Patching a game boy rom for batteryless save @bennvennelectronics
Patching a game boy rom for batteryless save  @bennvennelectronics
Uploaded October 2020 | Updated September 2026, 3 weeks ago
Edit: Sorry about the volume, I'll reupload this evening

A raw unedited recording showing the process of adding code to a standard rom to allow batteryless saving on a chinese bootleg cart.

This was one of the easier ROM's to patch as it uses only 8kbytes of SRAM, there was a lot of unused space in the ROM to fit our code into, and finding the original save routine was fairly easy.

Comment down below if you have any feedback on how to improve this guide. I'll incorporate your feedback into the next, hopefully more polished, patching video.
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BennVennElectronics |

Patching a game boy rom for batteryless save

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