> For the complete documentation index, see [llms.txt](https://docs.arkelectron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.arkelectron.com/products/radio/ark-m.2-lte.md). # ARK M.2 LTE ### Prerequisites * A nano-SIM card with a data plan. * The ARK M.2 LTE module. * Correct antennas connected * A Kernel with QMI\_WWAN support (already included in the [ARK Jetson Kernel](https://github.com/ARK-Electronics/ark_jetson_kernel)) ### 1. Install the Nano-SIM Insert the nano-SIM into the ARK M.2 LTE module. ### 2. Build and Flash the Kernel Skip this step if you purchased a pre-flashed ARK Jetson Bundle. The RC7611 requires the QMI\_WWAN kernel module, which is not included by default in Jetpack 6. You will need to manually build and flash the kernel onto the Jetson device. 1. Clone the kernel repository: ```bash git clone https://github.com/ARK-Electronics/ark_jetson_kernel ``` 2. Use the **setup\_source\_build.sh** script to enable the necessary kernel modules. [Follow the instructions in the ARK Jetson Kernel repository](https://github.com/ARK-Electronics/ark_jetson_kernel?tab=readme-ov-file#building-from-source) Once the kernel is built and flashed, boot up the Jetson device. ### 3. Connect to the Device Connect a Micro USB cable and SSH in: ``` ssh jetson@jetson.local ``` ### 4. Determine the Modem Instance Number Run the following command to list the modem instances: ```bash mmcli -L ``` You should see something like: > /org/freedesktop/ModemManager1/Modem/0 \[Sierra Wireless, Incorporated] RC7611 Take note of the **instance number** of the modem (in this case, `0`). ### 5. Configure Initial EPS Bearer Settings Set the initial EPS bearer settings to register the device with the network: ```bash sudo mmcli -m 0 --3gpp-set-initial-eps-bearer-settings="apn=" ``` {% hint style="info" %} T-Mobile APN: **fast.t-mobile.com** AT\&T APN: **broadband** {% endhint %} If successful, it will print: > Successfully set initial EPS bearer properties ### 6. Connect the Modem to the Network Run the following command to connect your device to the network. For example using T-Mobile: ```bash sudo mmcli -m 0 --simple-connect="apn=fast.t-mobile.com,ip-type=ipv4v6" ``` If successful, it will print: > Successfully connected the modem ### 7. Verify the Modem Status To check the modem’s status, run: ```bash mmcli -m 0 ``` Ensure that the state is **connected** and the packet service state is **attached**. Note the first Bearer path at the bottom to determine the Bearer Index: > *** > > Bearer | paths: /org/freedesktop/ModemManager1/Bearer/1 In our case the Bearer Index is 1. ### 8. Query Bearer Settings Use the index of the first bearer path to query the bearer settings. ```bash mmcli -m 0 --bearer=1 ``` Take note of the IPv4 configuration ``` ------------------------------------ IPv4 configuration | method: static | address: 162.177.172.180 | prefix: 29 | gateway: 162.177.172.181 | dns: 10.177.0.34, 10.177.0.210 | mtu: 1500 ------------------------------------ ``` ### 9. Set Up the Wireless Interface Use the values from the above IPv4 configuration for **address**, **prefix**, **gateway**, and **mtu.** 1. Bring up the **wwan0** interface: ```bash sudo ip link set wwan0 up ``` 2. Assign the IP address: ```bash sudo ip addr add
/ dev wwan0 ``` 3. Disable ARP on **wwan0**: ```bash sudo ip link set dev wwan0 arp off ``` 4. Set the MTU: ```bash sudo ip link set wwan0 mtu ``` 5. Add a default route: ```bash sudo ip route add default via dev wwan0 metric 4294967295 ``` {% hint style="info" %} The **metric** option ensures links like WiFi or Ethernet are prioritized ahead of LTE {% endhint %} ### 10. Configure DNS (Optional) To use the DNS servers provided by the cellular connection, run the following commands: ```bash sudo sh -c "echo 'nameserver 10.177.0.34' >> /etc/resolv.conf" sudo sh -c "echo 'nameserver 10.177.0.210' >> /etc/resolv.conf" ``` ### 11. Test the Connection ```bash ping -4 -c 4 -I wwan0 8.8.8.8 ``` ### Troubleshooting * **Modem not registering?** Double-check the APN value. * **Modem not detected?** Ensure the required kernel modules are enabled. * **SIM card inactive?** Make sure your SIM has a valid data plan. ## 3D Model Find the 3D model at --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.arkelectron.com/products/radio/ark-m.2-lte.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.