After enabled JFFS partition and enable format on next boot, after reboot router i still have unmounted jffs partition in TOOLS>SYSINFO
I have version soft v3.0.0.4.374.37
By this I can not create a script to opt LED at a certain time with this manual:
https://github.com/RMerl/asuswrt-merlin/wiki/Scheduled-LED-control
Sometimes a second reboot is needed.
Also check the System Log for any error message.