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The ZyXEL WSM20 aka Multy M1 is a cheap mesh router system by ZyXEL based on the MT7621 CPU. Specifications ============== SoC: MediaTek MT7621AT (880MHz) RAM: 256MiB Flash: 128MiB NAND Wireless: 802.11ax (2x2 MT7915E DBDC) Ethernet: 4x 10/100/1000 (MT7530) Button: 1x WPS, 1x Reset, 1x LED On/Off LED: 7 LEDs (3x white, 2x red, 2x green) MAC address assignment ====================== The MAC address assignment follows stock: The label MAC address is the LAN MAC address, the WAN address is read from flash. The WiFi MAC addresses are set in userspace to label MAC + 1 and label MAC + 2. Installation (web interface) ============================ The device is cloud-managed, but there is a hidden local firmware upgrade page in the OEM web interface. The device has to be registered in the cloud in order to be able to access this page. The system has a dual firmware design, there is no way to tell which firmware is currently booted. Therefore, an -initramfs version is flashed first. 1. Log into the OEM web GUI 2. Access the hidden upgrade page by navigating to https://192.168.212.1/gui/#/main/debug/firmwareupgrade 3. Upload the -initramfs-kernel.bin file and flash it 4. Wait for OpenWrt to boot and log in via SSH 5. Transfer the sysupgrade file via SCP 6. Run sysupgrade to install the image 7. Reboot and enjoy NB: If the initramfs version was installed in RAS2, the sysupgrade script sets the boot number to the first partition. A backup has to be performed manually in case the OEM firwmare should be kept. Installation (UART method) ========================== The UART method is more difficult, as the boot loader does not have a timeout set. A semi-working stock firmware is required to configure it: 1. Attach UART 2. Boot the stock firmware until the message about failsafe mode appears 3. Enter failsafe mode by pressing "f" and "Enter" 4. Type "mount_root" 5. Run "fw_setenv bootmenu_delay 3" 6. Reboot, U-Boot now presents a menu 7. The -initramfs-kernel.bin image can be flashed using the menu 8. Run the regular sysupgrade for a permanent installation Changing the partition to boot is a bit cumbersome in U-Boot, as there is no menu to select it. It can only be checked using mstc_bootnum. To change it, issue the following commands in U-Boot: nand read 1800000 53c0000 800 mw.b 1800004 1 1 nand erase 53c0000 800 nand write 1800000 53c0000 800 This selects FW1. Replace "mw.b 1800004 1 1" by "mw.b 1800004 2 1" to change to the second slot. Back to stock ============= It is possible to flash back to stock, but a OEM firmware upgrade is required. ZyXEL does not provide the link on its website, but the link can be acquired from the OEM web GUI by analyzing the transferred JSON objects. It is then a matter of writing the firmware to Kernel2 and setting the boot partition to FW2: mtd write zyxel.bin Kernel2 echo -ne "\x02" | dd of=/dev/mtdblock7 count=1 bs=1 seek=4 conv=notrunc Signed-off-by: Andreas Böhler <dev@aboehler.at> Credits to forum users Annick and SirLouen for their initial work on this device
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Sunshine!
Download
Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.
If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.
An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:
Development
To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
Requirements
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.6+ rsync subversion unzip which
Quickstart
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Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.
Related Repositories
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called opkg. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
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LuCI Web Interface: Modern and modular interface to control the device via a web browser.
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OpenWrt Packages: Community repository of ported packages.
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OpenWrt Routing: Packages specifically focused on (mesh) routing.
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OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).
Support Information
For a list of supported devices see the OpenWrt Hardware Database
Documentation
Support Community
- Forum: For usage, projects, discussions and hardware advise.
- Support Chat: Channel
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0