> ## Documentation Index
> Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Nordic Semiconductor nRF9160 DK Setup Guide

> Get started with the Nordic Semiconductor nRF9160 LTE-M/NB-IoT SoC and a Telnyx IoT SIM. APN configuration, AT command tests, and first connection steps.

<Note>
  **Original location:** Wireless > IoT > nordic-semiconductor
</Note>

The nRF9160 DK is an affordable, pre-certified single-board development kit for evaluation and development on the nRF9160 SiP for LTE-M, NB-IoT and GPS. This guide will walk through the steps to take in order to connect a Telnyx SIM to the nRF9160 development kit.

## Updating the firmware of the nRF9160:

1. Download the latest board and SIP modem firmware for this device [here](https://www.nordicsemi.com/Products/Development-hardware/nrf9160-dk/download).

2. Once both firmwares are downloaded, open up your file manager and extract the board firmware. The zip file has the file name: `nrf9160dk_fw_0000-00-00_xxxxxxx.zip.` Do NOT extract the SIP modem firmware labeled `mfw_nrf9160_x.x.x.zip.`

3. Download and install the latest nRF Connect application for your operating system [here](https://www.nordicsemi.com/Products/Development-tools/nrf-connect-for-desktop/download#infotabs).

4. Once installed, open up the application and install the following modules:

* LTE Link Monitor
* Programmer
* Trace Collector

<img src="https://mintcdn.com/telnyx/VYiRDGy8TCRNJLEC/img/nordic_image_2.png?fit=max&auto=format&n=VYiRDGy8TCRNJLEC&q=85&s=0eaf1468993d22e71dce1eb090a6c368" alt="Install the following modules on your nRF9160" width="512" height="271" data-path="img/nordic_image_2.png" />

5. Look at the front of the device and make sure it's in debug mode as shown below.

<img src="https://mintcdn.com/telnyx/M104dP2YWeqFiyN4/img/untitled_design__17_.jpg?fit=max&auto=format&n=M104dP2YWeqFiyN4&q=85&s=9ab43d8608d8e90c8087547989afc04d" alt="Ensure the nRF9160 device is in debug mode." width="512" height="384" data-path="img/untitled_design__17_.jpg" />

6. Connect the device to the computer via a microUSB cable and turn on the device using the power switch located at the bottom left corner of the device.

7. Open up the `Programmer` application and select the device denoted `PCA10090`.

8. Drag and drop the firmware file into the file memory layout box then select `Erase & write` to update the firmware. The left box will show patterns when the update is in progress. Once the update is complete, the left box will display a `Device is connected` message.

<img src="https://mintcdn.com/telnyx/VYiRDGy8TCRNJLEC/img/nordic_image_5.png?fit=max&auto=format&n=VYiRDGy8TCRNJLEC&q=85&s=30e9c14a1a517a8c22f902e4cc3fd221" alt="The nRF9160 firmware update is complete" width="1482" height="602" data-path="img/nordic_image_5.png" />

9. Now, we'll update the modem firmware. Scroll the right toolbar to the bottom of the screen. Select `Update modem` under the Cellular Modem section and click on the SIP modem firmware that was downloaded in step 1. Then click `Write`.

* The zip file has the following filename: `mfw_nrf9160_x.x.x.zip.`

<img src="https://mintcdn.com/telnyx/VYiRDGy8TCRNJLEC/img/nordic_image_7.png?fit=max&auto=format&n=VYiRDGy8TCRNJLEC&q=85&s=c4200f4a5a00d0e0585808f7781f9c1e" alt="Update nRF9160 modem firmware" width="971" height="461" data-path="img/nordic_image_7.png" />

10. Once the modem updates are complete, turn off the device by using the power switch located at the bottom left corner and disconnect the device from the computer.

## Connecting the nRF9160 device to your Telnyx SIM:

1. Insert your Telnyx SIM card into the nRF9160 device (this device uses nano-sim). Make sure to insert in the correct orientation as notated on the development kit.

<img src="https://mintcdn.com/telnyx/M104dP2YWeqFiyN4/img/untitled_design__18_.jpg?fit=max&auto=format&n=M104dP2YWeqFiyN4&q=85&s=486d660630ffe3c3472ea8b105abc53b" alt="Insert the Telnyx SIM card into the nRF9160 device." width="512" height="503" data-path="img/untitled_design__18_.jpg" />

2. Connect the nRF9160 device to the computer and power on the device.

3. Open up the nRF Connect application and launch `LTE Link Monitor`.

4. In the `Select Device` dropdown menu, select `PCA10090`. The LTE Link Monitor display will update and run preselected AT commands. Allow 10-15 seconds for it to complete and the device will automatically connect to the network.
   Verify connectivity in the information tab located on the right side of your display.

<img src="https://mintcdn.com/telnyx/VYiRDGy8TCRNJLEC/img/nordic_image_8__1_.png?fit=max&auto=format&n=VYiRDGy8TCRNJLEC&q=85&s=e0ed3d848bc8ceed0769dfa84ef2e5d6" alt="Verify connectivity of your nRF9160 device." width="1473" height="859" data-path="img/nordic_image_8__1_.png" />

That's it! You've connected the Telnyx SIM to the nRF9160 development kit.