Note, if your would like to take the risk and preform a EmuNAND to NAND. You would need GW and Hardmod.
Cause this is really risky, i do ask you to have a HardMod and valid NAND dumps first before ever think of trying this.
Routine A1 - Preparation
1.Dump NAND, several times with hard-moded one to get a correct one. (For example, dump 10 times, and 8 of them have the exact CRC32+MD5 checksum. So you can just flash this one back if needed).
2.And dump NAND through GW. Compare the two files, oh maybe you've already know the difference if you are good at finding things on web.
3.Format EmuNAND with GW, and extract it out with EmuNandTool. Compare this with the GW NAND dump.
Routine A2 - Preparation, alternative
1.Dump NAND, i suggest you do this at least for 10 times. And you can pick out a valid one after collecting all those checksums of CRC or MD5.
2.Dump NAND with GW. Format the EmuNAND.
3.Use MultiNandCreator by
@DarkMatterCore. Inject the valid NAND dump into EmuNAND Partition.
Routine B - Update EmuNAND
4.Get a package of all those update CIAs from that iso site, i personally suggest you to use 9.2.0-20. And store those into SD, with BigBlueMenu CIA. Place devMenu.3ds to GW.
5.Use GW to
launch EmuNAND, with "ARROW-UP" hold until it launched. Enables update.
6.Use GW devmenu.3ds to Install BigBlueMenu CIA into EmuNAND. Then launch it.
7.Use BBM to install the whole folder of CIAs of the update package. Yes, L+R+A.
8.DON'T press Home!.
After installed all those, just hold POWER to shut it down.
9.Launch the GW EmuNAND again, to have it fully initialized. Then power off.
Routine C1 - To flash it back
10.Dump EmuNAND. Checking the offset,
fix the EmuNAND image to HardMod Dump format if needed.
11.Ensure you have a valid HardMod NAND Dump first. Flash the modified EmuNAND binary back to System.
Routine C2 - To flash it back, alternative.
10.Dump EmuNAND. Checking the offset,
fix the EmuNAND image to GW SoftDump format if needed. Save it as NAND.bin and place it to SD root.
11.Launch GW Menu.
Hold "ARROW-UP" when enter the last option (
Downgrade).
And, yes "DownGrade".
Routine D - Checks
12.Now, power on the console, to see if the 9.x is ready for you.
Keep your original NAND HardMod dump.
13.If it failed, you can flash the original HardMod Dump back to restore it. That's why you must have HardMod now