Kind of the inverse of this thread, the purpose is self explanatory, I think we all could learn a thing or two from our attempts/failures and I hope some of you admits that sometimes things just can't be saved/fixed despite all efforts.
I'll start with this failed attempt: Super Mario Bros. Deluxe.
I've been trying to get rid of my consoles because I believe physical media is dying slowly and is not future proof, so I'm testing my things to check what I can keep and what not. So I inserted this Super Mario Bros. Deluxe cartridge to my GBC and it didn't boot.
Couple years ago, I fixed ("fixed"
) this exact same cartridge after I found a cold solder point in the SRAM chip, so naturally that was my suspicion this time again. I reflowed every pin of every integrated and the cartridge not only did not boot but actually turned off my GBC as soon as I turned it on. The cartridge was working fine and left it working since that last time I reflowed the chips, but that was 2 years ago I think.
I then checked continuity between the pins on the edge and their respective points on every integrated, and there was no continuity issues, ie, no broken traces.
Then, I assumed solder bridges, so I used my phone camera in Macro Mode and checked each pin, there were no bridges at all.
With no bridges and no broken traces I began to think about voltage issues.
I measured VCC against Ground and got a solid Ohm resistance, no drops and no shorts, so the possibilities of a faulty board was minimal, close to non existent.
Then, I checked resistance on each integrated (VCC against integrated's ground pin) and still no issues there, all the integrated chips measured a steady .550 Ohms.
Lastly, I removed the battery (which measured 0.400v) and reflowed the MBC-5 chip again, and only then the cartridge stopped turning off my Gameboys, but it delivered a garbled Nintendo logo, meaning not even getting a clean boot sequence.
This probably means that the ROM got somehow corrupted overtime preventing it from booting altogether since it can't reach the boot sequence in the first place, maybe humidity, maybe broken traces inside the chip, who knows?
There's no amount of reflowing or measuring that can fix a broken ROM chip, sadly, there's no way to overwrite the ROM with another one...
Rest in peace Super Mario Bros. Deluxe.
I actually never played it, it was stored in a box for god knows how long, probably since 2016 when I found it on the flea market.
I'll start with this failed attempt: Super Mario Bros. Deluxe.
I've been trying to get rid of my consoles because I believe physical media is dying slowly and is not future proof, so I'm testing my things to check what I can keep and what not. So I inserted this Super Mario Bros. Deluxe cartridge to my GBC and it didn't boot.
Couple years ago, I fixed ("fixed"
) this exact same cartridge after I found a cold solder point in the SRAM chip, so naturally that was my suspicion this time again. I reflowed every pin of every integrated and the cartridge not only did not boot but actually turned off my GBC as soon as I turned it on. The cartridge was working fine and left it working since that last time I reflowed the chips, but that was 2 years ago I think.I then checked continuity between the pins on the edge and their respective points on every integrated, and there was no continuity issues, ie, no broken traces.
Then, I assumed solder bridges, so I used my phone camera in Macro Mode and checked each pin, there were no bridges at all.
With no bridges and no broken traces I began to think about voltage issues.
I measured VCC against Ground and got a solid Ohm resistance, no drops and no shorts, so the possibilities of a faulty board was minimal, close to non existent.
Then, I checked resistance on each integrated (VCC against integrated's ground pin) and still no issues there, all the integrated chips measured a steady .550 Ohms.
Lastly, I removed the battery (which measured 0.400v) and reflowed the MBC-5 chip again, and only then the cartridge stopped turning off my Gameboys, but it delivered a garbled Nintendo logo, meaning not even getting a clean boot sequence.
This probably means that the ROM got somehow corrupted overtime preventing it from booting altogether since it can't reach the boot sequence in the first place, maybe humidity, maybe broken traces inside the chip, who knows?
There's no amount of reflowing or measuring that can fix a broken ROM chip, sadly, there's no way to overwrite the ROM with another one...
Rest in peace Super Mario Bros. Deluxe.
I actually never played it, it was stored in a box for god knows how long, probably since 2016 when I found it on the flea market.



















