Anybody heard of Dreamcast BIOS v1.01c?

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megavolt85
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Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by megavolt85 »

MoeFoh wrote: Curious if the BIOS is region free, he put the GDROM back in and it didn't run a JP title.
1.01c has no software differences from 1.01d, they work exactly the same.
MoeFoh wrote: Now after trying to install the hardware GDEMU in both his consoles, the GDEMU no longer works :( (just a black screen).
let him look at the connector that is inserted into the motherboard

my2k2zx2
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Posts: 7

Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by my2k2zx2 »

Here is the gdemu pics. It's no longer working, just getting a black screen on both consoles. https://imgur.com/a/xJAXtQc
I've got a new gdemu on order, but will take a couple weeks to arrive.

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megavolt85
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Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by megavolt85 »

I'm willing to bet that if you replace that crappy connector, your GDEMU will work :D
these cut connectors caused a lot of problems to users

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MoeFoh
Outrun
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Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by MoeFoh »

megavolt85 wrote:I'm willing to bet that if you replace that crappy connector, your GDEMU will work :D
these cut connectors caused a lot of problems to users
Indeed. Some are only 5mm-6mm tall instead of 8mm tall, so getting good contact with the motherboard connector can be iffy.

Hopefully, he'll get a better quality board with newer firmware.
Avoid this type of GDEMU connector
Avoid this type of GDEMU connector
Last edited by MoeFoh on Wed Nov 01, 2023 5:50 am, edited 3 times in total.

my2k2zx2
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Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by my2k2zx2 »

I took a multimeter to the board and it has a ton of shorted parts. I think it finally gave up. Not sure what to do with it at this point.
I'll report back when I get the new one.

my2k2zx2
shadow
Posts: 7

Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by my2k2zx2 »

5.20.5 arrived and is in the va0.
Using the SD tool with the gdemu button checked it still goes back to system menu after selecting a game.
Using the Openmenu button, games boot every time with the default theme and gdemu theme.

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megavolt85
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Posts: 1917

Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by megavolt85 »

There is no point in checking GDMENU, there are no changes for it and there will not be any.
I need you to do several tests, firstly when using GDEMU 5.20.x you need to add the line image_tests=0 to the GDMENU.ini file on your SD card
What images did you try, where did you download them?
try running the game using codebreaker, select the game and press the B button.

my2k2zx2
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Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by my2k2zx2 »

What difference am I looking for with the image-tests added in?
I downloaded a big set from archive.org, file name has tosec in it.

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megavolt85
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Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by megavolt85 »

image_tests=0 will disable strict image checking, some GDI cannot be recognized, for example all atomiswave games.
launching games with the B button uses a codebreaker, but it uses a different way to launch games
My task at this stage is to understand what exactly is blocking the launch.
P.S. I have a suspicion that there are two types of Bios 1.01c

my2k2zx2
shadow
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Re: Anybody heard of Dreamcast BIOS v1.01c?

Post by my2k2zx2 »

In Openmenu, codebreaker loads and does apply a cheat. I tried infinite time on Crazy Taxi and it worked.
Is there a way to dump the bios? I do have an serial/SD adapter but never messed with it.