2025 09:14:06 GMThttps://devzone.nordicsemi.com/thread/552335?ContentTypeID=1Fri, 24 Oct 2025 09:14:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:65f5e4a2-a645-481b-a9fb-2cae8281bd80dejans<p>Hi,<br /><br />Regarding future plans, please contact your regional sales manager.<br /><br />Best regards,<br />Dejan</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/552329?ContentTypeID=1Fri, 24 Oct 2025 08:50:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b18c7e20-cbba-41a1-817a-a789b51c7b22roland-lifeline<p>Would it be possible that in the future a firmware could exist that encompasses both modes?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/552317?ContentTypeID=1Fri, 24 Oct 2025 06:41:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bb1b716e-37f0-4976-8c63-ab905f41d3eedejans<p>Hi,<br /><br />Switching between separate firmware images is not possible. It is prevented by the platform security.<br /><br />Best regards,<br />Dejan</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/552242?ContentTypeID=1Thu, 23 Oct 2025 11:47:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7cae701e-c19a-4f14-99e0-21b9a8e9f585roland-lifeline<p>Hi Dejan,</p> <p></p> <p>Pretty much this:</p> [quote userid="111786" url="~/f/nordic-q-a/125154/simultaneous-switched-use-of-9151-dect-nr-modem-and-lte-modem/552235"]Do you think of switching between LTE and DECT-NR+ without changing the firmware?[/quote] <p>I understand that you cannot use both technologies simultaneously, but being able to switch the mode without reprogramming the firmware could be useful</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/552235?ContentTypeID=1Thu, 23 Oct 2025 11:31:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9c229abf-07d8-43ba-9e3a-709ea59c8fe9dejans<p><br /><br />Hi</p> [quote user=""]Even if its not entirely simultaneous, I can see BoM cost optimisations if we would be able to use a single chip for both of these, even if we have to &quot;hard-switch&quot; between the two modes in software.[/quote] <p>Both LTE and DECT-NR+ are supported on nrf9151. Separation between LTE and NR+ is done on the firmware level. Each of the technologies has its own firmware. Please have a look at the&nbsp;<a href="https://docs.nordicsemi.com/bundle/ps_nrf9161/page/dect.html#ariaid-title4">Note</a>&nbsp;from DECT NR+ documentation.<br /><span>Note:</span><span>&nbsp;While running DECT NR+ firmware, the&nbsp;</span><span>nRF9151</span><span>&nbsp;SiP does not support the LTE modem or GPS receiver. See the&nbsp;</span><a title="The nRF9151 SiP contains a Low-Power Wide-Area (LPWA) network processor with dedicated flash memory and RAM, which controls the radio and baseband hardware components. After installing Nordic Semiconductor firmware, long term evolution (LTE) capabilities are available and comply with release 14 of the 3GPP LTE Cat-M1 and Cat-NB1/NB2 standards and release 17 of the 3GPP IoT NTN standard." href="https://docs.nordicsemi.com/bundle/ps_nrf9151/page/ip/radio_lte/doc/frontpage.html">LTE modem</a><span>&nbsp;section for more information on alternative firmware.</span></p> <p><span></span></p> [quote user=""]Is this a technical limitation or is this something that will eventually become possible in a future firmware revision?[/quote] <p></p> <p><span>Do you consider using LTE and DECT-NR+ simultaneously?<br />Do you think of switching between LTE and DECT-NR+ without changing the firmware?<br /><br />Best regards,<br />Dejan</span></p> <p></p> <p></p> <p><span></span></p><div style="clear:both;"></div>