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Update on AP2.5 And LT3.0

Discussion in 'Xbox 360 - Modding & Hacking' started by craig1975, Nov 23, 2011.

  1. craig1975

    craig1975 Regular member

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    Taken from C4EVA Speaks.

    Microsoft has rolled out yet another update to the Xbox 360 Fall 2011 Preview Dash, this time bringing it to version 2.0.14696.0. During the preview thus far, backups of MW3, for example, have been observed to flip states between working and not working ? twice over. The same has been found with several other games. It?s no surprise that many are wondering just WTF is going on.

    Contrary to recent rumors, however, MS has not been reverting the dae.bin change/silent update. In actuality, following the silent update of the dae.bin on retail dash 13604, it was quickly determined that MS has been issuing a series of TitleUpdates for certain games (e.g. MW3) alongside the dash updates and dae.bin changes. These TUs appear to be testing the ability for Microsoft to enable/disable triggering of AP2.5 challenges against the disc via the multi-table dae.bin. This is accomplished by patching the default.xex executable with patch files (?.xexp?s) in the TU which patch in or out the Disc ID within the xex header. When the Disc ID is present, and the game has an associated entry in the dae.bin tables, the AP2.5 challenges are triggered. Conversely, when the ID is missing, the system will not be able to find an associated entry in the dae.bin tables, and therefore no AP2.5 checks are performed. This accounts for the success of ?TU trick? that people have been using to temporarily bypass the updated AP2.5 challenges (clearing the cache of existing/newer TUs and tricking the 360 into using an older TU that doesn?t patch the Disc ID into the xex).

    Being ranked at #1 for Xbox LIVE activity according to the latest charts, MW3 makes an ideal candidate for these types of tests by offering the largest possible test group. Based on this, Microsoft have shown that they now have two methods by which to control whether a game is AP2.5-active. A title may be AP2.5-activated either through the addition of associated entries in the dae.bin tables, and as it now stands, by way of TitleUpdates patching in or out the Disc ID.

    Now, you may be asking yourself why MS would want to deactivate AP2.5 on a game. A team member suggested that this may be to allow MS a method for easily disabling AP2.5 for a particular game if it causes issues on retail consoles (this may coincide with the reports of retail copies failing AP2.5 challenges and showing ?Disc Unsupported? errors). Purely speculating here, but testing of these TitleUpdates may also be a sign that Microsoft is preparing to issue AP2.5-enabling TUs for some of the more popular older XGD2 games beyond the original six affected (Assassin?s Creed: Brotherhood, Call of Duty: Black Ops, Call of Duty: Modern Warfare 2, Fable III, Halo Reach, and Need for Speed: Hot Pursuit).
     
  2. jokickarz

    jokickarz Guest

    So has he (C4E) got it sorted and LT+ 3.0 still on the way?
     
  3. craig1975

    craig1975 Regular member

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    Only the man himself can tell you that.I'm only popping this on to give a heads up on what he has found out.
     
  4. eebeejay

    eebeejay Regular member

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    Still a game of cat & mouse...........

    (lucky for us c4e is a lion and microsoft is a rat)
     
    Last edited: Nov 23, 2011
  5. craig1975

    craig1975 Regular member

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    iXtreme LT+ v3.0 to be Released After December 6
    Posted on 2011-11-25 by admin | Translate


    C4eva shared with us in private today some further details about the upcoming iXtreme LT+ v3.0, which is now targetted for release sometime after December 6, 2011. Earlier this week, Microsoft?s Major Nelson announced December 6 as the official release date for the final version of its Fall 2011 Dashboard Update. Scheduling LT+ v3.0 for release after this date will allow c4eva and the team a chance to analyze the final update so as to ensure no additional changes to v3.0 are necessary.

    With the new iXtreme LT+ v3.0, original game discs will need to be analyzed by Xbox Backup Creator in order to gain disc topology data. This data replaces the need for AP2.5/dae.bin data and enables any AP2.5 challenge to be answered correctly. C4eva noted that the topology data method is very efficient ? using only 24kB of space ? and extremely accurate. Due to differences between them, each game will require its own individual set of topology data. A risk of backups being detected poses itself if the same topology data is used between two different titles. This risk is mitigated by using abgx360 to make certain that the backup contains the appropriate topology data.

    Backups will remain the same layout, but will either need to have the topology data inserted by the new abgx360, or be re-dumped with the new Xbox Backup Creator. C4eva reconfirmed that all current AP2.5-active XGD2 and XGD3 backups with old AP25 replay data are not backward-compatible with iXtreme LT+ v3.0 and will indeed need to be patched or re-dumped and re-burned. Non-AP2.5 titles, however, will remain unchanged and do not require re-burning.
     
    Last edited: Nov 26, 2011
  6. eebeejay

    eebeejay Regular member

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    December is a looooooooooonnnng month.
     
  7. craig1975

    craig1975 Regular member

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    Even longer when there's a fix for most xgd3 games except Battlefield 3:(
     
  8. Memnock

    Memnock Active member

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    There's a fix for Battlefield 3. It's not on xbuc.net I guess because of the size.

    Battlefield 3 Fix
    http://www.mediafire.com/?0ro9ih5gkbleg4l
     
  9. craig1975

    craig1975 Regular member

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    Been looking everywhere.Tried one yesterday on an already flagged console and it wouldn't work.I'll try this one and let you know.Cheers again.
     
  10. craig1975

    craig1975 Regular member

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    Didn't work and ive now got a failed AP25 flag.
     
  11. Memnock

    Memnock Active member

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    It's worked for me on 3 different Xboxes. They were NTSC, but I think it's region free. Did you clear your cache 1st?
     
    Last edited: Nov 25, 2011
  12. craig1975

    craig1975 Regular member

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    I did yeah.Done this fix for about 10 people so i know how to do it.Sods law that it doesn't work for me and i get a flag.Oh well i'll have to treat myself to a new slim after xmas.
     
  13. Joe_1981

    Joe_1981 Regular member

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    Sounds like it's time for people to simply use original discs if they really want to play on Live and have a second XBox for the offline, backup games. It's what I've been doing for two years now. Just more of a pain in the ass trying to dodge a banning than it's worth to play a "backup" on Live.
     
  14. Augustwest

    Augustwest Member

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    Hi,

    Just bought an xbox that was manufactured August 8th, 2005. Will the LT 3.0 allow me to play my back up games or is there any mod available that will allow me to play that back up games? Thanks, AW
     

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