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Game Boy cartridge maintenance

April 22, 20251 thread~1 min read
Battery-backed save loss
Battery replacement

Fresh batteries in a couple of recently acquired Game Boy carts, saves backed up and restored using an Open Source Cartridge Reader.

Parts & Tools (2)

Open Source Cartridge Reader v3

Save The Hero Builders OSCR v3, used to back up each cartridge's save before the battery swap and restore it afterward.

Tabbed CR2032 batteries

Solder-tab CR2032 coin cells, soldered straight onto each cartridge board in place of the old tabbed cells. Game Boy carts tab the battery to the PCB, so the replacement has to be a tabbed cell, not a bare coin cell in a holder.

hitmanmcc
hitmanmcc

April 22, 2025· Thread 1

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Installed fresh batteries on a couple of game boy games I acquired recently. Backed up whatever saves they may have had first and then afterwards restored them, using my Open Source Cartridge Reader built by @CartridgeReader. #GameBoy #TheLegendOfZelda

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