all is according to expected. Thanks to the seller
Nice router! However it has 16MB flash, not 32MB: root@OpenWrt:~# cat /proc/mtd dev: size erasesize name mtd0: 00030000 00001000 "u-boot" mtd1: 00010000 00001000 "u-boot-env" mtd2: 00010000 00001000 "factory" mtd3: 00fb0000 00001000 "firmware" mtd4: 001840df 00001000 "kernel" mtd5: 00e2bf21 00001000 "rootfs" mtd6: 0099f000 00001000 "rootfs_data" root@OpenWrt:~# free -h total used free shared buff/cache available Mem: 124860 16060 94288 456 14512 77544 Swap: 0 0 0