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Specification: - MT7986 CPU using 2.4GHz and 5GHz WiFi (both AX) - MT7531 switch - 512MB RAM - 128MB NAND flash (MX35LF1GE4AB-Z4I) with two UBI partitions with identical size - 1 multi color LED (red, green, blue, white) connected via GCA230718 (Same as D-Link M30 A1) - 3 buttons (WPS, reset, LED on/off) - 1x 2.5 Gbit WAN port with Maxlinear GPY211C - 4x 1 Gbit LAN ports Disassembly: - There are five screws at the bottom: 2 under the rubber feet, 3 under the label. - After removing the screws, the white plastic part can be shifted out of the blue part. - Be careful because the antennas are mounted on the side and the top of the white part. Serial Interface - The serial interface can be connected to the 4 pin holes next to/under the antenna cables. - Note that there is another set of 4 pin holes on the side of the board, it's not used. - Pins (from front to rear): - 3.3V (do not connect) - TX - RX - GND - Settings: 115200, 8N1 MAC addresses: - MAC address is stored in partition "Odm" at offset 0x81 (for example XX:XX:XX:XX:XX:52) - MAC address on the device label is ODM + 1 (for example XX:XX:XX:XX:XX:53) - WAN MAC is the one from the ODM partition (for example XX:XX:XX:XX:XX:52) - LAN MAC is the one from the ODM partition + 1 (for example XX:XX:XX:XX:XX:53) - WLAN MAC (2.4 GHz) is the one from the ODM partition + 2 (for example (XX:XX:XX:XX:XX:54) - WLAN MAC (5 GHz) is the one from the ODM partition + 5 (for example (XX:XX:XX:XX:XX:57) Flashing via OEM web interface: - Currently not supported because image crypto is not known Flashing via recovery web interface: - This is only working if the first partition is active because recovery images are always flashed to the active partition and OpenWrt can only be executed from the first partition - Use a Chromium based browser, otherwise firmware upgrade might not work - Recovery web interface is accessible via 192.168.200.1 after keeping the reset button pressed during start of the device until the LED blinks red - Upload the recovery image, this will take some time. LED will continue flashing red during the update process - The after flashing, the recovery web interface redirects to http://192.168.0.1. This can be ignored. OpenWrt is accessible via 192.168.1.1 after flashing - If the first partition isn't the active partition, OpenWrt will hang during the boot process. In this case: - Download the recovery image from https://github.com/RolandoMagico/openwrt/releases/tag/M60-Recovery-UBI-Switch (UBI switch image) - Enable recovery web interface again and load the UBI switch image. This image works on the second partition of the M60 - OpenWrt should boot now as expected. After booting, flash the normal OpenWrt sysupgrade image (for example in the OpenWrt web interface) - Flashing a sysupgrade image from the UBI switch image will make the first partition the active partition and from now on, default OpenWrt images can be used Flashing via Initramfs: - Before switching to OpenWrt, ensure that both partitions contain OEM firmware. - This can be achieved by re-flashing the same OEM firmware version again via the OEM web interface. - Flashing via OEM web interface will automatically flash the currently not active partition. - Open router, connect serial interface - Start a TFTP server at 192.168.200.2 and provide the initramfs image there - When starting the router, select "7. Load Image" in U-Boot - Settings for load address, load method can be kept as they are - Specify host and router IP address if you use different ones than the default (Router 192.168.200.1, TFTP server 192.168.200.2) - Enter the file name of the initramfs image - Confirm "Run loaded data now?" question after loading the image with "Y" - OpenWrt initramfs will start now - Before flashing OpenWrt, create a backup of the "ubi" partition. It is required when reverting back to OEM - Flash sysupgrade image to flash, during flashing the U-Boot variable sw_tryactive will be set to 0 - During next boot, U-Boot tries to boot from the ubi partition. If it fails, it will switch to the ubi1 partition Reverting back to OEM: - Boot the initramfs image as described in "Flashing via Initramfs" above - Copy the backed up ubi partition to /tmp (e.g. by using SCP) - Write the backup to the UBI partition: mtd write /tmp/OpenWrt.mtd4.ubi.bin /dev/mtd4 - Reboot the device, OEM firmware will start now Signed-off-by: Roland Reinl <reinlroland+github@gmail.com> Link: https://github.com/openwrt/openwrt/pull/17296 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> |
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