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1. Use the prebuilt images provided in Release Notes.

2. Build the images from the sources, as documented in Building Thingy-9151-Lite Software.

2. Preparing Host

3. Installing nRF Util

Download and install the SEGGER J-Link Software from https://www.segger.com/downloads/jlink/:

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nrfutil install device

4. Identifying Nordic Devices on the Linux Host

1. Usenrfutil to list all connected development kits, their serial numbers and associated serial ports:

   Code Block
   $ nrfutil device list 1050021575 product J-Link board version PCA10095 ports /dev/ttyACM2, vcom: 0 /dev/ttyACM3, vcom: 1 traits devkit, jlink, seggerUsb, serialPorts, usb 1050931892 product J-Link board version PCA10153 ports /dev/ttyACM0, vcom: 0 /dev/ttyACM1, vcom: 1 traits boardController, devkit, jlink, modem, seggerUsb, serialPorts, usb Found 2 supported device(s)

2. Use nrfutil to identify the specific devices:

   Code Block

   $ nrfutil device device-info --serial-number 1050931892 serial_number: 001050931892 boardVersion: PCA10153 deviceFamily: NRF91_FAMILY deviceVersion: NRF9161_xxAA_REV3 jlinkObFirmwareVersion: J-Link OB-nRF5340-NordicSemi compiled Apr 11 2024 17:44:26 protectionStatus: NRFDL_PROTECTION_STATUS_NONE $ nrfutil device device-info --serial-number 1050021575 serial_number: 001050021575 boardVersion: PCA10095 deviceFamily: NRF53_FAMILY deviceVersion: NRF5340_xxAA_ENGD jlinkObFirmwareVersion: J-Link OB-nRF5340-NordicSemi compiled Apr 11 2024 17:44:26 protectionStatus: NRFDL_PROTECTION_STATUS_NONE

3. In this example, the nRF9161 serial number is 1050931892, and the nRF5340 serial number is 1050021575. They should be used to program the corresponding devices.

2. Obtaining Zephyr Images

5. Programming Thingy-9151-Lite Application to nRF9161

1. If needed, disable access protection on nRF9161:

   Code Block
   nrfutil device recover --serial-number <serial number>

2. Program the release image to nRF9161:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf9151_app_on_nrf9161dk_***_release.hex

3. Alternatively, program the application image from the build tree:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf9151_app/build/zephyr/merged.hex

4. Reset the board:

   Code Block
   nrfutil device reset --serial-number <serial number>

6. Programming Thingy-9151-Lite Application to nRF5340 Application Core

1. If needed, disable access protection on the nRF5340 application core:

   Code Block
   nrfutil device recover --serial-number <serial number>

2. Program the release image to the nRF5340 application core:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf5340_cpuapp_app_on_nrf5340dk_***_release.hex

3. Alternatively, program the application image from the build tree:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf5340_cpuapp_app/build/zephyr/merged.hex

4. Reset the application core:

   Code Block
   nrfutil device reset --serial-number <serial number>

7. Programming Thingy-9151-Lite Application to nRF5340 Network Core

1. If needed, disable access protection on the nRF5340 network core:

   Code Block
   nrfutil device recover --serial-number <serial number> --core Network

2. Program the release image to the nRF5340 network core:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf5340_cpunet_app_on_nrf5340dk_***_release.hex

3. Alternatively, program the application image from the build tree:

   Code Block
   nrfutil device program --serial-number <serial number> --firmware thingy9151lite_nrf5340_cpunet_app/build/zephyr/zephyr.hex

4. Reset the network core:

   Code Block
   nrfutil device reset --serial-number <serial number> --core Network

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