So my friend was running a pretty old system firmware (luma + a9lh). Today he updated it to the newest firmware (11.4). Post updating it, it would turn on and immediately turn off. I know the solution was to update the luma build but he didn't. He freaked out and googled how to enter recovery mode and well you guessed it , updated the system in recovery mode causing a9lh to be removed. On the bright side, he still has a nand back I made for him a while ago. My question is, is there any way to Restore this nand backup via software on 11.4 ? He is not comfortable with hard modding it unfortunately.