Firmware 0.19 (Chris variant) fails to load games from Flash on Game Boy Advance AGB-001 (white screen + audio distortion)

[Scaletta]

Description:

I’m experiencing an issue with firmware 0.19 (Chris variant) on my SuperChris flashcard where games fail to load from Flash when using a Game Boy Advance AGB-001.

The same setup works correctly when used with a Nintendo DS, so the issue appears to be specific to the AGB-001 hardware.

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Steps to Reproduce:
1. Flash firmware version 0.19 (Chris variant).
2. Write a game to Flash with DS or AGB-001.
3. Start the game from flash.

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Expected Behavior:

The game should boot normally from Flash.

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Actual Behavior:

• The screen turns completely white.
• There are noticeable/weird sound distortions.
• The game does not boot.

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Troubleshooting Performed:

• Erased the Flash and reinstalled the game.
• Reflashed the firmware (0.19 Chris variant).
• Verified that the same setup works correctly on a Nintendo DS.
• Games run fine when non running from flash on the AGB-001.

None of the above resolved the issue.

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Environment:

• Firmware version: 0.19 (Chris variant)
• Flashcard: Superchris
• Console where issue occurs: Game Boy Advance AGB-001 (modded with IPS & Battery-pack)
• Console where it works: Nintendo DS
• Game(s) tested: Pokemon Emerald, Pokemon Firered, Mariokart: Super Circuit