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====== 5G Module Usage======

===== Introduction =====

This page will introduce the usage of [[https://www.khadas.com/product-page/5g-nr-module | RM500Q 5G NR module]].You will learn how to use the 5G module on Khadas SBC.

<WRAP tip >
AT command node is ''/dev/ttyUSB2''.
</WRAP>


===== Preparation =====

  * Disconnect the Khadas SBC power port cable.
  * Insert the 5G module board into the M.2 slot on [[https://www.khadas.com/product-page/m2x-wwan-extension | M2X WWAN Extension]] board.
  * Insert the M2X WWAN Extension board into the SBC.
  * Insert a valid ''Nano SIM'' card on the 5G module.

===== Linux =====

==== Upgrade System ====

You need to [[products:sbc:common:configurations:upgrade-system|]] to latest version.

=== Enable PCIe Port (VIM3 Only) ===

<WRAP important >
If you use the VIM3 board, you need to enable the PCIe function.
</WRAP>


Khadas VIM3 PCIe/USB3.0 share one data port,and the default mode is USB 3.0.So when we need to use 5G module, we need to switch it to PCIe port.

```shell
$ echo 1 > /sys/class/mcu/usb_pcie_switch_mode
$ sudo reboot
```
''Reboot'' the system to bring changes into effect.

==== Disable ModemManager ====

As the ModemManager doesn't support this 5G modem, so you have to disable it and use Quectel QConnectManager to connect to the internet.

```shell
$ sudo systemctl stop ModemManager.service
$ sudo systemctl disable ModemManager.service
```

==== Setup Quectel QConnectManager ====

You need to use ''Quectel QConnectManager'' to connect to the internet.

=== Get Source Code ===


```shell
$ git clone https://github.com/numbqq/quectel-CM.git

```

=== Compile the Source Code ===


```shell
$ cd quectel-CM
$ make
```

==== Configure the Network ====

=== Connect to Internet ===


Execute the command below to connect to internet.

```shell
$ sudo ./quectel-CM &
```

=== Check the Network Node ===

```shell
$ ifconfig rmnet_mhi0.1
rmnet_mhi0.1 Link encap:UNSPEC  HWaddr 02-50-F4-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:10.129.59.93  Mask:255.255.255.252
          inet6 addr: fe80::50:f4ff:fe00:0/64 Scope:Link
          UP RUNNING NOARP  MTU:1500  Metric:1
          RX packets:1089360 errors:0 dropped:0 overruns:0 frame:0
          TX packets:176581 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1521449058 (1.4 GiB)  TX bytes:57525792 (54.8 MiB)

```

If you can see the IP address ''inet addr'' mean the network is fine.

=== Setup DNS ===

You also need to setup the DNS.

```shell
$  echo "nameserver 1.0.0.1" | sudo tee /etc/resolv.conf
```
==== Check Network ====

```shell
$  ping -I rmnet_mhi0.1 khadas.com
```


==== Check Whether use 5G Network ====

===== Andoid =====

It will support automaticly.
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