s7lx:

The flash size of xiaomi miwifi nano is 16M
but I setup install LEDE on xiaomi miwifi nano, it used 8M
https://lede-project.org/toh/hwdata/xiaomi/xiaomi_miwifi_nano

root@LEDE:~# cat /proc/mtd
dev: size erasesize name
mtd0: 00030000 00010000 "u-boot"
mtd1: 00010000 00010000 "u-boot-env"
mtd2: 00010000 00010000 "factory"
mtd3: 007b0000 00010000 "firmware"
mtd4: 00128233 00010000 "kernel"
mtd5: 00687dcd 00010000 "rootfs"
mtd6: 00440000 00010000 "rootfs_data"

I compile a image by IMAGEBUILDER
after edit lede-imagebuilder-17.01.0-ramips-mt7628.Linux-x86_64/target/linux/ramips/image/mt7628.mk "ralink_default_fw_size_8M" -> "ralink_default_fw_size_16M"

but it is still 8M flash size.