An exception occurred: Arm 9, Prefetch Abort (SvcBreak) on boot.

Discussion in '3DS - Flashcards & Custom Firmwares' started by GShark, Jun 10, 2018.

  1. GShark
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    GShark Member

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    Jun 6, 2018
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    I am getting, An exception occurred: Arm 9, Prefetch Abort (SvcBreak) when I boot. Anyone have any input about this and how to fix it?

    This is happening after fixing a blue screen brick using the Lazarus script, installing B9S, and Luma successfully. Any ideas what to try next?

    @AnalogMan
     

    Attached Files:

  2. Lacius

    Lacius GBAtemp Guru

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    May 11, 2008
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    • When you boot the 3DS while holding the Select button, which version of Luma3DS is displayed at the top of the configuration settings?
    • Have you tried booting without the SD card? If so, what happens?
     
  3. GShark
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    GShark Member

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    Looks like Luma 9.0. Booting without the sd card results in the same error that I posted about up top.
     

    Attached Files:

  4. zoogie

    zoogie playing around in the dsiware

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    Nov 30, 2014
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    Dump your movable.sed and tell us how big it is.

    It's in CTR-NAND
    /private/movable.sed

    You can do this with Godmode9
     
  5. Lacius

    Lacius GBAtemp Guru

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    I know you might have already done this via another means, but as a matter of troubleshooting, I recommend following this guide to perform a CTRTransfer.
     
  6. GShark
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    GShark Member

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    My movable.sed in 1:/sysnand ctrnand/private is 320 bytes. I’m in GM9 but not sure how to dump it.
     
  7. zoogie

    zoogie playing around in the dsiware

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    Ok, if it's 320 bytes then that's not the issue I'm thinking of. You don't have to dump it.
     
  8. GShark
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    GShark Member

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    I completed the ctrtransfer per the guide and everything completed successfully. Still getting error on boot. What next?
     
  9. TurdPooCharger

    TurdPooCharger Brush your teeth.

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    Jan 1, 2018
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    Try removing and reinserting your battery and booting the 3DS without the SD card. It sounds really stupid, but this sometimes fixes weird boot issues.
     
  10. GShark
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    GShark Member

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    I tried the Ctrtransfer in Decrypt9 and it passed except I noticed at the very end it said movable.sed is corrupt. Is that a big cause of concern?
     

    Attached Files:

  11. zoogie

    zoogie playing around in the dsiware

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    Nov 30, 2014
    Micronesia, Federated States of
    So it was the movable.sed, hmm..

    System won't boot without a good movable.sed.

    Try this. Use Godmode9 to change the 6th byte of the movable.sed to 00. That should fix it.
    Edit, on second thoughts, your msed has pretty severe issues to be able to trigger that error.
    https://github.com/d0k3/Decrypt9WIP...60cdd1512a5a6b93d/source/decryptor/keys.c#L94
    In other words, it is badly corrupted somehow.
     
    Last edited by zoogie, Jun 10, 2018
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  12. GShark
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    GShark Member

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    So this is my moveable.sed in hex. This has a lot of 00 already, that normal?
     

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  13. zoogie

    zoogie playing around in the dsiware

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    Nov 30, 2014
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    Yeah, that's not gonna cut it :lol:

    PM me.
     
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  14. GShark
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    GShark Member

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    Jun 6, 2018
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    Hail zoogie, boot issue was from corrupt movable.sed. A new working one fixed the issue. From blue screen to working with lazarus, B9S, Ctrtransfer, and the help of you guys, Thanks.
     
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