doc: Replace nrfjprog to nrfutil in nRF91 docs

Replace nrfjprog and nRF Command Line Tools to nrfutil in nRF91 docs Signed-off-by: divya pillai <[email protected]>
nrfconnect · Feb 4, 2025 · 484aeeb · 484aeeb
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diff --git a/doc/nrf/app_dev/device_guides/nrf91/nrf91_board_controllers.rst b/doc/nrf/app_dev/device_guides/nrf91/nrf91_board_controllers.rst
@@ -26,7 +26,7 @@ The nRF5340 IMCU comes preprogrammed with J-Link SEGGER OB and board controller
 If you want to change the default configuration of the DK, you can use the `Board Configurator app`_ in `nRF Connect for Desktop`_ .
 
 To update board controller firmware on the nRF9161 DK, download the `nRF9161 DK board controller firmware`_ from the nRF9161 DK downloads page.
-To program the HEX file, use `nRF Util`_.
+To program the HEX file, use `nRF Util's device command <Device command overview_>`_.
 
 .. _nrf9160_ug_intro:
 
@@ -39,10 +39,7 @@ Make sure to select the correct controller before you program the application to
 
 The nRF52840 SoC on the DK comes preprogrammed with a firmware.
 If you need to restore the original firmware at some point, download the `nRF9160 DK board controller firmware`_ from the nRF9160 DK downloads page.
-To program the HEX file, use nrfjprog (which is part of the `nRF Command Line Tools`_).
-
-.. note::
-      |nrfjprog_deprecation_note|
+To program the HEX file, use `nRF Util's device command <Device command overview_>`_.
 
 If you want to route some pins differently from what is done in the preprogrammed firmware, program the :zephyr:code-sample:`hello_world` sample instead of the preprogrammed firmware.
 Build the sample (located under :file:`ncs/zephyr/samples/hello_world`) for the ``nrf9160dk_nrf52840`` board target.

diff --git a/doc/nrf/app_dev/device_guides/nrf91/nrf91_features.rst b/doc/nrf/app_dev/device_guides/nrf91/nrf91_features.rst
@@ -120,14 +120,11 @@ There are two ways to update the modem firmware:
 Full update
   You can use either a wired or a wireless connection to do a full update of the modem firmware:
 
-  * When using a wired connection, you can use either the `Programmer app`_, which is part of `nRF Connect for Desktop`_, or the `nRF pynrfjprog`_ Python package.
-    Both methods use the Simple Management Protocol (SMP) to provide an interface over UART, which enables the device to perform the update.
+  * When using a wired connection, you can use either the `Programmer app`_, which is part of `nRF Connect for Desktop`_, or `nRF Util's device command <Upgrading modem firmware using J-Link_>`_.
+    Both methods use the :term:`Serial Wire Debug (SWD)` interface to update the firmware.
 
-    * You can use the Programmer app to perform the update, regardless of the images that are part of the existing firmware of the device.
-      For example, you can update the modem on an nRF9160 DK using the instructions described in the :ref:`nrf9160_updating_fw_modem` section.
-
-    * You can also use the nRF pynrfjprog Python package to perform the update, as long as a custom application image integrating the ``lib_fmfu_mgmt`` subsystem is included in the existing firmware of the device.
-      See the :ref:`fmfu_smp_svr_sample` sample for an example on how to integrate the :ref:`subsystem <lib_fmfu_mgmt>` in your custom application.
+    You can use the Programmer app to perform the update, regardless of the images that are part of the existing firmware of the device.
+    For example, you can update the modem on an nRF9160 DK using the instructions provided in the :ref:`nrf9160_updating_fw_modem` section.
 
   * When using a wireless connection, the update is applied over-the-air (OTA).
     See :ref:`nrf91_fota` for more information.

diff --git a/doc/nrf/links.txt b/doc/nrf/links.txt
@@ -858,6 +858,7 @@
 .. _`Device command overview`: https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-device/guides/programming.html
 .. _`Programming application firmware using MCUboot serial recovery`: https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-device/guides/programming_firmware_thingy91.html
 .. _`Programming application firmware on the nRF54L15 SoC`: https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-device/guides/programming_nrf54L15.html
+.. _`Upgrading modem firmware using J-Link`: https://docs.nordicsemi.com/bundle/nrfutil/page/nrfutil-device/guides/programming_modem_9160.html
 
 .. _`anomaly 19`: https://docs.nordicsemi.com/bundle/errata_nRF5340_EngA/page/ERR/nRF5340/EngineeringA/latest/anomaly_340_19.html
 

diff --git a/doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst b/doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst
@@ -754,6 +754,10 @@ Documentation
   * New page :ref:`add_new_led_example` under :ref:`configuring_devicetree`.
     This page includes information previously located in the |nRFVSC| documentation.
 
-* Updated the :ref:`create_application` page with the :ref:`creating_add_on_index` section.
+* Updated:
+
+  * The :ref:`create_application` page with the :ref:`creating_add_on_index` section.
+  * The :ref:`ug_nrf91` documentation to use `nRF Util`_ instead of nrfjprog.
+
 * Removed the standalone page for getting started with Nordic Thingy:53.
   The contents of this page have been moved to the :ref:`thingy53_precompiled` page and to the `Programmer app <Programming Nordic Thingy:53_>`_ documentation.