Build emuNAND from one switch to use on another

[gokiburi]

I have a switch that eMMC is broken, fully failed. I have no backup of that one.

I have another two switches that work and work with Atmosphere/Hekate.

I know that there is a way to rebuild eMMC for a broken eMMC from another switch but... I do not want to buy new eMMC (if not necessary).

None of those switches went online and they will never go online.

Is there a way to use working switch to build emuNAND that will work on failed switch without actually functioning eMMC and just boot it directly from emuNAND only?

 

[thesjaakspoiler]

According to this topic that should be possible.
https://gbatemp.net/threads/nand-rebuilding-for-no-backup-broken-emmc.593995/
Instead of dumping the NAND, you will have already build an image of the NAND.
The topic is quite old so maybe there is a newer/better topic out there.
In case you get stuck, just create a new post with the steps you've taken and which topic you used.