# Software update ***Copyright © Quectel Wireless Solutions Co., Ltd. 2026. All rights reserved.*** --- # Software repository configuration The configuration files of software repositories are generally saved in the following locations: **/etc/app/sources.list**: Main repository **/etc/app/sources.list.d/\*.list**: Additional repository At present, the **Debian** system of the **Quectel Pi H1** single-board computer only has one main repository, and additional repositories can be added according to demand in the future. ```bash pi@QuectelPi :~$ cat /etc/apt/sources.list deb https://mirrors.tuna.tsinghua.edu.cn/debian trixie main ``` In the command above, **trixie** is the operating system codename. For details, you can query it with the following command: ```bash pi@QuectelPi :~$ grep VERSION_CODENAME /etc/os-release VERSION_CODENAME=trixie ``` # China repository mirror Please execute the following command to use the **Debian** repository image provided by a third-party: **Note** The availability and download speed of third-party mirrors are maintained by their respective providers. Quectel cannot guarantee their stability. - USTCOSS - - LZUOSS - - Restore Default # Package management tool It can be installed through the terminal command line **apt** tool. As shown in the following figure, click the corresponding icon in sequence to enter the terminal command window: ```{image} images/image_Lc9ebnIlOojrsbxr6tFceUoUnXe.webp :width: 1409px :height: 787px ``` Some commonly used commands are as follows: Update repository configuration: ```bash sudo apt update ``` Upgrade all installed software packages: ```bash sudo apt upgrade ``` Install a new software package: ```bash sudo apt install ``` Uninstall software packages: ```bash sudo apt remove ``` View information on installed software packages: ```bash sudo apt show ``` Search for software packages: ```bash sudo apt search ``` List all installed software packages: ```bash sudo apt list --installed ``` # Installation of deb package Please refer to [Efficiency and office](<../Efficiency and office/Efficiency and office.md>) chapter for the installation method of the deb package. # Software mall Click on the desktop icons in the sequence shown in the figure below to enter the software package **app**. You can click on the search box to find the corresponding software package and proceed with the installation. ```{image} images/image_UXySbcSBwoDT1dxgsOAcpZKOnac.webp :width: 1549px :height: 856px ``` ```{image} images/image_KRgsbbNARoXzaxxX1nXcHVtsnGc.webp :width: 1211px :height: 814px ``` ```{image} images/image_MfqabI5WBocC1qxATWDcLznXnnc.webp :width: 1209px :height: 809px ``` The installed **app** can be viewed by clicking "**Installed**" button at the top. Upgradeable **app** can be viewed by clicking "**Updates**" button at the top.