how to Multiboot (Ez flash omega)

AshenOne01 · Dec 4, 2021

Hi everyone.
I've just received an Ez flash omega. I have 2 GBA SP, and wanna play multiple player.
I also highlighted "DIRECT BOOT" then pressed "L + A" to launch the game with BIOS loaded. But it didn't work.
Please tell me how to active Multiboot mode.
If you have instruction video please give me.
Thank you so much!

zfreeman · Dec 4, 2021

The ends should be labeled numerically. The host, player 1, should have the '1' end inserted into the 1st GBA. Boot the game from the cartridge, and head to the multiplayer lobby.

The client, player 2, should have the '2' end inserted into the 2nd GBA. Boot the 2nd GBA without a cartridge. Once the 'Nintendo' logo chimes, it will enter multiboot mode.

Also, even though the link cable is for GBA, it might only work with GB/GBC games.

What is the title of your game, and what is the file's CRC32 hash?

AshenOne01 · Dec 4, 2021

zfreeman said:
The ends should be labeled numerically. The host, player 1, should have the '1' end inserted into the 1st GBA. Boot the game from the cartridge, and head to the multiplayer lobby.

The client, player 2, should have the '2' end inserted into the 2nd GBA. Boot the 2nd GBA without a cartridge. Once the 'Nintendo' logo chimes, it will enter multiboot mode.

Also, even though the link cable is for GBA, it might only work with GB/GBC games.

oh i see. Thank you very much. So what kinds of link cable do i need to get ?

(

Shadow#1 · Dec 4, 2021

zfreeman said:
The ends should be labeled numerically. The host, player 1, should have the '1' end inserted into the 1st GBA. Boot the game from the cartridge, and head to the multiplayer lobby.

The client, player 2, should have the '2' end inserted into the 2nd GBA. Boot the 2nd GBA without a cartridge. Once the 'Nintendo' logo chimes, it will enter multiboot mode.

Also, even though the link cable is for GBA, it might only work with GB/GBC games.

It won't work for gb/gbc

zfreeman · Dec 4, 2021

Good catch.

AshenOne01 · Dec 4, 2021

zfreeman said:
The ends should be labeled numerically. The host, player 1, should have the '1' end inserted into the 1st GBA. Boot the game from the cartridge, and head to the multiplayer lobby.

The client, player 2, should have the '2' end inserted into the 2nd GBA. Boot the 2nd GBA without a cartridge. Once the 'Nintendo' logo chimes, it will enter multiboot mode.

Also, even though the link cable is for GBA, it might only work with GB/GBC games.

What is the title of your game, and what is the file's CRC32 hash?

this game is Justice League - Chronicles, But i don't know how to get CRC32 hash :<

Shadow#1 · Dec 4, 2021

AshenOne01 said:
this game is Justice League - Chronicles, But i don't know how to get CRC32 hash :QUOTE]http://implbits.com/

AshenOne01 · Dec 4, 2021

Thank you

AshenOne01 · Dec 4, 2021

Why do i need hash?
Sorry, but i'm not good at technology

Shadow#1 · Dec 4, 2021

zfreeman said:
Good catch.

As I do have a 3rd party 2-4 player cable with a GBA/GB-GBC switch on it

AshenOne01 · Dec 4, 2021

But what can i do with this hash :<

zfreeman · Dec 4, 2021

The hash would show if the file is altered/corrupted. In this case, how ever, the Omega flash cart runs GB/GBC games in an emulator. The Goomba emulator does not allow multiplayer. You would need another flash cart to do what you want.

Hmm. Justice League - Chronicles is a GBA game. There shouldn't be a problem. I'm assuming the cords are the issue. I'll try to reproduce it on my Omega.

AshenOne01 · Dec 5, 2021

zfreeman said:
The hash would show if the file is altered/corrupted. In this case, how ever, the Omega flash cart runs GB/GBC games in an emulator. The Goomba emulator does not allow multiplayer. You would need another flash cart to do what you want.

Hmm. Justice League - Chronicles is a GBA game. There shouldn't be a problem. I'm assuming the cords are the issue. I'll try to reproduce it on my Omega.

i got it. Thank you

zfreeman · Dec 5, 2021

You got it working? What was the issue?

AshenOne01 · Dec 6, 2021

zfreeman said:
You got it working? What was the issue?

Yes, it worked. i tried using 2 ez flash omega for 2 GBA SP at the same time

how to Multiboot (Ez flash omega)

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