EDIT: The emuNAND Tool has been updated and now works again!

Since right now the emuNAND Tool doesn't work, I've come up with a workaround:

Programs you will need:

• USB Image Tool
• EaseUS Partition Master

Both these programs are free.

PLEASE NOTE: Doing the following method will make a 1:1 copy of the source SD card and put it on the target SD card. It will transfer everything, not just emuNAND.

How to:

1. Plug the source SD card into your PC, this is the card that you want to transfer emuNAND from.
2. Run USB Image Tool
3. Click on the SD card and then "Backup"
4. Remove the source SD Card and replace it with the target SD Card.
5. Click on the new SD card, locate the backup image and then "Restore"
6. Run EaseUS Partition Master and click on "EaseUS Partition Master Free"
7. Right click on the SD card's partition with data on it, it should be in between two Unallocated partitions and choose "Resize/Move Partition"
8. Click on the MIDDLE PARTITION, the one that has the data on it and expand it TO THE RIGHT (VERY IMPORTANT)
9. Click OK
10. Click Apply on the top left, then OK
11. Done!

Important Information:
Currently with Gateway 3.1.0 there's a (visual?)bug with higher capacity microSD cards. When running emuNAND it doesn't show the "GW3D" in settings, before the version number telling you if you're in emuNAND or not, because of this its very risky to update emuNAND.
With my guide you can use a 4gb microSD card (where the visual bug doesn't happen) to format emuNAND, update to the latest firmware and transfer it onto a higher capacity microSD card.

Don't panic! - When the transfer is complete and you run the updated emuNAND on your new 3ds it still wont show the "GW3D" prefix before the version number. It'll just say 9.5.0-22E or something along those lines.

Any questions, feel free to ask

 

[0x40]

It'll tell me I have to select a specific volume, saying that one isn't selected

Try 'select volume 5' then 'select partition 0' and then 'assign'

 

[Gyrobax]

Try 'select volume 5' then 'select partition 0' and then 'assign'

tried that too, and it gave the same message

 

[0x40]

tried that too, and it gave the same message

That's really strange. Can you take another screenshot?
Edit: If you list volume/partition again, are they both selected?

 

[yrkomm16]

I just got an error when i tried to expand my new sd card in EasyUS Partition Master 12.0.

 

[mezo210]

done this too many times is anyone willing to help used eas partition folloewed all steps get the eror many have tried with aoemi it fixes the issue and now the files are there but the sd is almost full whne its a 125g and the old file was 16g yes i moved the partition to the right and it delets averythign after appliying

 

[3Bies]

He just copied an existing method. You can use dd to make and restore the image, then any partitioning program (e.g. Disk Utility) should be able to resize the data partition.

Tried that, apparently emunand is a unlocatable file in the sd card and thats why we need to use a image tool to copy every single thing on the card. That way we can transfer emunand to another card, the EasuUSPartition allows you to combine the partitions as the card will read the image as a partition.

--------------------- MERGED ---------------------------

Also i need a little bit of help, whenever I try to merge the partitions it shows me an error, can someone help me with this or show me another partition merge program for fat32?

 

[Angel08]

Also, is the important information only for that type of CFW? I have arm9loaderhax and don't know if that info also goes for it

 

[Nicro]

Since I did not see anything for Linux users yet I just wanted to point out that this works just as well.

1. Make a bit-perfect copy of the old card using dd (or gdiskdump if you want a progress bar):
sudo dd if=/dev/<device-ID of old sd-card> of=sdcard.img bs=1M

2. Copy the image to the new card:
sudo dd if=sdcard.img of=/dev/<device-ID of new sd-card> bs=1M

3. Use gparted or something similar to adjust the end cylinders (partitions) like described above.

4. Enjoy

Be absolutely sure of your device IDs so that you don't break anything, you can look them up in gparted.

@Zaazu Feel free to put this in OP if you want.

--------------------- MERGED ---------------------------

Also, is the important information only for that type of CFW? I have arm9loaderhax and don't know if that info also goes for it

A9LH is not exactly CFW itself but a bootloader as far as I know and should not be affected by the sd card at all, though since it has to boot into something I would check what that something is first.
Generally speaking this method should preserve whatever setup you have on your card, not just Luma.

 

[wownmnpare]

will this work on o3ds to n3ds?

 

[BengiDog]

I'm confused...

 

[rikumax25!]

will this work on o3ds to n3ds?

emunands are console specific

 

[BoxNinPlay]

Help I see nothing in USB Image Tool see print screen for more detail, i can not see any of my disc or SD Card, how do I fix this?

 

[Blank_Jay]

Um when I do all the steps or whatnot the partition size doesn't change to the size of the new SD card. It still stays the same (1.83 GB)

 

[Morloki]

So, just to be sure, I have do follow this tutorial if I want to update my 2GB SD to a 32GB one right? I just need to do this right? I'm good at following instructions, but I need a confirmation first. ^^''

Edit: Well, I did it~ and it worked fine! Thanks!

 

[Xaenor]

Hello. Can you please help me? I've done everything by the instruction, but there's no button "Move/Resize" in the partition manager (see screenshot). Any idea what might cause this?

Upd.: Nevermind, used another program (MiniTool Partition Wizard) and it worked without problems.

 

[kuroii]

tried that too, and it gave the same message

hello. did you manage to fix your issue? I'm having the same problem where my SD card refuses to assign a drive letter to the actual partition.

Instead, it keeps assigning to my emunand portion which I can't read on my pc.

 

[acoll]

i have done this successfully before, just wanted to ask, would this still be possible to do if i wanted to move from 64gb to 32gb? do i just have to make sure that the contents of the source 64 can fit in the 32gb card?

 

[RY0M43CH1Z3N]

i have done this successfully before, just wanted to ask, would this still be possible to do if i wanted to move from 64gb to 32gb? do i just have to make sure that the contents of the source 64 can fit in the 32gb card?

¿?
If you want move content from a SD card to other SD card with less space, you have make sure the files can fit in the SD card with less space (obiously)

 

[oncebuddy]

I just got an error when i tried to expand my new sd card in EasyUS Partition Master 12.0.

I have the same problem as this person. When I tried to resize my partition on my sd card from 16gb (the size of the image) to 64gb (the actual total space on the sd card), I got an error saying that there's a problem updating the FAT directory entry. I am 100% sure that my SD card isn't corrupt as I can still play the games on the sd card on my 3ds. Additionally, the applying of changes will stop at 72% before the error pops up.

Edit: I'm wondering if it has something to do with the allocation unit size? Because my SD card was originally ex-FAT and I formatted it into FAT32 with a cluster size of 512 bytes which isn't the recommended size for a FAT32 partition (but I still did it anyways to save space).

 

[achyoav]

im on the latest luma (B9s), do i need to follow the guide?