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Joined 2 years ago
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Cake day: August 30th, 2023

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  • Did it get bumped or jostled at all? If you turn it on, can you reproduce the issue by turning it to a certain angle or by tapping it, or by rolling the batteries with the back cover off? There could be a loose contact.
    I do think the power draw theory is solid, though. The GBC might need a new power capacitor (example found via Internet search, tailor to your region). Surface-mount components can be a pain to work with so try everything else first.

    Does this happen with any other games? There’s something in Link’s Awakening that causes extra power draw and screen flicker on my backlight-modded DMG (i.e. already has extra power draw), something like that might help isolate the problem. For Link’s Awakening, I think it was screen transitions, but my memory’s a little fuzzy about the specifics.

    The most likely (and easiest to fix) might just be the battery contacts. Any corrosion or looseness could break the circuit and bad luck had that happen during saving.