Checking NAND backups and md5 checksums ?

Discussion in '3DS - Flashcards & Custom Firmwares' started by tri_fin, Mar 28, 2016.

  1. tri_fin
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    tri_fin GBAtemp Regular

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    Feb 7, 2016
    Hi,

    I have a few NAND backups of my now bricked n3dsxl (euro). I would like check them to see if they are ok before I get a hard mod done.

    I have a backup from when I first got the console - 10.3 and then various 9.2 backups.


    I have checked the 9.2 backup using this:
    http://onlinemd5.com

    Against these results:

    https://gbatemp.net/threads/md5-checksums-crc-for-all-9-2-update-packs.408114/
    https://github.com/Plailect/Guide/wiki

    Mine appear to be all different to each other and none of these match these sites. Infact these two sites have different checksum for the n3ds euro 9.2 nands???
     
  2. Just Passing By

    Just Passing By GBAtemp Advanced Maniac

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    Lol a nand backup is a backup of YOUR SYSNAND. Those sites you've linked have the md5 for the downgrade packs to 9.2. Basically, they shouldn't match in any way because they're two completely different things. Even comparing two different nand backups created at different times will show up as having different md5s. Don't worry about it. If it's bricked, it's bricked and if one backup doesn't work, just flash another one.
     
    Last edited by Just Passing By, Mar 28, 2016
  3. tri_fin
    OP

    tri_fin GBAtemp Regular

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    Feb 7, 2016
    Thanks. Of course the update packs and my sysNAND backups ought to be different! The file size is massively different! Wasn't awake when I asked that :)

    Why would backups done at different times on the same firmware have different results? If they were supposed to be identical? Say post System Format 9.2 NANDs...?
     
  4. Just Passing By

    Just Passing By GBAtemp Advanced Maniac

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    Lol. At least you were cautious :ha:

    Because let's say you turn on your 3ds and make a backup right now. And then tomorrow, you turn on your 3ds and make another backup. Even if during that time, you did nothing else but make those backups, data is constantly being moved around, even as you turn your 3ds on, so you'll never get an identical backup unless you were to back them up at the same time. For example, if you were to get a hardmod and backup your nand and then backup your nand again without restarting the 3ds, their md5s would be the same.