![]() And, of course, I need to replace all the ports and controls on the GBC motherboard with the ones for the DMG. So the plan of attack is to remove the bottom half of the board, use a DMG button input PCB for the button inputs (I used this in the last mod), and relocate all other necessary parts on the bottom elsewhere inside the case. Well, that, and the buttons don’t line up at all. The reason the bottom half needs to be removed is because the board interferes with the battery compartment on the DMG shell, which doesn’t allow the cartridge connector to fit nicely in the back. There’s a lot of empty space to play with, and most of the parts on the bottom half of the board aren’t necessary for the work I plan to do anyway. The GBC is just a two-layer board, for starters, so knowing what I’m cutting is much easier to determine. Luckily, even though I need to get rid of about 50% of the entire board, after doing some deep dives into the schematics and layout, I found out that the GBC is much easier to deal with than the SP is. Putting the GBC inside the DMG case involves cutting off the bottom half of the board, underneath the cartridge connector. While completing my SP-based DMG, I was shown some actual completed GBC-in-DMG mods (henceforth called “DMG Color”) that I had not seen in my searching before starting the project. Also taking it apart, I realized that some of the work was probably on the shoddier end, due in no part to trying to rush to finish it, and it being my first foray into Game Boy modding. I declared the project dead, and stripped off most of the parts and threw the rest in a box to potentially tinker with in the future (but honestly, it will probably just stay in a box in my closet). Unfortunately, the custom nature of the mod made replacing the SP board more trouble than I deemed it was worth. ![]() I guess that’s what I get for buying a cheap used SP on eBay that was labelled “for parts”. After hours of troubleshooting, with some help from a few very knowledgeable folks on Discord (special thanks to gekkio for his help, and who has an infinite well of Game Boy knowledge on his website and github that I reference a lot), we determined the power management chip on the SP was bad. Eventually, I was unable to boot at all, even without a game cartridge in the slot. Only rarely, but it began occurring more and more often. ![]() ![]() It worked pretty well, but started showing some symptoms that something was not right. And after finishing my SP-in-a-DMG mod, I was really enjoying it… for about two weeks. ![]()
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