Xunlong Orange Pi R1 Boot from Flash

Your firmware is not updated via sysupgrade -F, it is not updated via luci (sysupgrade-compatible).

But if you erase / dev / mtd3 (firmware), and then flash it, then orangepi works.
mtd -e firmware -r write openwrt-sunxi-cortexa7-xunlong_orangepi-r1-squashfs-sysupgrade.bin firmware