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Thread: Preventing a boot2 update with boot2v5 (or higher)

  1. #11
    Retired WiiHacks Staff Krafter's Avatar
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    I'll test it. I'm not sure how soon I will get to it as I have some other things in line but I will give it a shot.

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    Senior Member JoostinOnline's Avatar
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    Quote Originally Posted by Krafter View Post
    I'll test it. I'm not sure how soon I will get to it as I have some other things in line but I will give it a shot.
    If this is dangerous for your Wii, please don't try it (or at least don't blame me if it goes wrong ).
    "Macs are the Perfect Computers," said the Perfect Idiot.

  3. #13
    New Member Binary Wave's Avatar
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    Quote Originally Posted by Krank
    Did I say rename it? No I said change it to v5. Meaning change the version number manually... not rename the file. Again, I wouldn't do this and there is really no reason to update boot2 as there is no reason to update your wii (via official update) so it will never be overwritten.
    It was an assumption because what you said was unclear to me. (Rest of post was deleted by me because you already answered it.)

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    Senior Member Cile's Avatar
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    Krafter did you get a chance to test this....

  5. #15
    Retired WiiHacks Staff Krafter's Avatar
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    I haven't tried it yet. I need to wait until I have a Wii that I don't care to sacrifice. I don't know how the Wii will like a Boot2v5. Since there isn't a way to downgrade Boot2, it may end up being an unrecoverable brick.

    I have a mobo coming that I just may try it on. If it bricks, then I'll only be out $30.

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  7. #16
    Junior Member streamlinehd's Avatar
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    Quote Originally Posted by JoostinOnline View Post
    I have been messing with SNEEK lately, and I noticed that it has the version of boot2 as v5 so it doesn't get overwritten. Would that be possible to do outside of SNEEK (on the actual Wii), or can it only be done with a virtual NAND? It is my understanding that boot2 can only be updated with an app like Dop-Mii, but not a wad manager. Is that correct?

    I know this would dangerous, and I don't plan on doing it. I just wondered if it was possible. If it was (and there was a safe way of doing it), it would prevent Nintendo from overwriting bootmii as boot2. It would especially be useful for System Menu X.
    Yes Joostin you are correct in saying boot2 can't be installed by Wad Manager. The only two apps I know of that are capable of installing or altering boot2 are the Hackmii Installer and Dop-Mii. The Hackmii installer obviously alters boot2 for Bootmii and I don't believe Dop-Mii is capable of installing anything over boot2v4 if I remember correctly. You can easily patch boot2 to v5 or even v65535 with a hex editor by locating the correct offsets and changing them from 00 04 to 00 05 for version 5 or to FF FF for v65535. Installing it is not so easy because there are no apps I know of that will do it. The only thing I can think of that would work is to open a nand.bin with a hex editor, patch boot2 to what ever version you want, reinstall the patched nand.bin with a NAND programmer (like Infectus). Unfortunately, Bootmii Restorer won't get the job done because it skips the boot blocks (0-7) when doing a restore.

    I can provide the offsets if someone with a programmer wants to test this out. I may even give it a shot at some point just to see what happens. This method wouldn't update the eeprom so you would be able to go back to boot2v4 if something went wrong.
    Last edited by streamlinehd; 02-13-2011 at 12:08 PM.
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  9. #17
    Retired WiiHacks Staff Krafter's Avatar
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    I can provide the offsets if someone with a programmer wants to test this out. I may even give it a shot at some point just to see what happens. This method wouldn't update the eeprom so you would be able to go back to boot2v4 if something went wrong
    I'll give it a shot like I said. Just give the offsets and I'll try it on a board I have coming in. You also sparked my interest on something else. If the Boot2 version is stored in an "eeprom" couldn't that be changed to upgrade or even downgrade a Boot2 version?

  10. #18
    Junior Member streamlinehd's Avatar
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    Quote Originally Posted by Krafter View Post
    I'll give it a shot like I said. Just give the offsets and I'll try it on a board I have coming in. You also sparked my interest on something else. If the Boot2 version is stored in an "eeprom" couldn't that be changed to upgrade or even downgrade a Boot2 version?
    Yes of course the eeprom can be reprogrammed if you have the know how to do so. This is why boot2 has the ability to be upgraded as opposed to boot1 which can't be changed at all. Unlike boot1 which has its hash stored in the OTP section of Starlet, boot2 just has it's version stored in the eeprom which can be reprogrammed.
    Last edited by streamlinehd; 02-16-2011 at 05:51 AM.
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