1. Clector

    Clector GBAtemp Maniac
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    There's photos of the 227E board.
    IMG_0009.JPG IMG_0011.JPG
    By the way, I have a problem with the 22FC, some ROMs write but some doesn't work when booted with a blank screen, but I think that's normal. But there's an specific ROM that either clean or patched for SRAM doesn't finish writing it and gets stuck at 50%, the only difference it's that's 16 MB instead of 8 MB, but it shouldn't be a problem with the cart because the original ROM that was in it is 32 MB and it rewrites fine. What could be causing that problem?
    Edit: It seems to get stuck at 50% with any 16 MB ROM.
     
    Last edited by Clector, May 2, 2021
  2. MarioMasta64

    MarioMasta64 hi. i make batch stuff and portable shiz
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    it could be possible that it has to write the full amount of the cart
    try opening it in a hex editor and doubling its size with 0's and see if it works
    this is just a guess tho
     
  3. Clector

    Clector GBAtemp Maniac
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    It gets stuck at 25% instead, which is kind of the same I guess.
     
  4. MarioMasta64

    MarioMasta64 hi. i make batch stuff and portable shiz
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    that seems to suggest its writing it half and half and changing which half it stores in, making 8mb go in one half and 8mb in another and so on(?)

    just my guess tho based on how you say it

    try an 8mb rom and see what happens
     
  5. Clector

    Clector GBAtemp Maniac
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    8MB ones work fine.
     
  6. MarioMasta64

    MarioMasta64 hi. i make batch stuff and portable shiz
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    so if its indeed 32mb then yea it seems like something switches between 8mb memory sections during the writing process
    idk how youd be able to tell how to make it do that but maybe markings on the chips might have clues :unsure: at the very least you can write 8mb roms at the moment
     
  7. OmarElsayed

    OmarElsayed Member
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    Is this kind of repro supported?
     

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  8. fredito1212

    fredito1212 Member
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    Hi, i have a question, can i do this on gb/gbc bootlegs with gb/gbc backups?
     
  9. cearp

    cearp 瓜老外
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    ds can't play gb/gbc games - so I'm certain this homebrew can't, and I highly doubt it would be possible in the future
     
  10. duwen

    duwen Old Man Yoshi
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    Did anyone have any luck with this approach? Repros I've dumped won't burn back, and won't open in emulators.
    If the Aliexpress repro producers are able to save patch the roms so easily it must be a relatively simple procedure.
     
  11. VROdin

    OP VROdin Developer
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    Soon i try make method for gba/gbc
     
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