Hacking [Question] Removing A9LH?

zakeblast · Jun 22, 2017

Is this at all possible? I have 3 New3DS consoles, and all have A9LH installed.
I no longer have access to the NAND backups, as everything has been tested and working, and i havent wanted to do anything nand related or anything that could effectively brick my 3DS's.

So yea, can it be removed? If so, do i need the nand, or would that just make it easier?
(Yes, i did a quick search on the forum and couldnt find anything fully relevant to what im asking)

Quantumcat · Jun 22, 2017

You can remove using SafeArm9Installer, it has an uninstall option. However, if you modified any system titles (like changing your SecureInfo_A file etc), your console will brick without a9lh. This is why restoring a previous NAND backup is recommended because then all the system files will be correct ones and you know you won't have a brick.

sleepymanakete · Jun 23, 2017

Quantumcat said:
You can remove using SafeArm9Installer, it has an uninstall option. However, if you modified any system titles (like changing your SecureInfo_A file etc), your console will brick without a9lh. This is why restoring a previous NAND backup is recommended because then all the system files will be correct ones and you know you won't have a brick.

Would doing the 9.2.0 CTRTransfer, be a "clean" backup?

Jhynjhiruu · Jun 23, 2017

sleepymanakete said:
Would doing the 9.2.0 CTRTransfer, be a "clean" backup?

Well... As people have been saying ntrboothax will allow you to unbrick by installing a 9.2.0 CTRTransfer image, probably yes.

Quantumcat · Jun 23, 2017

sleepymanakete said:
Would doing the 9.2.0 CTRTransfer, be a "clean" backup?

I don't think a CTR transfer will overwrite the friend code file or the SecureInfo_A file, both of which can cause issues if modified and a9lh removed, so I don't think that will help. I'm only about 65% sure though so I won't be surprised if someone tells me this isn't true.

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Jhynjhiruu said:
Well... As people have been saying ntrboothax will allow you to unbrick by installing a 9.2.0 CTRTransfer image, probably yes.

You can install b9s with NTRBoothax, so that doesn't apply for someone wanting to uninstall it or a9lh.

zakeblast · Jun 23, 2017

Quantumcat said:
You can remove using SafeArm9Installer, it has an uninstall option. However, if you modified any system titles (like changing your SecureInfo_A file etc), your console will brick without a9lh. This is why restoring a previous NAND backup is recommended because then all the system files will be correct ones and you know you won't have a brick.

It never even occurred to me that the installer should be the first place to look for an uninstall option, thanks!

Hacking [Question] Removing A9LH?

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