root@Celerway000d50010f28:~# cat /proc/cpuinfo
system type : MediaTek MT7620A ver:2 eco:6
machine : Sanlinking Technologies D240
https://openwrt.org/toh/hwdata/sanlinking/sanlinking_d240
Same as ZBT WE-826
Flash sucsess with https://downloads.openwrt.org/releases/22.03.2/targets/ramips/mt7620/openwrt-22.03.2-ramips-mt7620-zbtlink_zbt-we826-16m-squashfs-sysupgrade.bin
Set computer ip to 192.168.1.2 255.255.255.0
Hold in reset button while power up (ca 15 sec), then enter Http://192.168.1.1 for upload firmware and flash.