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Gooseberrysoda
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Virtual Boy Homebrew not functioning

by Gooseberrysoda Tue May 11, 2021 9:30 pm

Hi all, bought a used repro of Bound High on eBay a few years back-- by the time I got around to getting the VB fixed, I realized the game didn't work, but it was way too late to contact the seller. Anyone have experience fixing a repro'd game cart?
Sega Genesis (Model 2), Sega CD, Sega 32X, SNES, Nintendo 64, Gamecube, Game Boy Family, Phillips CD-i Model 910, NES, Atari 5200, Virtual Boy, Atari Jaguar, Playstations 3-4
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Ziggy587
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Re: Virtual Boy Homebrew not functioning

by Ziggy587 Sat May 22, 2021 9:23 pm

Hey! Sorry for the late reply, but I just saw this post.

Can you elaborate a little on the problem? Does the game simply not boot? Ie: a black screen? And I'm assuming you have already tried cleaning the cart pins really well.
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Gooseberrysoda
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Re: Virtual Boy Homebrew not functioning

by Gooseberrysoda Sun May 23, 2021 9:50 am

Hey, no problem, I just remembered I made this thread myself :lol: Yes, unlike every other cart, it doesn't even register that a game is inside when turned on. Tried blowing, cleaning, etc. Hopefully not a lost cause? It looks like it would be really fun to play on the hardware.
Sega Genesis (Model 2), Sega CD, Sega 32X, SNES, Nintendo 64, Gamecube, Game Boy Family, Phillips CD-i Model 910, NES, Atari 5200, Virtual Boy, Atari Jaguar, Playstations 3-4
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Ziggy587
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Re: Virtual Boy Homebrew not functioning

by Ziggy587 Sun May 23, 2021 11:07 am

It's not a lost cause, it just depends on what you're able to do yourself. Can you open up the cart and post a picture of both sides of the PCB?
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My Sale Thread - I am selling around three quarters of my video game collection as well as some other odds and ends!
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Gooseberrysoda
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Re: Virtual Boy Homebrew not functioning

by Gooseberrysoda Sun Jun 06, 2021 12:04 am

Hey there! Finally tracked down the correct bit to crack it open. Here's what's inside. https://ibb.co/WPnrKyT
Sega Genesis (Model 2), Sega CD, Sega 32X, SNES, Nintendo 64, Gamecube, Game Boy Family, Phillips CD-i Model 910, NES, Atari 5200, Virtual Boy, Atari Jaguar, Playstations 3-4
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Ziggy587
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Re: Virtual Boy Homebrew not functioning

by Ziggy587 Sun Jun 06, 2021 6:35 pm

Would you be able to post the image(s) to the board using the image tags?

e.g.:
Code: Select all
[img] url [/img]
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My Sale Thread - I am selling around three quarters of my video game collection as well as some other odds and ends!
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Gooseberrysoda
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Re: Virtual Boy Homebrew not functioning

by Gooseberrysoda Mon Jun 07, 2021 11:54 pm

Of course, here you go:
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Sega Genesis (Model 2), Sega CD, Sega 32X, SNES, Nintendo 64, Gamecube, Game Boy Family, Phillips CD-i Model 910, NES, Atari 5200, Virtual Boy, Atari Jaguar, Playstations 3-4
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Ziggy587
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Re: Virtual Boy Homebrew not functioning

by Ziggy587 Tue Jun 08, 2021 7:24 am

Hmm, well there's not a lot going on in that cart. There's just a single flash chip, LH28F160S5T, and it appears to be 5v tolerant. There's only two possible reasons I can think of why it's not working. One or more of the pins on the flash chip might have a bad connection, in which case it just has to be reflown. Or the data on the flash chip is bad and it needs to be reflashed.

I would first try and reflow the pins, there's a good chance that it'll work after that. If that doesn't do it, then I would pull the chip and verify the data on it (and reflash if needed). And if that doesn't work, then the flash chip is bad and needs to be replaced.
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My Sale Thread - I am selling around three quarters of my video game collection as well as some other odds and ends!
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