> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Set up the device
> After flashing Qualcomm Linux, connect the serial console, verify the version, and bring up network, SSH, and display on the IQ-9075 EVK.
After you have [flashed Qualcomm Linux](./update-software/overview), use this page to bring the device up: connect the debug serial console, verify the software version, get on the network, and connect over SSH and display.
If you have **not** flashed the device yet, start with [**Update software**](./update-software/overview).
## Set up the debug UART
The debug UART gives you a serial console into the device — your primary way to log in and check the device after flashing.
1. Connect one end of a micro-USB cable to the micro-USB port on the IQ-9075 EVK.
2. Connect the other end to your host computer.
3. Open the serial console for your host OS:
Install `screen`:
```shell theme={null}
sudo apt update
sudo apt install screen
```
List the serial devices:
```shell theme={null}
ls /dev/ttyUSB*
```
**Sample output:**
```shell theme={null}
/dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2 /dev/ttyUSB3
```
The IQ-9075 EVK's onboard adapter exposes four serial devices; the **main console is the second one** (`/dev/ttyUSB1`). Open it at 115200 baud:
```shell theme={null}
sudo screen /dev/ttyUSB1 115200
```
1. Download [**PuTTY**](https://putty.software/) and complete the installation.
2. Open PuTTY and select **Serial**.
3. Set the **Serial line** to the COM port detected in **Device Manager**, and the speed to **115200**.
The FTDI adapter exposes multiple COM ports. Converter B (the **second** functional port) carries the Main Domain console. Right-click each COM port → **Properties** → check the **Location** field to identify it.
If the UART port isn't detected, install the FTDI driver:
* x86: [USB-to-UART serial driver](https://ftdichip.com/wp-content/uploads/2023/09/CDM-v2.12.36.4-WHQL-Certified.zip)
* Arm: [FTDI VCP drivers](https://ftdichip.com/drivers/vcp-drivers/)
List the serial devices:
```shell theme={null}
ls /dev/cu.*
```
Find your device node (for example, `/dev/cu.usbserial-DM03SDQQ`) and open it at 115200 baud:
```shell theme={null}
screen /dev/cu.usbserial-DM03SDQQ 115200
```
4. Press **Enter** to bring up the login prompt, then sign in:
* **Username:** `root`
* **Password:** `oelinux123`
## Verify the software version
Confirm the device is running Qualcomm Linux:
```shell theme={null}
cat /etc/os-release
```
**Expected output:**
```text theme={null}
ID=qcom-distro-sota
NAME="Qualcomm Linux Reference Distro(OTA-enabled)"
VERSION="2.0"
PRETTY_NAME="Qualcomm Linux Reference Distro (OTA-enabled) 2.0"
```
Check the kernel version:
```shell theme={null}
uname -a
```
**Expected output:**
```text theme={null}
Linux iq-9075-evk 6.18.30-... #1 SMP PREEMPT ... aarch64 GNU/Linux
```
If the version doesn't match, or you can't reach a login prompt at all, the image is missing or outdated. Go back to [**Update software**](./update-software/overview) and flash the latest Qualcomm Linux.
## Connect to the network
Bring the device online over Wi-Fi or Ethernet so you can use SSH and download artifacts.
### Wi-Fi
The device runs Wi-Fi in station mode. Connect with `nmcli`:
```shell theme={null}
nmcli dev wifi connect password
```
**Example** — network `QualcommWiFi`, password `1234567890`:
```shell theme={null}
nmcli dev wifi connect QualcommWiFi password 1234567890
```
**Sample output:**
```text theme={null}
Device 'wlp1s0' successfully activated with 'd7b990bd-3b77-4b13-b239-b706553abaf8'.
```
Verify the connection and get the IP address:
```shell theme={null}
nmcli -p device
ip addr show wlp1s0
```
Confirm internet access:
```shell theme={null}
ping qualcomm.com
```
### Ethernet
Connect an Ethernet cable from the RJ45 port on the EVK to your network router, then read the IP address:
```shell theme={null}
ip addr show end0
```
The value of `inet` in the output is the device's IP address.
## Connect over SSH
SSH gives you a network terminal into the device from your host computer.
Ensure your host computer is on the same network as the device.
1. Find the device IP address (from the network step above):
* Ethernet: `ip addr show end0`
* Wi-Fi: `ip addr show wlp1s0`
2. Connect from the host:
```shell theme={null}
ssh root@
```
**Example:**
```shell theme={null}
ssh root@192.168.0.222
```
3. Enter the password `oelinux123` when prompted.
## Connect a display
Connect a monitor to **DisplayPort0 (JEDP0)** or **JEDP1** on the EVK using an **active** Mini DisplayPort-to-DisplayPort cable (included in the box), or an **active** Mini DisplayPort-to-HDMI adapter (not included).
Display output works only through the DisplayPort connectors. There is no display output through the USB Type-C ports.
Power on the device and verify the display shows the expected startup output.
## SBC (Single Board Computer) mode
To use the EVK as a standalone computer with a keyboard, mouse, and monitor:
* **Power:** connect the 12 V adapter.
* **Serial console:** micro-USB to your host for UART logs (optional once set up).
* **USB hub:** connect a powered USB hub to a USB Type-C port for multiple peripherals.
* **Keyboard & mouse:** plug into the USB hub.
* **USB camera:** connect to the USB hub (must be UVC-compliant).
* **MIPI camera:** attach to a MIPI CSI connector on the board.
* **Display:** Mini DisplayPort to DisplayPort cable, or an active Mini DisplayPort-to-HDMI adapter.
## Next steps
* [Explore peripherals and interfaces](./peripherals-interfaces/peripheral_interface_overview)